New clues emerge about the fate of smog in Sierra Nevada forests
Berkeley - Most scientists believe that when smog ozone is taken up by the forests of the Sierra Nevada, it is mostly absorbed by trees and plants. But new research at the University of California, Berkeley, suggests a large proportion of the ozone is actually transformed by chemical reactions in th...OHSU researcher publishes first measurements of 'free-base' nicotine in cigarette smoke
... atmosphere, and on the formation and chemistry of smog in urban air....Scripps scientists link ozone to atherosclerosis
...he highly reactive gas is a hazardous component of smog in the summer months. A few years ago, Lerner and Wentworth made the completely unexpected discovery that ozone is involved in human biology. Lerner and Wentworth realized that atherosclerotic plaques have all the ingredients needed to make ozone. T...Increasing ozone over the Atlantic ocean
...n the Southern Hemisphere, implying that the ozone smog problem has expanded far beyond the areas traditio...and the USA (Science Express, 13 May, 2004) Ozone smog was first discovered in the Los Angeles basin in the 1940s, an area where traffic emissions of nitro...Common chemicals morphing into potential toxins in Arctic
...or Company and the University of Copenhagen used a smog chamber to simulate how the alcohols degrade in the atmosphere and discovered a previously unknown reaction that produced PFCAs. Martin says the team also found the compounds in polar bear liver tissue samples. Other studies are examining exposure le...Study: Emission of smog ingredients from trees is increasing rapidly
...irritating and pungent gas that is a major form of smog in the lower atmosphere. While clean-air laws have reduced the level of man-made VOCs (volatile organic compounds), the tree-produced varieties have increased dramatically in some parts of the country, the study found. The increase stems from intens...