Sources of nitrogen in wet deposition to the Chesapeake Bay region

Evidence for organic N deposition and its anthropogenic sources in China

“…2c). This is consistent with results observed at other sites around the world (Peierls et al, 1997;Russell et al, 1998;Scudlark et al, 1998;Morales et al, 2001;Keene et al, 2002;Cape et al, 2004;Möller et al, 2005;Ham and Tamiya, 2006;Ham et al, 2006;Calderón et al, in press). However, the DON concentrations at most sites in China were substantially higher (with a median value of 117 µmol L -1 ) compared to other sites around the world (with a median value of 13 µmol L -1 ) (Fig.3).…”

“…(Cornell et al, 1995;Peierls et al, 1997;Russell et al, 1998;Scudlark et al, 1998;Campbell et al, 2000;Morales et al, 2001;Keene et al, 2002;Cape et al, 2004;Möller et al, 2005;Ham and Tamiya, 2006;Ham et al, 2006;Hayashi et al, 2007;Calderón et al, in press). The numbers in the boxes are median values.…”

Chemical and isotopic interpretation of major ion compositions from precipitation: a one-year temporal monitoring study in Wrocław, SW Poland

“…Hoering 1957;Moore 1977;Freyer 1978a, b;Heaton 1987;Xiao et al 2012;Felix et al 2013) however not for Poland yet to our knowledge. Atmospheric NH 3 is emitted from soils, oceans and is excreted by animals (Xiao and Liu 2002); anthropogenic sources include domestic animal excreta, fertilizers and biomass burning (Prospero et al 1986;Hegg et al 1988;Denterer and Crutzen 1994;Russell et al 1998;Xiao and Liu 2002;Battye et al 2003;Sapek 2013;Prenni et al 2014). Nitrogen isotope composition of ammonium (Moore 1977;Freyer 1978a, b;Heaton 1987).…”

Atmospheric nitrogen deposition to the Mullica River-Great Bay Estuary

“…Studies conducted along the east coast of the United States indicate that atmospheric nitrogen deposition represents a significant amount of the total nitrogen input to coastal waters (Fisher and Oppenheimer, 1991;Paerl and Fogel, 1994;Russell et al, 1998;Scudlark et al, 1998;Castro and Driscoll, 2002;Whitall et al, 2003). A large fraction of the atmospheric nitrogen input is in the form of inorganic nitrogen, mainly nitrate (NO 3 -) and ammonium (NH 4 + ).…”