Document ZJgrmoKbzJR1XGkQBOvmmzoDL

1 4T-6SF TECHNICAL SURVEY vnu. JUN 10 1972 r cufftD "I i `BACOWSJ 1 !a>o Trout, thermal pollution and ATP: Bur of Fisheries end Wildlife tests suggest that current EPA limits on thermal water pollution may be too high. For iteelhead trout, an increase in adenosine triphosphatase activity was prevented or reversed if the trout were exposed to water above 12C. Frii with diminished ATP activity die in sea water (7b).......Recent research on the pollution effects of PCBs: a trace contaminant identified in 1 lot of Aroclor-1254. a commercial poly-chlorinated bipheny] made by Monsanto, may be a tetrachlorodibenzofuran, a toxic substance already found in some European-made PCBi. PCBs mimic some characteristics of DDT but differ in that they do not seem to produce thin eggshells in Japanese quail, etc (Chem & Engrg News, 4/17 p 27-8)// HONS 206920