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 AN OPINION OF PERMA-FIX
ENVIRONMENTAL SERVICES, INC.'S COUNSEL THAT SUCH REGISTRATION AND
QUALIFICATION IS NOT REQUIRED UNDER APPLICABLE FEDERAL AND STATE
SECURITIES LAWS OR AN EXEMPTION THEREFROM IS AVAILABLE.

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

                 COMMON STOCK PURCHASE WARRANT CERTIFICATE

                            Dated: June 9, 1997

         One Hundred Eighty-Seven Thousand Five Hundred (187,500)

                           Warrants to Purchase 

         One Hundred Eighty-Seven Thousand Five Hundred (187,500)

             Shares of Perma-Fix Environmental Services, Inc.

                  Common Stock, $.001 Par Value Per Share

     VOID AFTER 5:00 P.M., UNITED STATES EASTER DAYLIGHT SAVINGS TIME

                                    on

                               June 9, 2000

     PERMA-FIX ENVIRONMENTAL SERVICES, INC., a Delaware corporation
(the "Company"), hereby certifies that RBB BANK AKTIENGESELLSCHAFT,
organized under the laws of Austria, and its permissible successors
and assigns (the "Warrant Holder" or "Holder"), for value received,
is entitled to purchase from the Company at any time after 
December 31, 1997, until 5:00 p.m., Eastern Daylight Savings Time on 
June 9, 2000, up to an aggregate of one hundred eighty-seven thousand 
five hundred (187,500) shares (the "Shares" or "Warrant Shares") of 
the Company's common stock, par value $.001 per share (the "Common
Stock") at an exercise price equal to U. S. $2.10 per share (the
"Per Share Exercise Price").

1.   Exercise of Warrant.  Upon presentation and surrender of this
Common Stock Purchase Warrant Certificate ("Warrant Certificate" or
"this Certificate"), with the attached Purchase Form duly executed

and completed, at the principal office of the Company at
1940 Northwest 67th Place, Gainesville, Florida 32606-1649, together
with cash or a cashier's or certified check payable to the Company
in the amount of the Per Share Exercise Price multiplied by the
number of Warrant Shares being purchased (the "Aggregate Exercise
Price"), the Company, or the Company's transfer agent, as the case
may be, shall deliver to the Warrant Holder hereof, certificates of
Common Stock which, in the aggregate, represent the number of
Warrant Shares being purchased.  All or less than all  of the
Warrants represented by this Certificate may be exercised and, in
case of the exercise of less than all, the Company, upon surrender
hereof, will deliver to the Warrant Holder a new Warrant Certificate
or Certificates of like tenor and dated the date hereof entitling
said Warrant Holder to purchase the number of Warrant Shares
represented by this Certificate which have not been exercised and
to receive the Registration Rights set forth in Section 8 below (to
the extent such rights have not already been exercised) with respect
to such Warrant Shares.

2.   Exchange and Transfer.  This Certificate, at any time prior to
the exercise hereof, upon presentation and surrender to the Company,
may be exchanged, alone or with other certificates of like tenor
registered in the name of the same Warrant Holder, for another
Certificate or Certificates of like tenor in the name of such
Warrant Holder exercisable for the aggregate number of Warrant
Shares as the Certificate or Certificates surrendered.

3.   Rights and Obligations of Warrant Holder of this Certificate. 
The Holder of this Certificate shall not, by virtue hereof, be
entitled to any rights of a stockholder in the Company, either at
law or in equity; provided, however, that in the event any
certificate representing shares of Common Stock or other securities
is issued to the Holder hereof upon exercise of some or all of the
Warrants evidenced by this Warrant Certificate, such Holder shall,
for all purposes, be deemed to have become the Holder of record of
such Common Stock on the date on which this Certificate, together
with a duly executed Purchase form, was surrendered and payment of
the Aggregate Exercise Price was made pursuant to the terms hereof,
irrespective of the date of delivery of such share certificate.  The
rights of the Holder of this Certificate are limited to those
expressed herein and the Holder of this Certificate, by his
acceptance hereof, consents and agrees to be bound by, and to comply
with, all of the provisions of this Certificate, including, without
limitation, all of the obligations imposed upon the Warrant Holder
contained in this Warrant Certificate.  In addition, the Warrant
Holder, by accepting this Certificate, agrees that the Company may
deem and treat the person in whose name this Certificate is
registered on the books of the Company as the absolute, true and
lawful owner for all purposes whatsoever, and the Company shall not
be affected by any notice to the contrary.


