https://www.ehn.org/air-pollution-in-the-great-lakes-2659413909.html
"Some once-common insecticides linked to harmful human health impacts are
disappearing from the air in the Great Lakes region, though others still
persist, according to new research.
Some widely used insecticides are persistent in the environment, meaning they
don’t break down quickly and can build up, causing problems for human and
environmental health. Many insecticides used in agriculture or pest control in
buildings are considered persistent and remain in the atmosphere, water and
soil for years or even decades. But new research shows that in the Great Lakes
region, at least three persistent insecticides are nearly eliminated, mostly as
a result of regulatory action taken decades ago. Scientists say the results
show the importance of swift action to ban the use of new persistent chemicals.
“For once we can report something positive,” Marta Venier, assistant professor
of environmental chemistry at Indiana University's O'Neill School of Public and
Environmental Affairs, told
Environmental Health News (EHN). “A few of the
chemicals we've been measuring for a long time are well underway to being
eliminated from the atmosphere.”
Venier and her colleagues used atmospheric data from a binational monitoring
program, run by American and Canadian researchers, which has tracked chemicals
in the atmosphere since 1990. They found that the atmospheric concentrations of
three persistent insecticides — lindane, ɑ-hexachlorocyclohexane (or ɑ-HCH) and
endosulfan — had dropped close to the level of “virtual elimination,” a
concentration at which scientists can no longer quantify how much of the
chemical is present."
Via
Future Crunch:
<
https://futurecrunch.com/good-news-global-malaria-lgbtq-warriors-river-albania/>
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
