ISSN:
1573-2932
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract Summer and winter concentrations of acidic atmospheric species and their precursors were measured in central Ontario. Large seasonal differences in concentrations were observed for some species. The concentrations of primary emission species, S02 and NOx, were much larger in winter, whereas 03 and aerosol S04 were much reduced. HN03, PAN and aerosol N03 showed little seasonal change; PAN represented about 30% of the total oxidized nitrate. During pollution episodes and in summer, the molar ratio of nitrate (aerosol N03 plus HN03) to aerosol S04 was about 0.1 to 0.2; however, during winter, this molar ratio was about 1 to 2.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00305184
