Inorganic nitrogen over the western North Atlantic Ocean
| Autor: | S. Malle, D. L. Toom, Alexander A. P. Pszenny, Donald R. Hastie, John R. Maben, Douglas M. Whelpdale, William C. Keene, James N. Galloway |
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| Rok vydání: | 1990 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Atmospheric Science Global and Planetary Change organic chemicals food and beverages chemistry.chemical_element respiratory system Particulates Nitrogen Oxygen Aerosol Altitude Oceanography chemistry Environmental chemistry Environmental Chemistry Environmental science Sea salt aerosol Inorganic compound NOx General Environmental Science |
| Zdroj: | Global Biogeochemical Cycles. 4:267-278 |
| ISSN: | 0886-6236 |
| DOI: | 10.1029/gb004i003p00267 |
| Popis: | The concentrations of the reactive nitrogen species NO2, NOx(= NO + NO2), NOy (the sum of all compounds of nitrogen and oxygen with the exception of N2O), particulate NO3−, and volatile NO3− were measured from ship and aircraft platforms over the western North Atlantic Ocean as part of the GCE/CASE/WATOX experiment. Air masses sampled were divided into continentally influenced and typical marine on the basis of trajectories, and radon and black carbon measurements. From the NO3− measurements on size separated aerosol and the altitude variations of volatile NO3− and particulate NO3−, a significant interaction between volatile NO3− and sea salt aerosol was indicated. The average marine concentrations measured were: 18 nmol m−3 for NO2, 29 nmol m−3 for NOx, 46 nmol m−3 for NOy, and 10 nmol m−3 for total inorganic NO3−. The reactive nitrogen species were present at concentrations some 40 times those encountered in the remote Pacific Ocean, whereas the inorganic NO3− was only 3 times higher. |
| Databáze: | OpenAIRE |
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