TABLE OF CONTENTS

                                                                       Page

1.   Subscription for Purchase of Securities . . . . . . . . . . . . . .  2
     1.1  Sale and Purchase. . . . . . . . . . . . . . . . . . . . . . .  2
     1.2  Reporting Company. . . . . . . . . . . . . . . . . . . . . . .  3
     1.3  Terms of the Series 4 Preferred Stock and Warrants . . . . . .  3

2.   Payment of Purchase Price; Delivery of Securities . . . . . . . . .  3
     2.1  Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     2.2  Purchase Price and Payment . . . . . . . . . . . . . . . . . .  3
     2.3  Restrictive Legends. . . . . . . . . . . . . . . . . . . . . .  4

3.   Representations, Warranties and Covenants of Subscriber . . . . . .  4
     3.1  Investment Intent. . . . . . . . . . . . . . . . . . . . . . .  4
     3.2  Certain Risk . . . . . . . . . . . . . . . . . . . . . . . . .  5
     3.3  Prior Investment Experience. . . . . . . . . . . . . . . . . .  5
     3.4  No Review by the SEC . . . . . . . . . . . . . . . . . . . . .  5
     3.5  Not Registered . . . . . . . . . . . . . . . . . . . . . . . .  6
     3.6  No Public Market . . . . . . . . . . . . . . . . . . . . . . .  6
     3.7  Sophisticated Investor . . . . . . . . . . . . . . . . . . . .  6
     3.8  SEC Filing . . . . . . . . . . . . . . . . . . . . . . . . . .  7
     3.9  Documents, Information and Access. . . . . . . . . . . . . . .  7
     3.10 No Registration, Review or Approval. . . . . . . . . . . . . .  7
     3.11 Transfer Restrictions. . . . . . . . . . . . . . . . . . . . .  7
     3.12 No Short Sale. . . . . . . . . . . . . . . . . . . . . . . . .  8
     3.13 Reliance . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
     3.14 Accuracy or Representations and Warranties . . . . . . . . . .  8
     3.15 Indemnity. . . . . . . . . . . . . . . . . . . . . . . . . . .  8
     3.16 Survival . . . . . . . . . . . . . . . . . . . . . . . . . . .  9

4.   Representations, Warranties and Covenants of the
     Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     4.1  Organization, Authority, Qualification . . . . . . . . . . . .  9
     4.2  Authorization. . . . . . . . . . . . . . . . . . . . . . . . .  9
     4.3  Ownership of, and Title to, Securities . . . . . . . . . . . .  9
     4.4  Exemption from Registration. . . . . . . . . . . . . . . . . . 10
     4.5  Use of Proceeds from this Offering . . . . . . . . . . . . . . 10

5.   Registration Rights . . . . . . . . . . . . . . . . . . . . . . . . 10
     5.1  Registration . . . . . . . . . . . . . . . . . . . . . . . . . 10
     5.2  Current Registration Statement . . . . . . . . . . . . . . . . 11
     5.3  0.1% Penalty . . . . . . . . . . . . . . . . . . . . . . . . . 11
     5.5  Other Provisions . . . . . . . . . . . . . . . . . . . . . . . 12
     5.6  Costs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
     5.7  Successors . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.   Indemnification.. . . . . . . . . . . . . . . . . . . . . . . . . . 13
     6.1  By the Company . . . . . . . . . . . . . . . . . . . . . . . . 13
     6.2  By the Subscriber. . . . . . . . . . . . . . . . . . . . . . . 13
     6.3  Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7.   Securities Legends and Notices. . . . . . . . . . . . . . . . . . . 14


8.   Miscellaneous.  . . . . . . . . . . . . . . . . . . . . . . . . . . 16
     8.1  Amendment; Waiver. . . . . . . . . . . . . . . . . . . . . . . 16
     8.2  Binding Effect; Assignment . . . . . . . . . . . . . . . . . . 16
     8.3  Governing Law; Litigation Costs. . . . . . . . . . . . . . . . 16
     8.4  Severability . . . . . . . . . . . . . . . . . . . . . . . . . 16
     8.5  Headings . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     8.6  Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . 17
     8.7  Transfer Taxes . . . . . . . . . . . . . . . . . . . . . . . . 17
     8.8  Entire Agreement . . . . . . . . . . . . . . . . . . . . . . . 17
     8.9  Authority; Enforceability. . . . . . . . . . . . . . . . . . . 17
     8.10 Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     8.11 No Third Party Beneficiaries . . . . . . . . . . . . . . . . . 18
     8.12 Public Announcements . . . . . . . . . . . . . . . . . . . . . 18

Exhibit "A"    -    Certificate of Designations
Exhibit "B"    -    Common Stock Purchase Warrant


                     SUBSCRIPTION AND PURCHASE AGREEMENT

                                    for

       2,500 SHARES OF SERIES 4 CLASS D CONVERTIBLE PREFERRED STOCK,

                         PAR VALUE $.001 PER SHARE

                                    and

                375,000 WARRANTS, EACH WARRANT TO PURCHASE

                         ONE SHARE OF COMMON STOCK

                                    of

                  PERMA-FIX ENVIRONMENTAL SERVICES, INC.
                         (a Delaware corporation)


     THIS SUBSCRIPTION AND PURCHASE AGREEMENT (the "Agreement") is
dated as of the 9th day of June, 1997, by and between PERMA-FIX
ENVIRONMENTAL SERVICES, INC., a Delaware corporation, having offices
at 1940 Northwest 67th Place, Gainesville, Florida 32653 (the
"Company"), and RBB BANK AKTIENGESELLSCHAFT, organized under the
laws of Austria, and having its principal offices at Burgring 16,
8101 Graz, Austria (the "Subscriber").

