Document KGem2GqrjoqROdR8XRpqDKom6

/ New Plastic Pollutant in Bay, Mothers' Milk By Rrttert Gillette is polychlorinated biphenyl,; under tbe trade name of Aro But scientists here regard ocean hx> grown to nearly or PCB. (dors. He said tjpasmto has such spills as only a small - twice that exacted from nat LA JOLLA -- An alarming It Is used to make plastics,* w* responded to queSUons facet of global marine poQu-: ural sources. new chemical pollutant re synthetic rubber products.{about the chemistry of PCB turn. | The heavy metal has been sembling the insecticide DOT and epoxy adhesives. It ap- and* its *long range e*ff*e`c" ts on Dr. Edward Goldberg, a ' known as a poison for ages, is accumulating in Pacific parently escapes to the envi animal life. professor of chemistry at' "but as yet we don't know and Atlantic Ocean marine ronment m fumes and indus-, PCB is the latest addition Scripps, observes that with! the effects of lead accumula life, according to a scientist trial waste water. Dr. Rise to a growing list of chemi lead, the chlorinated hydro- j tion in ocean food chains.*' from tbe University fornia at Berkeley. of Call* brough said yesterday. PCB haj also been found in cals, generated for the bene fit of man, that are appear carbons, and crude oil, "man; Dr. Patterson said. has left his imprint in aE] One disquieting hint, how The s&bsiance apparently human milk analyzed at the ing in ever larger amounts in parts of the world ocean,1 ever, is that marine plants is playing a role la the rapid liijr of at leari aq --* the peregrin? , fefeon, affiftt may have abet- |ted the disappearance from the Gulf Coast of the brown pelican. . University of Colorado. Though it is not an Insecti cide, PCB belongs to the same chemical family as DDT chlorinated hydrocar bons. . the open ocean -- and in some cases, in the food man takes from the sea. Whole Pfetare As such, tiie presence of PCB in marine life is the which covers two-thirds of tbe earth's surface to an av erage depth of several miles." Lead, used as an anti knock agent* in gasoline, is pouring from tbe world's au and animals -- hold most of tbe lead they .ingest, then pass it on to the next link in the food chain. t I Plastics They are not easily broken newest symptom of "man's tomobiles at a rate of about j down in the environment. chemical invasion of the one mQtion tons a year, Dr.j Swedish scientists first They tend to accumulate in ocean" -- the subject of a Clair Patterson, a geochem-, identified the pollutant in fish taken fitomthe Atlantic. Now fats and oils in living tissue, grim and occasionally out and they can disturb a varie-1 raged discussion among 200 1st at Caltech reported. in Pasadena, { t in recent' months, UC re ty of chemical processes) scientists, here for two days Rain and snow sweep? searchers "have found it in within living cells. at the Scripps Institution of flakes of the automotive fall-j .birds and fish from San Dr. Risebrough said Mon- Oceanography. out from the .air and carry it] Francisco Bay. santo Chemical Company is { To most Californians to- to the sea. . Dr. Robert Risebrough, of apparently the sole producer j day, a polluted sea most like- As a result. Dr. Patterson r the UC Institute of Marine of PCB compounds in the )y means the huge oil slick in said, the. amount of lead in o ^Sriepcao^said the chemical United States, selling them | the Santa Barbara Channel. tiie upper 3000 feet of the 0 j; ?