Issue Date: February 21, 2011
Long-Lived Oxygen Species Are Key To Ozone Reactions
Atmospheric ozone reacts with polycyclic aromatic hydrocarbons in aerosol particles through a multistep mechanism involving intermediate reactive oxygen species, proposes an international group led by Ulrich Pöschl of Germany’s Max Planck Institute for Chemistry (Nat. Chem., DOI: 10.1038/nchem.988). Researchers have puzzled over O3’s behavior in such reactions, which are of central importance to air quality. Experimental data show surface O3 lifetimes of 0.01 to 10 seconds, but computational studies . . .
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