Document 7eR00mdnvkvo9NX47yRyo7QV

. HeeMbHom'd Mutnljr because PCB* have nasty tendency end up * remain in water, lllw Ue Great Ukci System. and became r they pose a health ol considerable magnitude. In retrospect If* unfortunate that PCBe have such Industrie ' versatility. Since their first commercial production by Monsanto Industrial Chemicals Company iM the oWy US. producer) in IMl. PCBa have been utillaed in an extensive range of product!. Du net ia nearly endless". painta, sealants, printing inks. plastic*, hvdraulic fluids, waxes, adhesives, insulating wire*, and hundreds of other osas at well at their major use as dielectric fluids in capacitor* and transformers. Virtually anything requiring a durable, heat mutant june* wae a candidate for PCB utilisation. In the United States ,1om about I S Wilton pouiuli have been manufactured since 1929. About $00,000 pounds per vear has recently been im ported. About half of Una hat already entered the en vironment: the other half la still waiting Discharge How does it gel into our lahea and rivers? Often, quite direct* , t, i.ok-** nr ><lah*rfO W manufacturing process (the well publicised Hudson River PCB contamination by a General Electric plant Ia a showcase example). Generally (he source of r'CBa Is mere difficult to pinpoint but no less From junk yard disposal sites the PCBa from painta, plastics or abandoned capacitor* and transformer* slowly leak out and percolate through the soils. Time is on PCBa side. Eventually moat. U nol all. o( the chemical will find it* way to water. If net v'ta the soils, than through the at mosphere to ha deposited with rain or snow. In water PCBa may aslat below any detection level. Aa fata would have it though. PCBa are concentrated from the water into the bedim pf tiny pianu and animals known at plankton. At plankton ore con sumed by larger animal* the level of PCBo art biologically magnified through the fend chain. Through tttaprocooa the: cooceairation of PCBo in larger fish would bo many Umaaf times greater than tha concern tratlon In Ihq surrounding; water. Prom ftih and tsafoodn PCBa move to humans, the final link in the food chain. Why Worry? So why worry about a I part, per million (ppmi ceocanttntion of PCBa jft Oak - tho SECOND IN SEKlfcV Persistent PCB's Lose Obscurity Ebtur'.Nm-nelbmtf ........... ............... rclbll]r <"TSZfZXZm r.x.iH inby et Uw ..ter mtin tin? or nmtlnlppm ,ullly W Ldn Itepnte, ui limit b, CwU l 0.pmn H.ro, k.,.. ..lb. u.p.r < N.tlbn.l H.bllb ind Lakbl Rkl.r.iet Or.p , IUUIOI Bipvl Dlmte. ky whl> "< ' II. bmiLl W te "b* W PCB cmunyU.. a mlulH IIICI. ibtt .My .Ilk " coolliwlin. 10m. Mitel. II# llldlbg. aid rminn- tr^d. ... ___^ datioot couM have a ttroag Recent wortoy lnll,K m tkt tbtun f Laky .WdljUt.lthlb.Ul,.r.|. Suynlw.iterytellly tSfl" dJnUltelted mnl. Ib dl.i.mte... li. mm mu .1 Ibte ImybfttM ray*. "l "***> '"W al," id te h.lp p*pl. ynyin In SfSyjLjJ' " " ffl. .l. iM_.i | tp lu.piM ia rCBa induced aavero wane held is Saperior on June 21. tha jj" JJJJL Sl|.rd Oli Innlnw l blchlv.TMullltp.lh..y. Northliid Coll.|. te Aibtebd li "iWWr te bantel Ku SSft " StZTS - "SEiFTStircrtiM u uifnivi nug|i indicatta that only oiight the laivenity el Miaaesow- 10 produce toxicity and Duietk campwo bogtantag 1 "* k"'9 . m. Tueoday. The pahlle ia . invitee to this free program. tl "?f" ^ AddHIaaal lalarmattaa la avallaWe by pheaiag I41B-1IB- taminaUon in humans? A JWfr ,m 7$ survey revealed that of 2.301 samples of fat tissue in In rbcent y.n l virMmMtel eteltemtln h, Ijtel" ffjf-Jf. SKSjTf . lM lh. public ptwnlicn u '> * dr.m.tlc.lly > PCB. - *"" "l polychlorinated Wphwyl. - "te .u Ml Iri. ol PCB.JJ U... ch.mic.^ Lm.ly .1 SUPERIOR. hlS. evening telegram 0 15 >73 haveemorgodfromthaobacwrl- iy of a few chemist's notobooka to bold headlines in both the profeulonal and popular press. with over 1.000 oynthette chemical compound! currently mndWtuM . ... one. Mine imrodmted neb vesr whv has this coloriaM odorins cumpoa^nd lraowutof geuucnni, W*1 ,##m " m nuu-h tmu JJln We. why l t something being don*. *- "f " ,,rl; ",w,, * l5"?"Jj5teW h*P*- Monsanto restricted teal#leMo<l PaC,eBestrtlocaw, oo,yotn,,lWy in Current production io used onnrely in tramformen and capacitor*. Wtdupread uaa of the product is a thing of the P**' Production Halt By the force of law. tha 1977 Tone Substance* Control Act. ail United Suit s production must cease by 1971 and all distribution terminate by mid- 1979. Even after that lime PCBo will he a problem. Beesuaa tha molecules do net oasUy break down, and becauaa the chemical is uaod ia laduirtal product* with long service lives, we can expect to hear about PCBa for 91 to JO more year*. The research and the `are paoaMo) has just b HONS 000834