نتایج جستجو برای: atmospheric chemistry
تعداد نتایج: 181495 فیلتر نتایج به سال:
Saharan dust events at the Jungfraujoch: detection by wavelength dependence of the single scattering albedo and analysis of the events during the years 2001 and 2002 M. Collaud Coen, E. Weingartner, D. Schaub, C. Hueglin, C. Corrigan, M. Schwikowski, and U. Baltensperger MeteoSwiss, Aerological Station, Les Invuardes, CH-1530 Payerne, Switzerland Laboratory of Atmospheric Chemistry, Paul Scherr...
During springtime, the Arctic atmospheric boundary layer undergoes frequent rapid depletions in ozone and gaseous elemental mercury due to reactions with halogen atoms, influencing atmospheric composition and pollutant fate. Although bromine chemistry has been shown to initiate ozone depletion events, and it has long been hypothesized that iodine chemistry may contribute, no previous measuremen...
1. We compared the extracellular enzyme activity (EEA) of sediment microbial assemblages with sediment and water chemistry, gradients in agricultural nutrient loading (derived from principal component analyses), atmospheric deposition and hydrological turnover time in coastal wetlands of the Laurentian Great Lakes. 2. There were distinct increases in nutrient concentrations in the water and in ...
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