Scientists have developed a new tool for quantitatively measuring elusive atmospheric chemicals that play a key role in the formation of photochemical smog. Better measurements will improve scientists ...

An illustration of atmospheric inhomogeneities in a megacity, showing “large eddy simulations” of Hong Kong superimposed on a composite London skyline. The resulting inhomogeneities in ammonia and ...

Smog could worsen across the United States in the coming decades as climate change boosts summer temperatures and makes ozone levels more difficult to control, a new study says. Americans can expect ...

Sunny skies and sizzling temperatures are coming Sacramento’s way — but the summer weather also brings the dangers of smog looming across the capital region. The haze is more than a blemish on the ...

The effect of nitric acid on aerosol particles in the atmosphere may offer an explanation for the smog seen engulfing cities on frosty days. The effect of nitric acid on aerosol particles in the ...

UPTON, NY - Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a new tool for quantitatively measuring elusive atmospheric chemicals that play a key role in ...