                           W I T N E S S E T H:

     WHEREAS, the Subscriber and the Company have arranged for the
Agreement to provide for the subscription and, if such subscription
as set forth in this Agreement is accepted by the Company, the
purchase by the Subscriber, on the terms and subject to the
conditions set forth in this Agreement, of (i) an aggregate of 2,500
shares of a new series of convertible preferred stock, par value
$.001 per share, to be designated by the Company's Board of
Directors as "Series 4 Class D Convertible Preferred Stock" (the
"Series 4 Preferred Stock"), with such Series 4 Preferred Stock
containing such terms, conditions, restrictions and provisions as
set forth in the Certificate of Designation attached hereto as
Exhibit "A," and (ii) an aggregate of 375,000 common stock purchase
warrants (a "Warrant" and collectively, the "Warrants"), with each
common stock purchase warrant providing for the purchase of one
share of the Company's common stock, par value $.001 per share (the
"Common Stock"), at the exercise prices set forth herein (the Series
4 Preferred Stock and the Warrants are collectively referred to
herein from time to time as the "Securities");

     WHEREAS, the Common Stock is listed for trading on the Boston
Stock Exchange and the National Association of Securities Dealers
Automated Quotation system ("NASDAQ"), and the Company is subject
to the reporting requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, as amended (the "Exchange Act") and


has been subject to such filing requirements for the past ninety
(90) days;

     WHEREAS, the Subscriber is an "accredited investor" as such
term is defined in Rule 501 of Regulation D promulgated under the
Securities Act of 1933, as amended (the "Securities Act");

     WHEREAS, the Subscriber is not a "U. S. Person," as such term
is defined in Regulation S promulgated under the Securities Act;

     WHEREAS, in order to induce the Subscriber to enter into this
Agreement and to subscribe for and purchase the Securities on the
terms and subject to the conditions hereof, the Company is granting
certain registration rights under the Agreement with respect to the
Common Stock issuable upon the conversion of the Series 4 Preferred
Stock and the Common Stock issuable upon the exercise of the
Warrants;

     WHEREAS, in reliance upon the representations made by the
Subscriber in this Agreement, the transactions contemplated by this
Agreement are such that  the offer and sale of Securities by the
Company hereunder will be exempt from registration under applicable
federal (U. S.) securities laws since this is a private placement
and intended to be a nonpublic offering pursuant to Sections 4(2)
and/or 3(b) of the Securities Act and/or Regulation D promulgated
under the Securities Act; and,

     WHEREAS, the Securities to be sold in accordance with this
Agreement will not be quoted or listed for trading on any securities
exchange, organized market or quotation system at the time of
acquisition hereunder.

     NOW, THEREFORE, for and in consideration of the premises, and
the mutual representations, warranties, covenants and agreements set
forth herein, and for other good and valuable consideration, receipt
of which is hereby acknowledged, the parties hereto agree as
follows:

1.   Subscription for Purchase of Securities.

     1.1  Sale and Purchase.  On the basis of the representations,
          warranties, covenants and agreements, and subject to the
          terms and conditions set forth herein, on the Closing
          Date, the Company agrees to sell, transfer, convey and
          deliver to the Subscriber, and the Subscriber agrees to
          purchase, acquire and accept delivery from the Company,
          the Securities for an aggregate purchase price of Two
          Million Five Hundred Thousand United States ("U. S.")
          Dollars ($2,500,000) ("Purchase Price").


     1.2  Reporting Company.  Although the Securities, the shares
          of Common Stock issuable upon conversion of the Series 4
          Preferred Stock (the "Conversion Shares") and the shares
          of Common Stock issuable upon exercise of the Warrants
          (the "Warrant Shares") shall not be registered as of the
          Closing under federal or state securities laws or any
          rules or regulations promulgated thereunder, the Company
          is reporting company under the Securities Exchange Act of
          1934, as amended (the "Exchange Act") and has filed with
          the Securities and Exchange Commission (the "SEC") all
          reports required to be filed by the Company under Section
          13 or 15(d) of the Exchange Act.  The Subscriber has had
          the opportunity to review, and has reviewed, all such
          reports and information which the Subscriber deemed
          material to an investment decision regarding the purchase
          of the Securities.

     1.3  Terms of the Series 4 Preferred Stock and Warrants.  The
          Series 4 Preferred Stock shall contain and be subject to
          the terms, conditions, preferences and restrictions set
          forth in the Certificate of Designations attached hereto
          as Exhibit "A."  The Warrants will be substantially in
          the form attached hereto as Exhibit "B," subject to the
          terms, and with the date and exercise price of such
          Warrants to be as set forth in Section 2.

2.   Payment of Purchase Price; Delivery of Securities.

     2.1  Closing.  The consummation of this Agreement (the
          "Closing") will occur on June 11, 1997 (the "Closing
          Date"), at the offices of the Company or at such other
          mutually convenient time or at such other mutually
          convenient place as agreed upon by the parties.

     2.2  Purchase Price and Payment.  At the Closing, the
          Subscriber shall deliver to the Company the Purchase
          Price, in cash by wire transfer.  Upon receipt by the
          Company of the Purchase Price, the Company shall cause to
          be delivered: (a) to Conner & Winters, A Professional
          Corporation, a certificate or certificates representing
          the 2,500 shares of Series 4 Preferred Stock purchased by
          the Subscriber, in such denominations as Subscriber
          requests in writing, to be held in escrow by Conner &
          Winters, A Professional Corporation, for the Subscriber;
          and (b) to the Subscriber, (i) written evidence from the
          Secretary of State of the State of Delaware that the
          Certificate of Designations has been filed in the Office
          of the Secretary of State of the State of Delaware on or
          before the Closing Date; (ii) a Warrant, dated the
          Closing Date, entitling the Subscriber to purchase after


          December 31, 1997, an aggregate of up to 187,500 Warrant
          Shares at an exercise price equal to $2.10 per share
          ("$2.10 Warrant"), and (iii) a Warrant, dated the Closing
          Date, entitling the Subscriber to purchase after
          December 31, 1997, an aggregate of up to 187,500 Warrant
          Shares at an exercise price equal to $2.50 per share
          ("$2.50 Warrant").  If at any time the Warrant Shares are
          covered by an effective registration statement filed with
          the SEC and the average closing bid price of the Common
          Stock for ten (10) consecutive trading days shall be in
          excess of $3.50 with respect to the $2.10 Warrants or in
          excess of $4.00 with respect to the $2.50 Warrants, then
          the Company shall have the option to redeem the Warrants
          for an amount equal to one cent ($0.01) per Warrant Share
          covered by the Warrants.  Each Warrant to be delivered at
          the Closing will have an expiration date of June 9, 2000.

