Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nitric acid and ammonia in urban and rural locations
Abstract Measurements of ammonia, nitric acid and particulate nitrate were made at urban sites in Commerce City, Colorado, and Warren, Michigan and at rural locations near Abbeville, Louisiana and Luray, Virginia. The average ammonia and nitric acid concentrations over all sites were 1.7 ppb and 0.7 ppb, respectively. Diurnal patterns, determined at the Abbeville site, suggested a photochemical mechanism for the production of nitric acid and local sources for ammonia. Seasonal data collected in Warren, Michigan showed ammonia concentrations were lowest in the winter. This appears to be caused by the temperature dependence of the ammonium nitrate equilibrium constant. Ammonia and nitric acid concentrations at the other sites were not in agreement with the concentrations predicted from the ammonium nitrate equilibrium constant.
Nitric acid and ammonia in urban and rural locations
Abstract Measurements of ammonia, nitric acid and particulate nitrate were made at urban sites in Commerce City, Colorado, and Warren, Michigan and at rural locations near Abbeville, Louisiana and Luray, Virginia. The average ammonia and nitric acid concentrations over all sites were 1.7 ppb and 0.7 ppb, respectively. Diurnal patterns, determined at the Abbeville site, suggested a photochemical mechanism for the production of nitric acid and local sources for ammonia. Seasonal data collected in Warren, Michigan showed ammonia concentrations were lowest in the winter. This appears to be caused by the temperature dependence of the ammonium nitrate equilibrium constant. Ammonia and nitric acid concentrations at the other sites were not in agreement with the concentrations predicted from the ammonium nitrate equilibrium constant.
Nitric acid and ammonia in urban and rural locations
Cadle, S.H (Autor:in) / Countess, R.J (Autor:in) / Kelly, N.A (Autor:in)
Atmospheric Environment ; 16 ; 2501-2506
08.12.1981
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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