Document Qq3O8RpKB6RD53rrR03DLqko

MILWAUKEE JOURNAL MILWAUKEE, WISC. D. 363,795 SUN. 542,109 APR 3 0 1969, I DDT Level in Fish Safe, Toxicologist Says . By BICHARD C. KIENITZ country was completely safe lar tests for DDT effect on en lion is sufficient to get rid of Journal Madison Bureau for the general population. He zymatic functions in the liver. your mustache and raise your , Madison, Wis. - A total diet said a ban would have a harm In fish eating birds, DDT in the voice a few notches and pre-. : of Wisconsin fish would be ful effect in countries where it liver was shown to have chide you fathering other thaa perfectly safe as far as DDT is was used for malaria control. He described experiments caused a breakdown of hor mones that controlled the a few freaks," he said. . "Can you tell me a simple concerned, a leading toxicolo with volunteer prisoners, wno strength of eggshells and even student's test is sufficient to gist declared Tuesday at the were injected with amounts of tually reduced reproduction. measure'relevance?" Yanna I Widely watched hearing on DDT for up to 27 months. Hayes said there had been cone asked. '. whether the pesticide can be Tests also were made on men no clues at that time (1956-'67) Hayes said: "Without doing , banned under state pollution who had worked in a DDT that would have caused him to any math at all, in view of the laws. plant for up to 19 years. check for that. population explosion. I'm able , Dr. Wayland J. Hayes, jr., a physician and professor of biochemistry at Vanderbilt university, Nashville, Ten n., was the first witness presented in defense of DDT. He present ed the case of DDT manufac turers. Called Safe Previously, 1,800 pages of testimony and exhibits were given in 13 hearing sessions by persons who would ban the pesticide. Hearings are being conducted by Maurice Van Susteren, natural resources de, partment hearing examiner. Hayes said that in his opin Prisoner Tests In neither study, he said, was there an observable effect on the health of the men and their work. Their nervous sys tems, where DDT poisoning would show up first, were not damaged, he said. He said the prisoners were injected with DDT at rates 900 to 1,000 times greater than an ordinary person's intake. He said the human body eventual ly built up a balance point at which it excreted DDT at the same rate it took it in. 1 Asked about the safety of Yannacone, attorney for to deduce that people appear conservation groups seeking a to have an adequate value" of DDT ban, implied that the the hormone. , tests might not have been ade quate in connection with the effect on the hormone testos terone. "Assume that the level of testosterone sufficient for male functions is on the order of five parts per billion and levels below two parts per bil-' ion DDT as now used^inttys Lake Michigan coho salmon which were found to have 19 parts per million of DDT, Hayes said the average expo-, sure to plant workers in his3 tests was 17 to 18 milligrams a j day, with no harmful effects.; Milligrams per kilogram is the same as parts per million,1 Mayes said. He said that the , average person ate a kilogram of solid food a day. j Fish Called Safe .} He noted that fish in Wis-1 k consin inland lakes were re- j j ported to have only 6 to 7; 7 parts per million of DDT.' f Hayes studied zoology and; physiological chemistry at the .' University of Wisconsin in the' * 1940s before obtaining a medi-' cal degree at the University of ` Virginia in 1946. From 1949 to. 1968, when he retired, he was " c h i e f of toxicology for the. United States public health service. He testified for a DDT task force of the National Agricul tural Chemicals association. ( Under cross examination by A tty. Victor J. Yannacone, lHayes said.he made no particu- DSW 201012 STLCOPCB4059076