     2.3  Restrictive Legends.  Subscriber agrees that, subject to
          the provisions of Section 5 below, all certificates
          representing the Securities shall bear the restrictive
          legend substantially in the form set forth in Section 7
          below which shall include, but not be limited to, a
          legend to the effect that (a) the Securities represented
          by such certificate have not been registered under the
          Securities Act, and (b) unless there is an effective
          registration statement relating to the Securities, the
          Securities may not be offered, sold, transferred,
          mortgaged, pledged or hypothecated without an exemption
          from registration and an opinion of counsel to the
          Company with respect thereto, or an opinion from counsel
          for the Subscriber, which opinion is satisfactory to the
          Company, to the effect that registration under the Act is
          not required in connection with such sale or transfer and
          the reasons therefor.  The legend on all such
          certificates shall make reference to the registration
          rights set forth in Section 5 hereof.
     
3.   Representations, Warranties and Covenants of Subscriber.  The
Subscriber hereby represents, warrants and covenants to the Company
as follows:

     3.1  Investment Intent.  The Subscriber represents and
          warrants that the Securities are being, and any
          underlying Conversion Shares and Warrant Shares will be, 
          purchased or acquired solely for the Subscriber's own
          account, for investment purposes only and not with a view
          toward the distribution or resale to others.  The
          Subscriber acknowledges, understands and appreciates that
          the Securities have not been registered under the
          Securities Act by reason of a claimed exemption under the


          provisions of the Securities Act which depends, in large
          part, upon the Subscriber's representations as to
          investment invention, investor status, and related and
          other matters set forth herein.  Subscriber understands
          that, in the view of the United States Securities and
          Exchange Commission (the "SEC"), among other things, a
          purchase now with an intent to distribute or resell would
          represent a purchase and acquisition with an intent
          inconsistent with its representation to the Company, and
          the SEC might regard such a transfer as a deferred sale
          for which the registration exemption is not available.

     3.2  Certain Risk.  The Subscriber recognizes that the
          purchase of the Securities involves a high degree of risk
          in that (a) the Company has sustained losses through
          March 31, 1997, from its operations, and may require
          substantial funds in addition to the proceeds of this
          private placement; (b) that the Company has a substantial
          accumulated deficit; (c) an investment in the Company is
          highly speculative and only investors who can afford the
          loss of their entire investment should consider investing
          in the Company and the Securities; (d) an investor may
          not be able to liquidate his investment; (e)
          transferability of the Securities is extremely limited;
          (f) in the event of a disposition an investor could
          sustain the loss of his entire investment; (g) the
          Securities represent non-voting equity securities, and
          the right to convert into and purchase shares of voting
          equity securities in a corporate entity that has an
          accumulated deficit; (h) no return on investment, whether
          through distributions, appreciation, transferability or
          otherwise, and no performance by, through or of the
          Company, has been promised, assured, represented or
          warranted by the Company, or by any director, officer,
          employee, agent or representative thereof; and, (i) while
          the Common Stock is presently quoted and traded on the
          Boston Stock Exchange and the Nasdaq SmallCap Market and
          while the Subscriber is a beneficiary of certain
          registration rights provided herein, the Securities
          subscribed for and that are purchased under this
          Agreement, the Conversion Shares, and the Warrant Shares
          (i) are not registered under applicable federal (U. S.)
          or state securities laws, and thus may not be sold,
          conveyed, assigned or transferred unless registered under
          such laws or unless an exemption from registration is
          available under such laws, as more fully described
          herein, and (ii) the Securities subscribed for and that
          are to be purchased under this Agreement are not quoted,
          traded or listed for trading or quotation on the NASDAQ,
          or any other organized market or quotation system, and


          there is therefore no present public or other market for
          the Securities, nor can there be any assurance that the
          Common Stock of the Company will continue to be quoted,
          traded or listed for trading or quotation on the Boston
          Stock Exchange or the Nasdaq SmallCap Market or on any
          other organized market or quotation system.

     3.3  Prior Investment Experience.  The Subscriber acknowledges
          that it has prior investment experience, including
          investment in non-listed and non-registered securities,
          or has employed the services of an investment advisor,
          attorney or accountant to read all of the documents
          furnished or made available by the Company to it and to
          evaluate the merits and risks of such an investment on
          its behalf, and that it recognizes the highly speculative
          nature of this investment.

     3.4  No Review by the SEC.  The Subscriber hereby acknowledges
          that this offering of the Securities has not been
          reviewed by the SEC because this private placement is
          intended to be a nonpublic offering pursuant to Sections
          4(2) and/or 3(b) of the Securities Act and/or Regulation
          D promulgated under the Securities Act.

     3.5  Not Registered.  The Subscriber understands that the
          Securities, the Conversion Shares and the Warrant Shares
          have not been registered under the Securities Act by
          reason of a claimed exemption under the provisions of the
          Securities Act which depends, in part, upon the
          Subscriber's investment intention.  In this connection,
          the Subscriber understands that it is the position of the
          SEC that the statutory basis for such exemption would not
          be present if its representation merely meant that its
          present intention was to hold such securities for a short
          period, such as the capital gains period of tax statutes,
          for a deferred sale, for a market rise (assuming that a
          market develops), or for any other fixed period.

     3.6  No Public Market.  The Subscriber understands that there
          is no public market for the Series 4 Preferred Stock or
          the Warrants.  The Subscriber understands that although
          there is presently a public market for the Common Stock,
          including the Common Stock issuable upon conversion of
          the Series 4 Preferred Stock or exercise of the Warrants,
          Rule 144 (the "Rule") promulgated under the Securities
          Act requires, among other conditions, a one-year holding
          period following full payment of the consideration
          therefor prior to the resale (in limited amounts) of
          securities acquired in a nonpublic offering without
          having to satisfy the registration requirements under the

          Securities Act.  The Subscriber understands that the
          Company makes no representation or warranty regarding its
          fulfillment in the future of any reporting requirements
          under the Exchange Act, or its dissemination to the
          public of any current financial or other information
          concerning the Company, as is required by the Rule as one
          of the conditions of its availability.  The Subscriber
          understands and hereby acknowledges that the Company is
          under no obligation to register the Securities or the
          Conversion Shares or the Warrant Shares under the
          Securities Act, except as set forth in Section 5 hereof. 
          The Subscriber agrees to hold the Company and its
          directors, officers and controlling persons and their
          respective heirs, representatives, successors and assigns
          harmless and to indemnify them against all liabilities,
          costs and expenses incurred by them as a result of any
          misrepresentation made by the Subscriber contained herein
          or any sale or distribution by the Subscriber in
          violation of the Securities Act or any applicable state
          securities or "blue sky" laws (collectively, "Securities
          Laws").

