The National Geographic Magazine, Volume 210, Issues 4-6National Geographic Society., 2006 - Geography |
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Page 128
... PCBs , once used as electrical insulators and heat - exchange fluids in transformers and other products . PCBs can lurk in the soil any- where there's a dump or an old factory . But some of the largest releases took place along New ...
... PCBs , once used as electrical insulators and heat - exchange fluids in transformers and other products . PCBs can lurk in the soil any- where there's a dump or an old factory . But some of the largest releases took place along New ...
Page 135
PCBS Long banned , they are still around Polychlorinated biphenyls ( PCBs ) were won- der substances . Hard to set aflame , they were common coolants and insulators in electrical systems . Their durability has a dark side : They are ...
PCBS Long banned , they are still around Polychlorinated biphenyls ( PCBs ) were won- der substances . Hard to set aflame , they were common coolants and insulators in electrical systems . Their durability has a dark side : They are ...
Page 140
... PCBs , once so widely used as coolants and electrical insulators that the U.S. was producing 85 million pounds a year in the mid - 1970s . By then , however , the warn- ing signs were hard to ignore . In 1968 thousands of people on the ...
... PCBs , once so widely used as coolants and electrical insulators that the U.S. was producing 85 million pounds a year in the mid - 1970s . By then , however , the warn- ing signs were hard to ignore . In 1968 thousands of people on the ...
Contents
بنک نگارا مليسيا | 24 |
Features | 84 |
VISIONS OF EARTH 14 Bailey Colorado | |
4 other sections not shown
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ADVAIR ADVAIR DISKUS alfuzosin Ambien Ambien CR American animals areas aspirin asthma batteries birds blood pressure body bones brain CAPRIE cells chemicals Christo and Jeanne-Claude climbing clinical clopidogrel clopidogrel bisulfate coins develop DiamondAura Dikika baby dioxins Director dizziness dose drugs embryos Everest expedition gastrointestinal genes gift Gold Günther human images inhalation Iraq Island ivory-billed woodpecker ivorybill Jeanne-Claude Laredo leopard seals living Martha medications million mountain Nanga Parbat National Geographic Society night Nikon Nikon D80 NSAID Ocean pain patients receiving PBDE PCBs penguins PHOTO PHOTOGRAPHS phthalates placebo PLAVIX prescription programs protection receiving PLAVIX REINHOLD MESSNER Research ring risk River salmeterol sanofi-aventis says scientists side effects sleep medicine sleep problems South species SPIRIVA symptoms system disorders tablets taking LUNESTA talk tell your doctor toxic trees trial UROXATRAL Vice President wildlife zolpidem