dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2015-05-15T13:30:20Z | |
dc.date.available | 2015-05-15T13:30:20Z | |
dc.date.created | 2015-05-15T13:30:20Z | |
dc.date.issued | 2011 | |
dc.identifier | Environmental Pollution, v. 159, n. 5, p. 1190-1197, 2011. | |
dc.identifier | 0269-7491 | |
dc.identifier | http://hdl.handle.net/11449/123512 | |
dc.identifier | 10.1016/j.envpol.2011.02.002 | |
dc.identifier | 9165109840414837 | |
dc.identifier | 6320037184956604 | |
dc.description.abstract | Increased reactive nitrogen (Nr) deposition due to expansion of agro-industry was investigated considering emission sources, atmospheric transport and chemical reactions. Measurements of the main inorganic nitrogen species (NO2, NH3, HNO3, and aerosol nitrate and ammonium) were made over a period of one year at six sites distributed across an area of ∼130,000 km2 in southeast Brazil. Oxidized species were estimated to account for ∼90% of dry deposited Nr, due to the region’s large emissions of nitrogen oxides from biomass burning and road transport. NO2-N was important closer to urban areas, however overall HNO3-N represented the largest component of dry deposited Nr. A simple mathematical modeling procedure was developed to enable estimates of total Nr dry deposition to be made from knowledge of NO2concentrations. The technique, whose accuracy here ranged from <1% to 29%, provides a useful new tool for the mapping of reactive nitrogen deposition | |
dc.language | eng | |
dc.relation | Environmental Pollution | |
dc.relation | 4.358 | |
dc.relation | 1,615 | |
dc.rights | Acesso aberto | |
dc.source | Currículo Lattes | |
dc.subject | Reactive nitrogen | |
dc.subject | Dry deposition | |
dc.subject | Nitric acid | |
dc.subject | Nitrogen dioxide | |
dc.subject | Agriculture | |
dc.title | Measurements and modeling of reactive nitrogen deposition in southeast Brazil | |
dc.type | Artículos de revistas | |