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Evaluation of trace metals and major ions concentrations in rainwater in downtown São Paulo city
[摘要] Rainfall samples collected in the downtown area of São Paulo city, during 2003, exhibited average concentrations of cadmium, lead and copper of 1.33, 8.52 and 49.5 nmol L-1, respectively. Among the major ions, NH4+ was the predominant species followed by NO3-, SO42- and Ca2+, with volume weighed mean (VWM) concentrations of 37.1, 20.1, 11.9 and 10.8 µmol L-1, respectively. All the determined species showed high inter-events variability, including free H+ ions whose VWM concentration was 4.03 µmol L-1, corresponding to a pH value of 5.39.
[发布日期]  [发布机构] 
[效力级别]  [学科分类] 化学(综合)
[关键词] air pollution;trace metals;FIA-stripping detection. [时效性] 
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