WASHINGTON ) ) DISTRICT OF COLUMBIA } ss; DR. THOMAS B. COCHRAN, being first duly sworn, devoses and says: l. My backerzind and professional qualifications relevant to the substance c= this affidavit include the following: (a) Since April 1973, I have been a staff scientist at Natural Resources Defense Council (NRDC). My work at NRDC has been primarily related +o the U.S. civilian nuclear power industry. With Dr. Arthur 2. Tamplin I have written Radiation Standards for Hot Particles, February 14, 1974 (a report on the inadequacy of existing radiation protection standards related to internal exvosure of man ts insoluble varticles of plutoniumand other alpha-enizczing hot s:cticles), anc Radiation Standards for cecucational Uncle Sodv Ex-7s5ure, September 25, 1975. retorts ar2 277acned as Einisits A and B, rasséctively. reports served as tne basi: for NRDC's setitions These These to the U.S. A.E.C., U.S.E.7.A. and U.S. ‘iuclear Regulatory Commission to amend their radiation prot:iction standards as more fully described