Perma-Fix Considers Possible Sale of Its Industrial Segment

      ATLANTA, May 18 /PRNewswire-FirstCall/ -- Perma-Fix Environmental
Services, Inc. (Nasdaq: PESI) (BSE: PESI; Germany: PES.BE) today announced that
its Board of Directors has authorized management to consider the possible sale
of all or a part of its Industrial Segment. The Company has received certain
offers to buy all, or a part of, its Industrial Segment and anticipates
receiving additional offers in the near future.

      Dr. Louis F. Centofanti, Chairman and Chief Executive Officer, stated,
"While the Industrial Segment may hold untapped potential, we believe the
Nuclear Segment represents the true long-term growth driver for our business.
First, we see the Department of Energy increasing its allocation for the
treatment of low-level mixed waste at nuclear weapons facilities across the
country in the coming years. Second, with our recent definitive agreement to
acquire the PEcoS nuclear waste facility, located adjacent to the Hanford
weapons facility, we see enormous opportunities for the treatment of nuclear
waste at the Hanford site, which by nearly all estimates, represents the largest
environmental clean-up project in the history of the nation. Third, we recently
completed construction on our M&EC south bay special waste processing area and
have begun treatment of highly specialized wastes during the second quarter. The
new south bay enables Perma-Fix to enter an untapped market treating higher
level radioactive mixed waste and we believe we are the only company with the
licenses and technology to treat these complex waste streams. Given these
attractive growth opportunities and the heightened interest in our industrial
assets, we made the decision to explore the possible sale of our Industrial
Segment."

      The Industrial Segment's consolidated revenues for 2006 and first quarter
2007 were approximately 40.0% and 35.9% of the Company's consolidated revenues
for 2006 and the first quarter 2007, respectively. For 2006 and the first
quarter 2007, the Company's Industrial Segment, on a consolidated basis, had net
losses of approximately $2.0 million and $1.7 million, respectively, as compared
to the Company's consolidated net income of $4.7 million for 2006 and net loss
of $1.1 million for the first quarter 2007. The Company's Industrial Segment
manages hazardous and non-hazardous waste and has TSD facilities located in
Dayton, Ohio; Orlando, Florida; Ft. Lauderdale, Florida; Tulsa, Oklahoma;
Valdosta, Georgia; and Baltimore, Maryland.

      This press release contains certain "forward-looking statements" which are
based largely on the Company's expectations and are subject to various business
risks and uncertainties, certain of which are beyond the Company's control.
Forward-looking statements include, but are not limited to, receipt of
additional offers to purchase our Industrial Segment; the Nuclear segment
represents the true long-term growth driver for our business; Department of
Energy increasing its allocation for the treatment of mixed waste at nuclear
weapons facilities; enormous opportunities for the treatment of nuclear waste at
the Hanford facility; and treatment of higher level mixed waste in the newly
constructed south bay at our M&EC facility. The forward-looking statements are
intended to qualify for the safe harbors from liability established by the
Private Securities Litigation Reform Act of 1995. While the Company believes the
expectations reflected in this news release are reasonable, it can give no
assurance such expectations will prove to be correct. There are a variety of
factors which could cause future outcomes to differ materially from those
described in this release, including, without limitation, future economic
conditions; industry conditions; competitive pressures; and our ability to
market our Industrial Segment to obtain the price we deem appropriate and
negotiation of an agreement. The Company makes no commitment to disclose any
revisions to forward-looking statements, or any facts, events or circumstances
after the date hereof that bear upon forward- looking statements.

      Please visit us on the World Wide Web at http://www.perma-fix.com.

Contacts:

Dr. Louis F. Centofanti, Chairman and CEO
Perma-Fix Environmental Services, Inc.
(770) 587-9898

David K. Waldman-US Investor Relations
Crescendo Communications, LLC
(212) 671-1020 x101

Herbert Strauss-European Investor Relations
herbert@eu-ir.com
+43 316 296 316