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A measure aims to streamline absentee voting in Ohio; a new report finds the use of low-value health services high given during the pandemic; authorities say Buffalo mass shooting was a racist hate crime.


Officials deem a mass shooting racially motivated; Russia said to be down 30% of its land forces in Ukraine; and polling suggests swayable Republican voters are turning against Biden.


Optimism is in the air as rural arts tourism spreads, a Rural Home Hospital program helps patients avoid long trips to the city, and farmer cooperatives want Congress to offer more grant money.

Report: 2016 TN Wildfires May Add 'Refinery' Levels of Pollution


Monday, June 19, 2017   

GATLINBURG, Tenn. – Parts of Tennessee continue to recover from the millions of dollars in damage done by last year's wildfires - but new scientific research indicates the damage to the state's air quality my be even worse than the EPA estimates.

Two new studies from the Georgia Institute of Technology indicate particulates created by wildfire can have a long-lasting impact on climate.

Smoke samples weren't specific to the Tennessee fires, but Professor Greg Huey with Georgia Tech says they found a list of chemicals you'd expect from an oil refinery - methanol, benzene, other noxious emissions - which pose significant risks to public health.

"As it gets drier, we might expect to have more forest fires and larger problems with air quality due to them," he says. "So our study points out that we're really going to have to think about forest management and fire policies as we move ahead."

A separate Georgia Tech study found that particulates from forest fires are reaching the upper atmosphere and staying there, which could speed up global warming. Scientists analyzed air samples collected by NASA aircraft some seven miles above locations across the U.S.

Drought and warmer temperatures have been linked to the increase in the number and size of wildfires across western states.

Huey notes the microscopic specks released by burning forests are especially dangerous for the lungs and heart. He says one way to limit the amount of particulates could be to beat wildfires at their own game.

"There's a pretty obvious candidate to look at, and that's to do prescribed burning because prescribed burning releases fewer pollutants per amount of fuel burned than the wildfires do," he explains.

Previous EPA estimates for forest-fire pollution levels were based on samples taken on the ground during controlled burns ignited by forestry professionals.

Huey and his team captured smoke samples by flying directly into three separate active wildfire plumes.

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U.S. Rep. Raul Grijalva, D-Ariz., addresses an Earth Day rally at the Arizona State Capitol. (EDF/Adriana Zehbrauskas, Moms Clean Air Force)


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