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20th June 2017 14:13
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Wildfire pollution much worse than thought, study says
Wildfire pollution much worse than thought, study says
Doyle Rice , USA TODAY Published 6:24 p.m. ET June 15, 2017 | Updated 10:32 a.m. ET June 16, 2017
https://www.usatoday.com/story/weath...ght/102882646/
Monstrous wildfires not only devastate communities and sometimes kill dozens each year in the U.S., but they also release a toxic brew of hazardous pollution, a new study found.
That pollution, often in the form of microscopic specks known as aerosols, is "a hazard to human health, particularly to the lungs and heart," said study lead author Greg Huey from the Georgia Institute of Technology.
In fact, the study found that fires emit these fine particles — which are much smaller than a grain of sand or a human hair — into the air at a rate three times as high as records kept by the Environmental Protection Agency.
Then people can inhale them. Some particulate matter contains oxidants that cause genetic damage. The particles can drift over long distances and pollute populated areas, where they're inhaled by people.
Uncontrolled wildfires burn much more biomass (trees, bushes, and other organic material) per area than do intentionally set prescribed burns, and pollute at a much higher rate, the study found.
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Wildfires also belch out methanol, benzene, ozone precursors and other noxious emissions, scientists said, which sounds like an oil refinery went up in flames. That’s not so far-fetched, Huey said, since oil and other fossil fuels come from similar ancient materials.
The study was based on airborne research missions during three major wildfires in 2013, including the Rim Fire, the third-largest wildfire in California history. Instruments on board NASA and U.S. Department of Energy aircraft allowed teams of researchers on board to measure chemicals and particles in real time and pull in masses of data.
“We actually went to measure, right above the fire, what was coming out,” said Huey.
So far this year, wildfires have already charred over 2.4 million acres across the U.S., the National Interagency Fire Center said. That's about 1 million acres more than usual and the most since 2011.
The study was published in the Journal of Geophysical Research: Atmospheres, a publication of the American Geophysical Union
FEAR PORN OR JUST INFORMATION THE ANSWER IS IN YOUR HEART NOT YOUR HEAD
Last edited by ramus; 20th June 2017 at 14:15.
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20th June 2017 16:34
Link to Post #2