Vol. 15, issue 05-06, article # 13

Smolyakov B. S., Shinkorenko M. P. Seasonal dynamics of ion composition of atmospheric aerosol and precipitation in Novosibirsk Region. // Atmospheric and oceanic optics. 2002. V. 15. No. 05-06. P. 419-424. PDF
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Abstract:

Data on ion composition of atmospheric aerosol and precipitation (snow and rain) in the Novosibirsk Region in 1996 - 2001 are presented. Seasonal and temporal dynamics of ions' concentration and proportion is associated with a variable contribution of their different sources (gas-phase, terrigenic, sea salt). Acidity of aerosol and precipitation is discussed in a view of their ion balance. Sulfate is the main anion in aerosol particles, and cations from terrigenic sources play an important role in its neutralization, because the ratio of ammonium to sulfate is less than 0.5. The same is true for snow precipitation although a share of sulfate is there substantially reduced. The danger of acidation of the rain precipitation is less, because the ratio of ammonium to sulfate in them is more than 1.