     3.7  Sophisticated Investor.  That (a) the Subscriber has
          adequate means of providing for the Subscriber's current
          financial needs and possible contingencies and has no
          need for liquidity of the Subscriber's investment in the
          Securities; (b) the Subscriber is able to bear the
          economic risks inherent in an investment in the
          Securities and that an important consideration bearing on
          its ability to bear the economic risk of the purchase of
          Securities is whether the Subscriber can afford a
          complete loss of the Subscriber's investment in the
          Securities and the Subscriber represents and warrants
          that the Subscriber can afford such a complete loss; and
          (c) the Subscriber has such knowledge and experience in
          business, financial, investment and banking matters
          (including, but not limited to, investments in
          restricted, non-listed and non-registered securities)
          that the Subscriber is capable of evaluating the merits,
          risks and advisability of an investment in the
          Securities.

     3.8  SEC Filing.  The Subscriber acknowledges that it has been
          previously furnished with true and complete copies of the
          following documents which have been filed with the SEC
          pursuant to Sections 13(a), 14(a), 14(c) or 15(d) of the
          Exchange Act since January 1, 1997, and that such have
          been furnished to the Subscriber a reasonable time prior
          to the date hereof: (a) the Company's Form 10-K for the

          year ended December 31, 1996, and (b) the Company's Form
          10-Q for the quarter ended March 31, 1997.

     3.9  Documents, Information and Access.  The Subscriber's
          decision to purchase the Securities is not based on any
          promotional, marketing or sales materials, and the
          Subscriber and its representatives have been afforded,
          prior to purchase thereof, the opportunity to ask
          questions of, and to receive answers from, the Company
          and its management, and has had access to all documents
          and information which Subscriber deems material to an
          investment decision with respect to the purchase of
          Securities hereunder.

     3.10 No Registration, Review or Approval.  The Subscriber
          acknowledges and understands that the private offering
          and sale of Securities pursuant to this Agreement has not
          been reviewed or approved by the SEC or by any state
          securities commission, authority or agency, and is not
          registered under the Securities Laws.  The Subscriber
          acknowledges, understands and agrees that the Shares are
          being offered and sold hereunder pursuant to (i) a
          private placement exemption to the registration
          provisions of the Securities Act pursuant to Section 3(b)
          and/or Section 4(2) of such Securities Act and/or
          Regulation D promulgated under the Securities Act) and
          (ii) a similar exemption to the registration provisions
          of applicable state securities laws.

     3.11 Transfer Restrictions.  That Subscriber will not transfer
          any Securities purchased under this Agreement or any
          Conversion Shares or Warrant Shares purchased under this
          Agreement unless such Securities are registered under the
          Securities Laws, or unless an exemption is available
          under such Securities Laws, and the Company may, if it
          chooses, where an exemption from registration is claimed
          by such Subscriber, condition any transfer of Securities,
          Conversion Shares or Warrant Shares out of the
          Subscriber's name on an opinion of the Company's counsel,
          to the effect that the proposed transfer is being
          effected in accordance with, and does not violate, an
          applicable exemption from registration under the
          Securities Laws, or an opinion of counsel to the
          Subscriber, which opinion is satisfactory to the Company,
          to the effect that registration under the Securities Act
          is not required in connection with such sale or transfer
          and the reasons therefor.

     3.12 No Short Sale.  The Subscriber expressly agrees that
          until such time that it has sold all of the Securities


          and/or all of the Conversion Shares and Warrant Shares
          that it shall not, directly or indirectly, through an
          affiliate (as that term is defined under Rule 405
          promulgated under the Securities Act) or by, with or
          through an unrelated third party or entity, whether or
          not pursuant to a written or oral understanding,
          agreement, arrangement, scheme, or artifice of nature
          whatsoever, engage in the short selling of the Company's
          Common Stock or any other equity securities of the
          Company, whether now existing or hereafter issued, or
          engage in any other activity of any nature whatsoever
          that has the same effect as a short sale, or is a de
          facto or de jure short sale, of the Company's Common
          Stock or any other equity security of the Company,
          whether now existing or hereafter issued, including, but
          not limited to, the sale of any rights pursuant to any
          understanding, agreement, arrangement, scheme or artifice
          of any nature whatsoever, whether oral or in writing,
          relative to the Company's Common Stock or any other
          equity securities of the Company whether now existing or
          hereafter created.

     3.13 Reliance.  The Subscriber understands and acknowledges
          that the Company is relying upon all of the
          representations, warranties, covenants, understandings,
          acknowledgements and agreements contained in this
          Agreement in determining whether to accept this
          subscription and to sell and issue the Securities to the
          Subscriber.

     3.14 Accuracy or Representations and Warranties.  All of the
          representations, warranties, understandings and
          acknowledgments that Subscriber has made herein are true
          and correct in all material respects as of the date of
          execution hereof.  The Subscriber will perform and comply
          fully in all material respects with all covenants and
          agreements set forth herein, and the Subscriber covenants
          and agrees that until the acceptance of this Agreement by
          the Company, the Subscriber shall inform the Company
          immediately in writing of any changes in any of the
          representations or warranties provided or contained
          herein.

     3.15 Indemnity.  The Subscriber hereby agrees to indemnify and
          hold harmless the Company, and the Company's successors
          and assigns, from, against and in all respects of any
          demands, claims, actions or causes of action,
          assessments, liabilities, losses, costs, damages,
          penalties, charges, fines or expenses (including, without
          limitation, interest, penalties, and attorney and

          accountants' fees, disbursements and expenses), arising
          out of or relating to any breach by Subscriber of any
          representations, warranty, covenant or agreement made by
          Subscriber in this Agreement.  Such right to
          indemnification shall be in addition to any and all other
          rights of the Company under this Agreement or otherwise,
          at law or in equity.

     3.16 Survival.  The Subscriber expressly acknowledges and
          agrees that all of its representations, warranties,
          agreements and covenants set forth in this Agreement
          shall be of the essence hereof and shall survive the
          execution, delivery and Closing of this Agreement, the
          sale and purchase of the Securities, the conversion of
          the Series 4 Preferred Stock, exercise of the Warrants,
          and the sale of the Conversion Shares and the Warrant
          Shares.

4.   Representations, Warranties and Covenants of the Company.  In
order to induce Subscriber to enter into this Agreement and to
purchase the Securities, the Company hereby represents, warrants and
covenants to Subscriber as follows:

     4.1  Organization, Authority, Qualification.  The Company is
          a corporation duly incorporated, validly existing and in
          good standing under the laws of the State of Delaware. 
          The Company has full corporate power and authority to own
          and operate its properties and assets and to conduct and
          carry on its business as it is now being conducted and
          operated.

