Perma-Fix Joins New Russell Microcap Index

ATLANTA, July 18 /PRNewswire-FirstCall/ -- Perma-Fix Environmental Services, Inc. (Nasdaq: PESI) (BSE: PESI) (Germany: PES.BE) today announced it joined the Russell Microcap Index.

The newly launched Russell Microcap Index, which debuted on July 1, is comprised of the smallest 1,000 securities in the small-cap Russell 2000 Index along with the next smallest 1,000 companies, based on a ranking of all U.S. equities by market capitalization. The index offers portfolio managers and other investors a comprehensive, unbiased barometer to compare their performance against the genuine microcap marketplace of stocks. Russell recently posted the complete index membership list at http://www.russell.com/US/Indexes .

Dr. Louis F. Centofanti, Chairman and CEO, commented, "We are pleased with our inclusion in this new index. Our inclusion will help generate greater interest in our stock at an institutional level."

Russell indices are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. Companies on the list represent more than $2.5 trillion in assets. Investment managers who oversee these funds purchase shares of member stocks according to that company's weighting in the particular index.

Perma-Fix Environmental Services, Inc. is a national environmental services company, providing unique mixed waste and industrial waste management services. The Nuclear Segment provides radioactive and mixed waste treatment services to hospitals, research laboratories and institutions, numerous federal agencies including the Departments of Energy and Defense and nuclear utilities. The Industrial Segment provides hazardous and non-hazardous waste treatment services for a diverse group of customers including Fortune 500 companies, numerous federal, state and local agencies and thousands of smaller clients. The Company operates eleven major waste treatment facilities across the country.

This press release contains "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, the information concerning statements that our inclusion in the Russell Microcap Index will generate greater interest in our stock at an institutional level. These 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, changes in the index or policies of the index, market conditions, industry changes, Company performance or changes in governmental policies, laws or regulations. 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 .

SOURCE  Perma-Fix Environmental Services, Inc.
    -0-                             07/18/2005
    /CONTACT:  Dr. Louis F. Centofanti, Chairman and CEO, Perma-Fix
Environmental Services, Inc., +1-404-847-9990; or J. Todd Atenhan or Valerie
Kimball, vkimball@epochfinancial.com, both of EPOCH Financial Group, Inc.,
+1-888-917-5109; or Herbert Strauss, European investor relations,
+011-43-316-296-316, or herbert@eu-ir.com, all for Perma-Fix/
    /Web site:  http://www.perma-fix.com
                http://www.russell.com/US/Indexes /
    (PESI)

CO:  Perma-Fix Environmental Services, Inc.; Russell
ST:  Georgia
IN:  ENV
SU:

DS-AC
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7472 07/18/2005 11:02 EDT http://www.prnewswire.com