4.   Common Stock.  

     4.1  The Company covenants and agrees that all shares of
          Common Stock which may be acquired by the Holder under
          this Warrant Certificate will, when issued and upon
          delivery, be duly and validly authorized and issued,
          fully paid and nonassessable, and free from all stamp
          taxes, liens, and charges with respect to the purchase
          thereof.

     4.2  The Company covenants and agrees that it will, at all
          times, reserve and keep available an authorized number of
          shares of its Common Stock and other applicable
          securities sufficient to permit the exercise in full of
          all outstanding options, warrants and rights, including
          the Warrants; and, if at the time the number of
          authorized but unissued shares of Common Stock shall not
          be sufficient to effect the exercise of all of the
          Warrants covered by this Warrant Certificate, the Company
          will take such corporate action at its next annual
          meeting of stockholders as may be necessary to increase
          its authorized but unissued shares of Common Stock to
          such number of shares as shall be sufficient for such
          purpose, including, without limitation, engaging in
          reasonable efforts to obtain the requisite stockholder
          approval of any necessary amendment to its Certificate of
          Incorporation.

5.   Issuance of Certificates.  As soon as possible after full or
partial exercise of this Warrant Certificate, the Company, at its
expense, will cause to be issued in the name of, and delivered to,
the Holder of this Warrant Certificate, a certificate or
certificates for the number of fully paid and nonassessable shares
of Common Stock to which that Holder shall be entitled on such
exercise.  No fractional shares will be issued on exercise of this
Warrant.  If on any exercise of this Warrant a fraction of a share
results, the Company will pay the cash value of that fractional
share, calculated on the basis of the Per Share Exercise Price.  All
such certificates shall bear a restrictive legend to the effect
that, subject to the provisions of Section 8 below, the Shares
represented by such certificate have not been registered under the
Securities Act of 1933, as amended, or qualified under any state
securities laws and the Shares may not be sold or transferred in the
absence of such registration and qualification or an exemption
thereof, such legend to be substantially in the form set forth in
Section 6.2 of this Warrant Certificate.

6.   Disposition of Warrants or Shares.

     6.1  The Holder of this Warrant Certificate, by its acceptance
          thereof, agrees that (a) no public distribution of

          Warrants or Shares will be made in violation of the
          provisions of the Securities Act of 1933, as amended, and
          the Rules and Regulations promulgated thereunder
          (collectively, the "Act"), and (b) during such period as
          delivery of a prospectus with respect to Warrants or
          Shares may be required by the Act, no public distribution
          of Warrants or Shares will be made in a manner or on
          terms different from those set forth in, or without
          delivery of, a prospectus then meeting the requirements
          of Section 10 of the Act and in compliance with all
          applicable state securities laws.  The holder of this
          Warrant Certificate and each transferee hereof further
          agrees that if any distribution of any of the Warrants or
          Shares is proposed to be made by them otherwise than by
          delivery of a prospectus meeting the requirements of
          Section 10 of the Act, such action shall be taken only
          after receipt by the Company of an opinion of its
          counsel, to the effect that the proposed distribution
          will not be in violation of the Act or of applicable
          state law.  Furthermore, it shall be a condition to the
          transfer of the Warrants that any transferee thereof
          deliver to the Company his or its written agreement to
          accept and be bound by all of the terms and conditions
          contained in this Warrant Certificate.