     4.2  Authorization.  The Company has full power and authority
          to execute and deliver this Agreement and to perform its
          obligations under and consummate the transactions
          contemplated by this Agreement.  Upon the execution of
          this Agreement by the Company and delivery of the
          Securities, this Agreement shall have been duly and
          validly executed and delivered by the Company and shall
          constitute the legal, valid and binding obligation of the
          Company, enforceable against the Company in accordance
          with its terms.

     4.3  Ownership of, and Title to, Securities.  The Securities
          to be purchased by the Subscriber are, and all Conversion
          Shares and Warrant Shares, when issued, will be, duly
          authorized, validly issued, fully paid and nonassessable
          shares of the capital stock of the Company, free of
          personal liability.  Upon consummation of the purchase of
          the Securities (and upon the exercise of the Warrants and
          conversion of the Preferred Stock, in whole or in part)

          pursuant to this Agreement, the Subscriber will own and
          acquire title to the Securities (and the Warrant Shares
          and the Conversion Shares, as the case may be) free and
          clear of any and all proxies, voting trusts, pledges,
          options, restrictions, or other legal or equitable
          encumbrance of any nature whatsoever (other than the
          restrictions on transfer due to Securities Laws or as
          otherwise provided for in this Agreement or the
          Certificate of Designation).

     4.4  Exemption from Registration.  The offer and sale of
          Securities to the Subscriber in accordance with the terms
          and provisions of this Agreement is being effected in
          accordance with the Securities Act, pursuant to a private
          placement exemption to the registration provisions of the
          Act pursuant to Section 3(b) and/or 4(2) of such Act
          and/or Regulation D promulgated under such Act, based on
          the representations, warranties and covenants made by the
          Subscriber contained in this Agreement.

     4.5  Use of Proceeds from this Offering.  The net proceeds
          from the sale of the Series 4 Preferred Stock are
          estimated to be approximately $2,287,500 after payment of
          placement fees to brokers of $200,000 and legal fees and
          expenses of approximately $12,500, but prior to any fees
          and expenses relating to the registration of the
          Conversion Shares and the Warrant Shares pursuant to the
          terms of Section 5 hereof.  The Company intends to
          utilize the net proceeds for capital improvements at its
          various facilities, to reduce outstanding trade payables,
          and for general working capital.

5.   Registration Rights.  In order to induce the Subscriber to
enter into this Agreement and purchase the Securities, the Company
hereby covenants and agrees to grant to the Subscriber the rights
set forth in this Section 5 with respect to the registration of the
Warrant Shares and the Conversion Shares.

     5.1  Registration.  Subject to the terms of Section 5 hereof,
          the Company agrees that within thirty (30) days after the
          Closing Date, it shall prepare and file with the SEC, a
          registration statement on Form S-3 or equivalent form
          (the "Registration Statement") and such other documents,
          including a prospectus, as may be necessary in the
          opinion of counsel for the Company in order to comply
          with the provisions of the Securities Act, so as to
          permit a public offering and sale by the Subscriber of up
          to 1,482,000 shares of Common Stock issuable upon
          conversion of the Series 4 Preferred Stock, plus up to
          250,000 shares of Common Stock, if any, issuable as

          payment of dividends on the Series 4 Preferred Stock
          pursuant to the terms of the Series 4 Preferred Stock,
          and 375,000 shares of Common Stock issuable upon exercise
          of the Warrants.  The Company shall use its reasonable
          efforts to cause such Registration Statement to become
          effective at the earliest possible date after filing.  In
          connection with the offering of such Common Stock
          registered pursuant to this Section 5, the Company shall
          take such actions as shall be reasonably necessary to
          qualify the Common Stock covered by such Registration
          Statement under such "blue sky" or other state securities
          laws for offer and sale as shall be reasonably necessary
          to permit the public offering and sale of shares of
          Common Stock covered by such Registration Statement;
          provided, however, that the Company shall not be required
          (a) to qualify generally to do business in any
          jurisdiction where it would not otherwise be required to
          qualify but for this subparagraph, (b) to subject itself
          to taxation in any such jurisdiction, or (c) to consent
          to general service of process in any such jurisdiction. 
          It is expressly agreed that in no event are any
          registration rights being granted to the Series 4
          Preferred Stock itself, but only with respect to the
          underlying Conversion Shares issuable upon exercise of
          the Series 4 Preferred Stock and the Warrant Shares
          issuable upon the exercise of the Warrants.

     5.2  Current Registration Statement.  Once effective, the
          Company shall use its reasonable efforts to cause such
          Registration Statement filed hereunder to remain current
          and effective for a period of three (3) years or until
          the shares of Common Stock covered by such Registration
          Statement are sold by the Subscriber, whichever is
          sooner.  The Subscriber shall promptly provide all such
          information and materials and take all such action as may
          be required in order to permit the Company to comply with
          all applicable requirements of the SEC and to obtain any
          desired acceleration of the effective date of such
          registration statement.

     5.3  0.1% Penalty.  In the event the Registration Statement
          referred to in Section 5.1 above is not declared
          effective by the Commission before 5:00 p.m. Eastern
          Daylight Savings Time on the one hundred twentieth
          (120th) day after the Closing Date (or the next business
          day if such one hundred twentieth (120th) day is a
          Saturday, Sunday or legal holiday), the Company agrees to
          pay to the Subscriber a penalty in an amount equal to
          one-tenth of one percent of the Purchase Price, payable
          in cash in U. S. dollars.  Once the Registration
          Statement is declared effective, if the Registration
          Statement becomes subsequently ineffective prior to the
          expiration of three (3) years from the Closing Date or
          the shares of Common Stock covered by the Registration
          Statement are sold by the Subscriber, whichever occurs
          first, the Company agrees to pay to the Subscriber the
          0.1% penalty for each calendar day that the Registration
          Statement is not effective, equal to the product of the
          number of outstanding shares of Series 4 Preferred Stock
          on each such day times One U. S. Dollar ($1.00)

