Trace metals and inorganic ion measurements in rain from Mexico City and a nearby rural area


Por: Garcia, R, Belmont, R, Padilla, H, Torres, MC, Baez, A

Publicada: 1 ene 2009
Resumen:
Rain is a main source of water for the ecosystem in Mexico. Emitted particulate matter and gases enter the ecosystem by rain scavenging. Although the chemistry of rainwater has been the subject of a number of studies, the insoluble fraction has been virtually ignored. This fraction is made up of particulate material, and can be significant, particularly in rural forest regions. Average aluminium weights were the highest of all elements, in both the soluble and insoluble fractions. Ions with the highest concentrations were [image omitted] and [image omitted], followed by [image omitted], Na+, Cl-, Ca2+, Mg2+ and K+. The Spearman rho correlation showed that the acidity was caused by [image omitted] and [image omitted], and the most important neutralising ion was [image omitted]. High crustal enrichment factors (EFcrusts) suggested that Mexico City in general was richer in Cd, Cr, Mn, Pb, and V than Rancho Viejo. The enrichment factors support the idea that the metals observed in rainwate

Filiaciones:
Garcia, R:
 Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico

 Univ Nacl Autonoma Mexico, Ciudad Univ, Centro Ciencias Atmosfera, Mexico City, DF, Mexico

Belmont, R:
 Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico

 Univ Nacl Autonoma Mexico, Ciudad Univ, Centro Ciencias Atmosfera, Mexico City, DF, Mexico

Padilla, H:
 Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico

 Univ Nacl Autonoma Mexico, Ciudad Univ, Centro Ciencias Atmosfera, Mexico City, DF, Mexico

Torres, MC:
 Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico

 Univ Nacl Autonoma Mexico, Ciudad Univ, Centro Ciencias Atmosfera, Mexico City, DF, Mexico

Baez, A:
 Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico

 Univ Nacl Autonoma Mexico, Ciudad Univ, Centro Ciencias Atmosfera, Mexico City, DF, Mexico
ISSN: 02757540
Editorial
TAYLOR & FRANCIS LTD, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND, Reino Unido
Tipo de documento: Article
Volumen: 25 Número: 2
Páginas: 71-86
WOS Id: 000265291500001