     6.2  By acceptance hereof, the Holder represents and warrants
          that this Warrant Certificate is being acquired, and all
          Warrant Shares to be purchased upon the exercise of this
          Warrant Certificate will be acquired, by the Holder
          solely for the account of the Holder and not with a view
          to the fractionalization and distribution thereof, and
          will not be sold or transferred except in accordance with
          the applicable provisions of the Act and the rules and
          regulations promulgated thereunder, and the Holder agrees
          that neither this Warrant Certificate nor any of the
          Warrant Shares may be sold or transferred except under
          cover of a registration statement under the Act which is
          effective and current with respect to such Warrant Shares
          or pursuant to an opinion of counsel reasonably
          satisfactory to the Company that registration under the
          Act is not required in connection with such sale or
          transfer.  Any Warrant Shares issued upon exercise of
          this Warrant shall bear a legend to the following effect:

               The securities represented by this certificate
               have not been registered under the Securities
               Act of 1933, as amended (the "Act"), or
               qualified under applicable state securities
               laws, and are restricted securities within the
               meaning of the Act.  Such securities may not be
               sold or transferred, except pursuant to a

               registration statement under such Act and
               qualification under applicable state securities
               laws which are effective and current with
               respect to such securities or pursuant to an
               opinion of counsel reasonably satisfactory to
               the issuer of such securities that registration
               and qualification are not required under
               applicable federal or state securities laws or
               an exemption is available therefrom.

7.   Warrant Holder Not Shareholder.  This Warrant Certificate shall
not be deemed to confer upon the Holder any right to vote the
Warrant Shares or to consent to or receive notice as a shareholder
of the Company as such, because of this Warrant Certificate, in
respect of any matters whatsoever, or any other rights or
liabilities as a shareholder.

8.   Registration Rights.  The Company agrees that the Warrant
Shares shall have those registration rights set forth in Section 5
of that certain Subscription and Purchase Agreement by and between
the Company and the Warrant Holder dated June 9, 1997 (the
"Subscription Agreement").  It is expressly acknowledged and agreed
that all references to Warrant Shares are to shares of Common Stock
issuable upon the exercise of this Warrant Certificate, in whole or
in part, from time to time and at any time.

9.   Anti-Dilution.  

     9.1  If the Company at any time, or from time to time, while
          this Warrant Certificate is outstanding shall declare or
          pay, without consideration, any dividend on the Common
          Stock payable in Common Stock, or shall effect a
          subdivision of the outstanding shares of Common Stock
          into a greater number of shares of Common Stock (by stock
          split, reclassification or otherwise than by payment of
          a dividend in Common Stock or in any right to acquire
          Common Stock), or if the outstanding shares of Common
          Stock shall be combined or consolidated, by
          reclassification or otherwise, into a lesser number of
          shares of Common Stock, then the number of shares of
          Common Stock issuable upon the exercise of this Warrant
          Certificate or the Exercise Price shall be appropriately
          adjusted such that immediately after the happening of any
          such event, the proportionate number of shares of Common
          Stock issuable immediately prior to the happening of such
          event shall be the number of shares of Common Stock
          issuable subsequent to the happening of such event.

     9.2  In case of any consolidation or merger of the Company in
          which the Company is not the surviving entity, or in case
          of any sale or conveyance by the Company to another

          entity of all or substantially all of the property of the
          Company as an entirety or substantially as an entirety,
          the Holder shall have the right thereafter, upon exercise
          of this Warrant, to receive the kind and amount of
          securities, cash or other property which the Holder would
          have owned or been entitled to receive immediately after
          such consolidation, merger, sale or conveyance had this
          Warrant been exercised in full immediately prior to the
          effective date of such consolidation, merger, sale or
          conveyance, and in any such case, if necessary,
          appropriate adjustment shall be made in the application
          thereafter of the provisions of this Section 9 with
          respect to the rights and interests of the Holder to the
          end that the provisions of this Section 9 thereafter
          shall be correspondingly applicable, as nearly as may be,
          to such securities and other property.