     5.4  2.0% Penalty.  In the event the Registration Statement
          referred to in Section 5.1 above is not declared
          effective by the Commission before 5:00 p.m. Eastern
          Daylight Savings Time on the one hundred fiftieth (150th)
          day after the Closing Date (or the next business day of
          if such one hundred fiftieth day (150th) is a Saturday,
          Sunday or legal holiday), the Company agrees to pay to
          the Subscriber a one-time penalty in an amount equal to
          two percent (2%) of the Purchase Price, payable in cash
          or Common Stock of the Company at the Company's election. 
          Once declared effective, if the Registration Statement
          becomes subsequently ineffective for a period of thirty
          (30) consecutive calendar days, the Company agrees to pay
          to the Subscriber a one-time penalty in an amount equal
          to the product of (a) the number of shares of Series 4
          Preferred Stock outstanding on such thirtieth (30th) day
          times (b) Twenty Dollars ($20.00).  The penalties set
          forth in this Section 5.4 shall be payable at the
          election of the Company in cash or shares of the
          Company's Common Stock.  If the Company elects to deliver
          such payment in Common Stock of the Company, the number
          of shares of Common Stock to be issued to the Subscriber
          shall be determined by dividing the dollar value of the
          penalty by the average closing bid price of the Company's
          Common Stock as reported on the NASDAQ for the preceding
          five (5) trading days prior to the day on which the
          penalty is imposed.

     5.5  Other Provisions.  In connection with the offering of any
          Conversion Shares and/or Warrant Shares registered
          pursuant to this Section 5, the Company shall furnish to
          the Subscriber such number of copies of any final
          prospectus as it may reasonably request in order to
          effect the offering and sale of the Conversion Shares
          and/or Warrant Shares to be offered and sold.  In
          connection with any offering of Conversion Shares and/or
          Warrant Shares registered pursuant to this Section 5, the
          Company shall (a) furnish to the underwriters (if any),
          at the Company's expense, unlegended certificates

          representing ownership of the Conversion Shares and/or
          Warrant Shares sold under such Registration Statement in
          such denominations as requested and (b) instruct any
          transfer agent and registrar of the Conversion Shares
          and/or Warrant Shares to release immediately any stop
          transfer order, and to remove any restrictive legend,
          with respect to Conversion Shares and/or Warrant Shares
          included in any registration becoming effective pursuant
          to this Agreement upon the sale of such shares by the
          Subscriber.

     5.6  Costs.  Subject to the immediately following sentence,
          the Company shall in all events pay and be responsible
          for all fees, expenses, costs and disbursements
          associated with the Registration Statement relating to
          the Conversion Shares and the Warrant Shares under this
          Section 5, including filing fees, fees, costs and
          disbursements of any counsel, accountants and other
          consultants representing the Company in connection
          therewith.  Notwithstanding anything set forth herein to
          the contrary, Subscriber shall be responsible for and pay
          any and all underwriting discounts and commissions in
          connection with the sale of the Conversion Shares and/or
          Warrant Shares pursuant hereto and all fees of its legal
          counsel and other advisors retained in connection with
          reviewing any registration statement.

     5.7  Successors.  The Company will require any successor
          (whether direct or indirect, by purchase, merger,
          consolidation or otherwise) to all or substantially all
          of the business, properties, stock or assets of the
          Company, to expressly assume and agree to perform this
          Agreement in the same manner and to the same extent that
          the Company would be required to perform it if no such
          succession had taken place.

6.   Indemnification.

     6.1  By the Company.  Subject to the terms of this Section 6,
          the Company will indemnify and hold harmless the
          Subscriber, its directors and officers, and any
          underwriter (as defined in the Securities Act) for the
          Subscriber and each person, if any, who controls the
          Subscriber or such underwriter within the meaning of the
          Act, from and against, and will reimburse the Subscriber
          and each such underwriter and controlling person with
          respect to, any and all loss, damage, liability, cost and
          expense to which such holder or any such underwriter or
          controlling person may become subject under the Act or
          otherwise, insofar as such losses, damages, liabilities,

          costs or expenses are caused by any untrue statement or
          alleged untrue statement of any material fact contained
          in the Registration Statement filed with the SEC pursuant
          to Section 5, any prospectus contained therein or any
          amendment or supplement thereto, or arise out of, or are
          based upon, the omission or alleged omission to state
          therein a material fact required to be stated therein or
          necessary to make the statements therein, in light of the
          circumstances in which they were made not misleading;
          provided, however, that the Company will not be liable in
          any such case to the extent that any such loss, damage,
          liability, cost or expense arises out of, or is based
          upon, an untrue statement or alleged untrue statement or
          omission or alleged omission so made in conformity with
          information furnished by the Subscriber, such underwriter
          or such controlling person in writing specifically for
          use in the preparation thereof.

     6.2  By the Subscriber.  Subject to the terms of this Section
          6, the Subscriber will indemnify and hold harmless the
          Company, its directors and officers, any controlling
          person and any underwriter from and against, and will
          reimburse the Company, its directors and officers, any
          controlling person and any underwriter with respect to,
          any and all loss, damage, liability, cost or expense to
          which the Company or any controlling person and/or any
          underwriter may become subject under the Securities Act
          or otherwise, insofar as such losses, damages,
          liabilities, costs or expenses are caused by any untrue
          statement or alleged untrue statement of any material
          fact contained in such Registration Statement filed with
          the SEC pursuant to Section 5, any prospectus contained
          therein or any amendment or supplement thereto, or arise
          out of, or are based upon, the omission or alleged
          omission to state therein a material fact required to be
          stated therein or necessary to make the statements
          therein, in light of the circumstances in which they were
          made, not misleading, in each case to the extent, but
          only to the extent, that such untrue statement or alleged
          untrue statement or omission or alleged omission was so
          made in reliance upon, and in strict conformity with,
          written information furnished by, or on behalf of, the
          Subscriber specifically for use in the preparation
          thereof.

