Author(s): C. Walcek & H. Yuan
Aqueous reactions among dissolved radicals and trace metals have been
incorporated into a comprehensive gas-phase chemical reaction mechanism in
order to quantify the chemical influences of clouds on ozone (63) formation in
the lower troposphere.
In-cloud reactions of dissolved HC>2 with itself, the
reaction of dissolved 63 and HC>2, and reactions of dissolved HC>2 with copper
dramatically reduce total HO] and other free-radical concentrations in clouds,
thereby reducing the rate at which 83 is produced from anthropogenic NO% and
Under typical urban or moderately polluted conditions, local
ozone formation rates are reduced by 30-90% when aqueous reactions are
However, the rate at which NO%, Non-Methane HydroCarbons
(NMHC), and 63 are oxidized is also reduced, resulting in longer atmospheri...
Size: 1,063 kb
Paper DOI: 10.2495/AIR960221
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