Composição química da chuva e aporte atmosférico na Ilha Grande, RJ

Autor:	William Zamboni de Mello, Heitor Evangelista, Patricia Alexandre de Souza, Juan Maldonado
Jazyk:	angličtina
Rok vydání:	2006
Předmět:	inorganic chemicals integumentary system Chemistry air pollution Analytical chemistry Mineralogy food and beverages General Chemistry equipment and supplies lcsh:Chemistry lcsh:QD1-999 dry deposition wet deposition Deposition (chemistry) Scavenging QD1-999
Zdroj:	Química Nova, Vol 29, Iss 3, Pp 471-476 (2006) Química Nova v.29 n.3 2006 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ
ISSN:	1678-7064
Popis:	Wet (n = 21) and dry (n = 23) deposition samples were collected from March to September 2002 at the southern coast of Ilha Grande. Rainwater pH varied from 4.3 to 6.3 and ionic concentrations (in µmol L-1) decreased in the order Cl- > Na+ > Mg2+ > SO4(2-) > NO3- ~ NH4+ > K+ ~ H+ > Ca2+. Scavenging of sea-salt aerosols was the major source of Cl-, Na+, Mg2+, and Ca2+. Half of total SO4(2-) was non-sea-salt SO4(2-). Total deposition fluxes of NH4+, NO3-, and non-sea-salt SO4(2-) were respectively 9.3, 17.8, and 16.0 mol ha-1 month-1.
Databáze:	OpenAIRE
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