     6.3  Procedure.  Promptly after receipt by an indemnified
          party pursuant to the provisions of Section 6.1 or 6.2 of
          notice of the commencement of any action involving the
          subject matter of the foregoing indemnity provisions,
          such indemnified party will, if a claim thereof is to be

          made against the indemnifying party pursuant to the
          provisions of Section 6.1 or 6.2, promptly notify the
          indemnifying party of the commencement thereof; but the
          omission to so notify the indemnifying party will not
          relieve the indemnifying party from any liability which
          it may have to any indemnified party otherwise than
          hereunder.  In case such action is brought against any
          indemnified party and the indemnified party notifies the
          indemnifying party of the commencement thereof, the
          indemnifying party shall have the right to participate
          in, and, to the extent that it may wish, assume the
          defense thereof; or, if there is a conflict of interest
          which would prevent counsel for the indemnifying party
          from also representing the indemnified party, the
          indemnified parties have the right to select only one (1)
          separate counsel to participate in the defense of such
          action on behalf of all such indemnified parties.  After
          notice from the indemnifying parties to such indemnified
          party of the indemnifying parties' election so to assume
          the defense thereof, the indemnifying parties will not be
          liable to such indemnified parties pursuant to the
          provisions of said Section 6.1 or 6.2 for any legal or
          other expense subsequently incurred by such indemnified
          parties in connection with the defense thereof, other
          than reasonable costs of investigation, unless (a) the
          indemnified parties shall have employed counsel in
          accordance with the provisions of the preceding sentence;
          (b) the indemnifying parties shall not have employed
          counsel satisfactory to the indemnified parties to
          represent the indemnified parties within a reasonable
          time after the notice of the commencement of the action
          or (c) the indemnifying party has authorized the
          employment of counsel for the indemnified party at the
          expense of the indemnifying parties.

7.   Securities Legends and Notices.  Subscriber represents and
warrants that it has read, considered and understood the following
legends, and agrees that such legends, substantially in the form and
substance set forth below, shall be placed on all of the
certificates representing the Series 4 Preferred Stock and Warrants:

     Series 4 Preferred Stock Legends

     NEITHER THIS PREFERRED STOCK NOR ANY SHARES OF COMMON
     STOCK ISSUABLE UPON THE CONVERSION OF THIS PREFERRED
     STOCK HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF
     1933, AS AMENDED (THE "SECURITIES ACT") OR QUALIFIED
     UNDER APPLICABLE STATE SECURITIES LAWS.  THIS PREFERRED
     STOCK AND THE COMMON STOCK ISSUABLE UPON CONVERSION OF
     THIS PREFERRED STOCK MAY NOT BE OFFERED, SOLD, PLEDGED,

     HYPOTHECATED OR OTHERWISE TRANSFERRED IN THE ABSENCE OF
     AN EFFECTIVE REGISTRATION STATEMENT AND QUALIFICATION IN
     EFFECT WITH RESPECT THERETO UNDER THE SECURITIES ACT AND
     UNDER ANY APPLICABLE STATE SECURITIES LAW OR WITHOUT THE
     PRIOR WRITTEN CONSENT OF PERMA-FIX ENVIRONMENTAL
     SERVICES, INC. AND AN OPINION OF PERMA-FIX ENVIRONMENTAL
     SERVICES, INC.'S COUNSEL, OR AN OPINION FROM COUNSEL FOR
     THE HOLDER HEREOF, WHICH OPINION IS SATISFACTORY TO THE
     COMPANY, THAT SUCH REGISTRATION AND QUALIFICATION IS NOT
     REQUIRED UNDER APPLICABLE FEDERAL AND STATE SECURITIES
     LAWS OR AN EXEMPTION THEREFROM.

     NOTWITHSTANDING THE FOREGOING, THE SHARES OF COMMON STOCK
     ISSUABLE UPON CONVERSION ARE ALSO SUBJECT TO THE
     REGISTRATION RIGHTS SET FORTH IN THAT CERTAIN
     SUBSCRIPTION AND PURCHASE AGREEMENT BY AND BETWEEN THE
     HOLDER HEREOF AND THE COMPANY, DATED JUNE 9, 1997, A COPY
     OF WHICH IS ON FILE AT THE COMPANY'S PRINCIPAL EXECUTIVE
     OFFICE.

     Warrant Legends

     NEITHER THIS WARRANT NOR ANY SHARES OF COMMON STOCK
     ISSUABLE UPON THE EXERCISE OF THIS WARRANT, HAVE BEEN
     REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED
     (THE "SECURITIES ACT") OR QUALIFIED UNDER APPLICABLE
     STATE SECURITIES LAWS.  THIS WARRANT AND THE COMMON STOCK
     ISSUABLE UPON EXERCISE OF THIS WARRANT MAY NOT BE
     OFFERED, SOLD, PLEDGED, HYPOTHECATED OR OTHERWISE
     TRANSFERRED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
     STATEMENT AND QUALIFICATION IN EFFECT WITH RESPECT
     THERETO UNDER THE SECURITIES ACT AND UNDER ANY APPLICABLE
     STATE SECURITIES LAW OR WITHOUT THE PRIOR WRITTEN CONSENT
     OF PERMA-FIX ENVIRONMENTAL SERVICES, INC. AND AN OPINION
     OF PERMA-FIX ENVIRONMENTAL SERVICES, INC.'S COUNSEL, OR
     AN OPINION FROM COUNSEL FOR THE HOLDER HEREOF, WHICH
     OPINION IS SATISFACTORY TO THE COMPANY, THAT SUCH
     REGISTRATION AND QUALIFICATION IS NOT REQUIRED UNDER
     APPLICABLE FEDERAL AND STATE SECURITIES LAWS OR AN
     EXEMPTION THEREFROM.

     NOTWITHSTANDING THE FOREGOING, THE SHARES ISSUABLE UPON
     EXERCISE ARE SUBJECT TO THE REGISTRATION RIGHTS SET FORTH
     IN THAT CERTAIN SUBSCRIPTION AND PURCHASE AGREEMENT
     BETWEEN THE HOLDER HEREOF AND THE COMPANY, DATED JUNE 9,
     1997, A COPY OF WHICH IS ON FILE AT THE COMPANY'S
     PRINCIPAL EXECUTIVE OFFICE.

8.   Miscellaneous.  

     8.1  Amendment; Waiver.  Neither this Agreement nor the
          Warrants shall be changed, modified or amended in any
          respect except by the mutual written agreement of the
          parties hereto.  Any provision of this Agreement or the
          Warrants may be waived in writing by the party which is
          entitled to the benefits thereof.  No waiver of any
          provision of this Agreement or the Warrants shall be
          deemed to, or shall constitute a waiver of, any other
          provision hereof or thereof (whether or not similar), nor
          shall nay such waiver constitute a continuing waiver.

     8.2  Binding Effect; Assignment.  Neither this Agreement nor
          the Warrants, or any rights or obligations hereunder or
          thereunder, are assignable by the Subscriber.

