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Simultaneous concentrations of ammonia and nitric acid in a polluted atmosphere and their equilibrium relationship to particulate ammonium nitrate

Journal Article · · Environ. Sci. Technol.; (United States)
DOI:https://doi.org/10.1021/es60159a010· OSTI ID:5485202

Simultaneous absolute concentrations of ammonia and nitric acid in ambient air were measured with short integration times in Riverside, Calif. A kilometer path-length Fourier transform infrared spectrometer was utilized. During selected episodes, 24 hr high volume particulate samples were also collected and analyzed for ammonium and nitrate ions. Analysis supports the hypothesis that particulate ammonium nitrate is in equilibrium with its precursors, ammonia and HNO/sub 3/. 20 references, 3 tables.

Research Organization:
Univ. of California, Riverside
OSTI ID:
5485202
Journal Information:
Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 13:11; ISSN ESTHA
Country of Publication:
United States
Language:
English