Traffic and catalytic converter - related atmospheric contamination in the metropolitan region of the city of Rio de Janeiro, Brazil.
In this work, 24-h PM10 samples were collected in Rio de Janeiro, Brazil, and analysed for trace elements (Cd, Ce, Cu, La, Mo, Ni, Pb, Pd, Rh, Sb and Sn). The sampling was carried out at five locations (Bonsucesso; Centro, downtown city; Copacabana; Nova Iguaçu and Sumaré) with different traffic densities and anthropogenic activities. An analytical method based on the EPA method for the determination of trace elements in airborne particulate matter (PM), using ultrasonic-assisted extraction and inductively coupled plasma mass spectrometry (ICP-MS) was applied. Our results suggest that vehicular traffic is the most important source of environmental pollution at the studied sites. The presence of Mo, Pd and Rh in the analysed filters reflects an additional source of pollution caused by the erosion and deterioration of automotive catalytic converters.
da Silva
Lílian Irene Dias
LI
Coordenação de Análises Minerais, Centro de Tecnologia Mineral - CETEM, Av. Pedro Calmon 900, Cidade Universitária, CEP 21941-908 Rio de Janeiro, R.J., Brazil.
de Souza Sarkis
Jorge Eduardo
JE
Zotin
Fátima Maria Zanon
FM
Carneiro
Manuel Castro
MC
Neto
Arnaldo Alcover
AA
da Silva
Alzira dos Santos Amaral Gomes
Ados S
Cardoso
Mauri José Baldini
MJ
Monteiro
Maria Inês Couto
MI
D000397:Air Pollution / Q000032:analysis*; D001272:Atmosphere / Q000737:chemistry*; D001336:Automobiles; D001938:Brazil; D002947:Cities; D016000:Cluster Analysis; D005374:Filtration; D007554:Isotopes; D019216:Metals, Heavy / Q000032:analysis / Q000737:chemistry; D052638:Particulate Matter / Q000032:analysis / Q000737:chemistry
D007554:Isotopes; D019216:Metals, Heavy; D052638:Particulate Matter