Document 15LoKnZdjx89p1Qzp1KL18m5Z

THE CAPITAL TIMES MADISON, WISC. D. 46,029 MAY 7 1969 iiiulison Chemist Qmvsiiiins Analysis Is Ming The KeiB Fov By WIIITNKY GOl.'U) naneing DDT'* defense here. Jidentified ns DDE, is biill nitderijieiik." lOf The Citplftil Times Siaff) | On first analysis (he fi*h cM*,nnsilysi$, he said.) I i Yannfleone asked whether The possibility Ihnl DDT rcsi-ilained 14 lo IS parts-por-million' Ccoii Raid his division had.Coon c<ml<| be vvvUdn that tbt 'dues found In fish may have V DDT mid two of its nwtnbl-'doiw up to 30,000 pesticide resi-Dear Creek salmon was not sent .been confused with those of mi-'ilex, ODD m\d DDE, he said.jtiue analyses on lish ami wiltl-lto the tab in n plnMIc bag, which other compound was raised hereout under further analysis, "wedi/e, and first became aware of [would have introduced more in* ^"Tuesd' ay `by'a .Ma.dis.on.c.he.m.ist,c'h..a..d....I.n..d..ic..a..t.i.o..n..s...t.hat pari .( .t.h&i'thc role ol PCtt's ill i1e0o( 7, wljcn;teriercnce Irom, l-'DBs. Conn [atthe slate De.partment of Nalu-iD...D...D a..n..d.....DDT. was Indced/hc c..o.m.. rp_o_u_n_d_s w__e_re idi entified said he couldn't be sure, but rut Hesoure.es' IwHiings on pe-ipcnV (Total of the two known[ns possible Interferences byjthm VMRK asks that "anything lllion lo ban conlinucd use of'pcsticidc residues was then re-{Swedish and British scientists, having to do with residue aiialy- DDT h> Wisconsin. hluced Irom* 5.13 ppm to 1.61| "We found evidence," he said,[sis not be submitted in n public The witness was.JCwiU)U5Ji;pj)m. Tito remaining ,9.64 ppm./'tlwi i'CB's were tmdoubtcillyibag." Coon. bend of the chemistry do- {presort in some of mir an pirlhienl hi the Wisconsin Al alyses." umni Reseat eh FflOniffinflirTn-! stltutdr'fh^ 'Ooon wns uImTohI the stand todr.y for crotr-exomi-, nation, as (he chemical Industry conlinucd its defense of the controvcrBli\ljicRticidc. The thrust of his testimony was (hoi "polychlorinnled byitfienyls*'--or `IXTT'p--plasflefc I The chemiM's testimony enmej under sharp attack this morn ing, however, under cross-exam-| ination by Victor J. Yannacone, ;Ncw York attorney for the con servation groups who have peti tioned for a ban on (tic pesticide )tn Wisconsin. ^ ! - tag compounds used in paints, tires, lipsticks and oilier prod ucts, behave In Initial pesticide residue analyses much like DDT and Its breakdown products. The bone of conlvntion was a long sbeel of paper with wavy lines--product of a "gas chro matograph/' 'the instrument used to tinalyxe pesticide resi Coon said that WARP had aid slyr.od last (all a coho salmon! Itijkcn from Lake Michigan near Bear Creek, at the request. o( the National Agricultural Chew* ickls Association, which ^ Is. fl-; dues. The pesticides produce peaks and valleys on the paper! (a chromatogram), in somewhat ,the manner that a seismograph1 (leaves earthquake (racings. i Ynnnncone noted thm the size)) of sample helped dclerminc[ what kind of peak appearod on the chromatograph, and that1 AVARK chemists in one nnalysisi jhod used PCB samples much|) larger than those of the pesti-l cldc. . it I "At similar levels/' he * tc.harged, "(the PCB) peak l (would ho statistically Insipilfi- i leant compared with the DDE i HONS 031612