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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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When you walk outside, you might be breathing in more than just car emissions. The good news: car emissions have decreased significantly. The bad news: everyday chemicals now rival cars as a source of air pollution. A new study found that indoor chemical products can, in outdoor air, contribute to ozone or even dangerous small-particulate pollution. School of Earth and Atmospheric Sciences' Sally Ng praised the study: "I think this is a comprehensive study," she said. "[P]revious source apportionment studies have understimated volatile chemical product emissions as sources of urban VOCs."