10.  Redemption at Corporation's Option.  At any time, and from time
to time, the Company may, at its sole option, but shall not be
obligated to, redeem this Warrant at a redemption price of one cent
($0.01) per Warrant Share covered by this Warrant (the "Redemption
Price").  The Company may exercise its option to redeem the Warrant
only if (a) the Warrant Shares are covered by a registration
statement filed with the U. S. Securities and Exchange Commission
which is effective as of the date the Redemption Notice (as defined
below) and (b) the average closing bid quotation of the Company's
Common Stock as reported on the National Association of Securities
Dealers Automated Quotation system ("NASDAQ"), or the average
closing price if listed on a national securities exchange for the
ten (10) trading days immediately prior to the date of the
Redemption Notice (as defined below) is more than $3.50.

     10.1 Mechanics of Redemption.  Thirty (30) days prior to any
          date stipulated by the Company for the redemption of the
          Warrants (the "Redemption Date"), a written notice (the
          "Redemption Notice") shall be mailed to each Holder of
          record.  The Redemption Notice shall state: (a) the
          Redemption Date of the Warrants, (b) the number of
          Warrants to be redeemed from the Holder to whom the
          redemption notice is addressed, (c) instructions for
          surrender to the Company in the manner and at the place
          designated of the Warrant Certificate or Certificates
          representing the Warrants to be redeemed from such
          Holder, and (d) as to how to specify to the Company the
          number of Warrants to be exercised into Warrant Shares,
          as provided in Sections 1 and 10.2 hereof.

     10.2 Exercise Upon Redemption.  Upon receipt of the Redemption
          Notice, the Holder of this Warrant shall have the option,
          at its sole election, to specify what portion of its
          Warrants called for redemption in the Redemption Notice

          shall be redeemed as provided in this Section 10 or
          exercised into Warrant Shares in the manner provided in
          Section 1 hereof.

11.  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, 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 (a) on the business day
actually received if given by hand or by fax, (b) on the business
day immediately subsequent to mailing, if sent by U.S. Express Mail
service or private overnight mail service, or (c) 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 10):

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


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

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

12.  Governing Law.  This Warrant Certificate and all rights and
obligations hereunder shall be deemed to be made under and governed
by the laws of the State of Delaware without giving effect to such
State's conflict of laws provisions.  The Holder hereby irrevocably
consents to the venue and jurisdiction of the federal courts located
in Wilmington, Delaware.


13.  Successors and Assigns.  This Warrant Certificate shall be
binding upon and shall inure to the benefit of the parties hereto
and their respective successors and assigns.

14.  Headings.  The headings of various sections of this Warrant
Certificate have been inserted for reference only and shall not be
a part of this Agreement.

     IN WITNESS WHEREOF, the Company has caused this Warrant
Certificate to be duly executed, manually or by facsimile, by one
of its officers thereunto duly authorized.

     Dated as of June 9, 1997.

                                   PERMA-FIX ENVIRONMENTAL
                                   SERVICES, INC.



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

                           ELECTION TO PURCHASE

                   To Be Executed by the Warrant Holder
                   in Order to Exercise the Common Stock
                       Purchase Warrant Certificate

     The undersigned Holder hereby irrevocable elects to exercise
___________ of the Warrants represented by this Common Stock Warrant
Certificate, and to purchase the shares of Common Stock issuable
upon the exercise of such Warrants and requests that certificates
for securities be issued in the name of:

               _____________________________________________
                  (Please type or print name and address)

              ______________________________________________

              ______________________________________________

              _______________________________________________
                         (Social Security Number)

and delivered to ___________________________________________________

____________________________________________________________________

_________________________________________________________________
                  (Please type or print name and address)

and, if such number of Warrants shall not be all the Warrants
evidenced by this Common Stock Warrant Certificate, that a new
Common Stock Warrant Certificate for the balance of such Warrants
be registered in the name of, and delivered to, the Holder at the
address stated below.

     In full payment of the purchase price with respect to the
Warrants exercised and transfer taxes, if any, the undersigned
hereby tenders payment of $_______________ by cash, cashier's check
or certified check payable in United States currency to the order
of Perma-Fix Environmental Services, Inc.


     Dated:  __________________.             ______________________


                                             ______________________
                                                          (Address)

                                             ______________________
                                             (Social Security or 
                                             Federal I. D. Number)

                                             ______________________
                                             Signature(s) guaranteed