Sentences with phrase «organohalogens by»
Production of organohalogens by microorganisms has to be taken into account for the study of halogen cycling in atmospheric chemistry as well.
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Volatile organohalogens like chloromethane strongly influence atmospheric chemistry and thereby Earth's climate by causing ozone depletion when released into the atmosphere.
Assumptions that halogens are inert and that most halogenated organic matter in soils is anthropogenic have been challenged by findings of naturally formed organohalogens.
Kristin Møller Gabrielsen of the Norwegian University of Science and Technology in Trondheim and colleagues report in the journal Environmental Research that they examined the liver, muscle and kidney tissues taken from seven polar bears killed by Inuit hunters in East Greenland in 2011 and analysed the effect of more than 50 contaminants in plasma samples from Ursus maritimus, to see what effect organohalogen compounds could have on the bears» thyroid systems.
Some well - known (and very hazardous) examples of organohalogens include PCBs, DDT, and CFCs (chlorofluorocarbons)-- all of which are now globally banned by the United Nation's Persistent Organic Pollutants (POPs) treaty.