(Phys.org)—Many researchers have reported improvements in LED technology by enhancing the properties of the LED itself. But the packaging that secures and protects the LED also impacts its overall performance. In a new ...
A trio of researchers at Chemistry Matters Inc., in Canada, has found evidence suggesting that more polychlorinated biphenyls (PCBs) are being generated today than before they were banned.
A team of zoologists, environmental scientists, marine biologists and life scientists affiliated with several institutions in Ireland and the U.K. has found that despite international bans, persistent organic pollutants (POPs) ...
PCB has been banned in most countries since the 1970s, but that doesn't mean it no longer exists. Now, deep-sea researchers report that they have found PCB at the bottom of the Atacama Trench in the Pacific Ocean.
Earth Sciences
Apr 17, 2023
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63
Polychlorinated biphenyls (PCBs) have been widely used in industrial and commercial products including plastics, paints, electronic equipment and insulating fluids. Their manufacture was extensively banned from the late 1970s ...
Biochemistry
Nov 22, 2022
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25
A new University of Toronto study is using polar bear scat to reveal how certain chemical contaminants can become trapped—and build up—inside the body.
Plants & Animals
May 30, 2022
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56
A new study from McGill University suggests that some Icelandic killer whales have very high concentrations of PCBs (polychlorinated biphenyls) in their blubber. But it seems that other orcas from the same population have ...
Ecology
May 7, 2021
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86
A team of experts convened by Professor Sir Charles Godfray of the Oxford Martin School has found evidence that suggests humans are dumping more chemical waste into the environment than can be tested for its impact. In their ...
Dolphins in the northern Adriatic contain high levels of PCBs – highly toxic chemicals banned in the 1970s and 1980s – and are passing the pollutant to their young, according to new research led by a marine scientist ...
Plants & Animals
Dec 10, 2018
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349
Using a new approach to measure chemical contaminants in polar bears, scientists from Canada and the United States found a large variety of new chlorinated and fluorinated substances, including many new polychlorinated biphenyl ...
Ecology
Dec 3, 2018
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