     8.3  Governing Law; Litigation Costs.  This Agreement and its
          validity, construction and performance shall be governed
          in all respects by the internal laws of the State of
          Delaware without giving effect to such State's conflicts
          of laws provisions.  Each of the Company and the
          Subscriber expressly and irrevocably consent to the
          jurisdiction and venue of the federal courts located in
          Wilmington, Delaware.  Each of the parties agrees that in
          the event either party brings an action to enforce any of
          the provisions of this Agreement or to recovery for an
          alleged breach of any of the provisions of this
          Agreement, each party shall be responsible for its own
          legal costs and disbursements during the pendency of any
          such action; provided, however, that after any such
          action has been reduced to a final, unappealable
          judgment, the prevailing party shall be entitled to
          recover from the other party all reasonable, documented
          attorneys' fees and disbursements and court costs from
          the other party.

     8.4  Severability.  Any term or provisions of this Agreement
          or the Warrants which is prohibited or unenforceable in
          any jurisdiction shall, as to such jurisdiction only, be
          ineffective only to the extent of such prohibition or
          unenforceability without invalidating the remaining
          provisions hereof or thereof affecting the validity or
          enforceability of such provision in any other
          jurisdiction.

     8.5  Headings.  The captions, headings and titles preceding
          the text of each or any Section, subsection or paragraph
          hereof are for convenience of reference only and shall
          not affect the construction, meaning or interpretation of

          this Agreement or the Warrants or any term or provisions
          hereof or thereof.

     8.6  Counterparts.  This Agreement may be executed in one or
          more original or facsimile counterparts, each of which
          shall be deemed an original and all of which shall be
          considered one and the same agreement, binding on all of
          the parties hereto, notwithstanding that all parties are
          not signatories to the same counterpart.  Upon delivery
          of an executed counterpart by the undersigned Subscriber
          to the Company, which in turn is executed and delivered
          by the Company, this Agreement shall be binding as one
          original agreement between Subscriber and the Company.

     8.7  Transfer Taxes.  Each party hereto shall pay all such
          sales, transfer, use, gross receipts, registration and
          similar taxes arising out of, or in connection with, the
          transactions contemplated by this Agreement and the
          Warrants (collectively, the "Transfer Taxes") as are
          payable by such party under applicable law, and the
          Company shall pay the cost of any documentary stock
          transfer stamps, if any, to be affixed to the
          certificates representing the Shares and any Warrant
          Shares to be sold.

     8.8  Entire Agreement.  This Agreement, along with the
          Warrants and the Certificate of Designations, merges and
          supersedes any and all prior agreements, understandings,
          discussions, assurances, promises, representations or
          warranties among the parties with respect to the subject
          matter hereof, and contains the entire agreement among
          the parties with respect to the subject matter set forth
          herein and therein.

     8.9  Authority; Enforceability.  The Subscriber is duly
          authorized to enter into this Agreement and to perform
          all of its obligations hereunder.  Upon the execution and
          delivery of this Agreement by the Subscriber, this
          Agreement shall be enforceable against the Subscriber in
          accordance with its terms.

     8.10 Notices.  Except as otherwise specified herein to the
          contrary, all notices, requests, demands and other
          communications required or desired to be given hereunder
          shall only be effective if given in writing, by hand or
          by fax, by certified or registered mail, return receipt
          requested, postage prepaid, or by U. S. Express Mail
          service, or by private overnight mail service (e.g.,
          Federal Express).  Any such notice shall be deemed to
          have been given (i) on the business day actually received

          if given by hand or by fax, (ii) on the business day
          immediately subsequent to mailing, if sent by U.S.
          Express Mail service or private overnight mail service,
          or (iii) five (5) business days following the mailing
          thereof, if mailed by certified or registered mail,
          postage prepaid, return receipt requested, and all such
          notices shall be sent to the following addresses (or to
          such other address or addresses as a party may have
          advised the other in the manner provided in this Section
          8.11:

          If to the Company:  Dr. Louis F. Centofanti
                              Perma-Fix Environmental 
                              Services, Inc.
                              1940 Northwest 67th Place
                              Gainesville, Florida  32653
                              Fax No.: (352) 373-0040

          with copies         Irwin H. Steinhorn, Esquire
          simultaneously      Conner & Winters
          by like means to:   One Leadership Square
                              Suite 1700
                              211 North Robinson
                              Oklahoma City, Oklahoma  73102
                              Fax No.: (405) 232-2695

          If to the           Herbert Strauss
          Subscriber:         RBB Bank Aktiengesellschaft
                              Burgring 16, 8010 Graz, Austria
                              Fax No.: 011-43-316-8072 ext. 392

     8.11 No Third Party Beneficiaries.  This Agreement and the
          rights, benefits, privileges, interests, duties and
          obligations contained or referred to herein shall be
          solely for the benefit of the parties hereto and no third
          party shall have any rights or benefits hereunder as a
          third party beneficiary or otherwise hereunder.

     8.12 Public Announcements.  Neither Subscriber nor any
          officer, director, stockholder, employee, affiliate or
          affiliated person or entity of Subscriber, shall make or
          issue any press releases or otherwise make any public
          statements or make any disclosures to any third person or
          entity with respect to the transactions contemplated
          herein and will not make or issue any press releases or
          otherwise make any public statements of any nature
          whatsoever with respect to the Company without the
          express prior approval of the Company.

     IN WITNESS WHEREOF, the Company and the undersigned Subscriber
have each duly executed this Agreement as of this 9th day of June,
1997.

                                   PERMA-FIX ENVIRONMENTAL
                                   SERVICES, INC.



                                   By  /s/ Louis F. Centofanti
                                     ____________________________
                                         Dr. Louis F. Centofanti
                                         Chief Executive Officer


                                   RBB BANK AKTIENGESELLSCHAFT



                                   By /s/ Herbert Strauss
                                     __________________________
                                         Herbert Strauss
                                         Headtrader






                    SUBSCRIPTION AND PURCHASE AGREEMENT

                                    for

       2,500 SHARES OF SERIES 4 CLASS D CONVERTIBLE PREFERRED STOCK,

                         PAR VALUE $.001 PER SHARE

                                    and

                375,000 WARRANTS, EACH WARRANT TO PURCHASE

                         ONE SHARE OF COMMON STOCK

                                    of

                  PERMA-FIX ENVIRONMENTAL SERVICES, INC.
                         (a Delaware corporation)












                               June 9, 1997