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Chameides 1986
Chameides, W.L. (1986). Possible role of NO3 in the nighttime chemistry of a cloud. Journal of Geophysical Research 91: doi: 10.1029/JD091iD05p05331. issn: 0148-0227.

The NO3 radical in the aqueous-phase is a strong oxidizing agent which reacts rapidly with a wide variety of inorganic and organic species. Within nighttime clouds the production of gaseous NO3 from the reaction of NO2 with O3 followed by heterogeneous scavenging of NO3 by cloud droplets can represent a significant source of these reactive radicals to water. Model calculations indicate that in addition to leading to the production of NO3- in cloud water, this aqueous-phase source of NO3 can, under the appropriate conditions and depending upon the values for a number of uncertain rate constants, have a significant impact upon the rate of conversion of SO2 to H2SO4.

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Journal of Geophysical Research
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