کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4413901 1307693 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Traffic and catalytic converter – Related atmospheric contamination in the metropolitan region of the city of Rio de Janeiro, Brazil
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Traffic and catalytic converter – Related atmospheric contamination in the metropolitan region of the city of Rio de Janeiro, Brazil
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 71, Issue 4, March 2008, Pages 677–684
نویسندگان
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