Perma-Fix Environmental Services, Inc. Invites You to Join Its First Quarter Conference Call on the Web

ATLANTA, May 17 /PRNewswire-FirstCall/ -- In conjunction with Perma-Fix Environmental Services, Inc.'s (Nasdaq: PESI) First Quarter earnings release on the morning of Friday, May 17, 2002, you are invited to listen to its conference call that will be broadcast live over the Internet on Friday, May 17, 2002 at 2:00 p.m. EDT with Dr. Louis F. Centofanti, Chairman and CEO, and Richard T. Kelecy, Vice President and CFO, of Perma-Fix Environmental Services, Inc.

     What:     Perma-Fix Environmental Services, Inc. Presents First Quarter
               2002 Operating Results

     When:     Friday, May 17, 2002 2:00 p.m. EDT

     Where:    http://www.videonewswire.com/event.asp?id=5270

     Dial-in
     Numbers:  U.S. Calls:              800-446-4472
               International Calls:     416-695-5259

     How:      Live over the Internet -- Simply log on to the web at the
               address above

     Contact:  Richard T. Kelecy at +1-352-395-1351

Perma-Fix Environmental Services, Inc. is a national environmental services company, providing unique mixed waste and industrial waste management services. The Company has increased its focus on the nuclear services segment, which 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 services 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 nine major waste treatment facilities across the country.

If you are unable to participate during the live webcast, the call will be archived for 90 days on www.prnewswire.com .

(Minimum Requirements to listen to broadcast: The Windows Media Player software, downloadable free from http://www.microsoft.com/windows/windowsmedia/EN/default.asp , and at least a 28.8 Kbps connection to the Internet. If you experience problems listening to the broadcast, send an email to isproducers@prnewswire.com .)

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SOURCE Perma-Fix Environmental Services, Inc.
Web site: http: //www.perma-fix.com
CONTACT: Richard T. Kelecy, Vice President and CFO of Perma-Fix Environmental Services, Inc., +1-352-395-1351
Audio: http: //www.videonewswire.com/event.asp?id=5270