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Mobility of trace metals in urban atmospheric particulate matter from Beijing, China
Total suspended particles (TSP) and particulate matter ≤ 2.5 µm (PM2.5) from Beijing, China, were studied for a time period of three years (2005– 2008). Beside the total mass and the element concentrations, also the chemical fractionation and bioavailability of various elements was investigated by applying a four-step sequential extraction scheme.
Potential toxic metals like Zn, Cd, As, Pb, and Mn occurred to a high percentage in the mobile fractions and are, thus, especially harmful to the environment and exposed people due to an assumed high bioavailability. Arsenic, Pb, and Ni were even more mobile in the fine fraction (PM2.5 samples), which is of special concern with regard to human health because smaller particles are considered to be more health relevant.
Mobility of trace metals in urban atmospheric particulate matter from Beijing, China
Total suspended particles (TSP) and particulate matter ≤ 2.5 µm (PM2.5) from Beijing, China, were studied for a time period of three years (2005– 2008). Beside the total mass and the element concentrations, also the chemical fractionation and bioavailability of various elements was investigated by applying a four-step sequential extraction scheme.
Potential toxic metals like Zn, Cd, As, Pb, and Mn occurred to a high percentage in the mobile fractions and are, thus, especially harmful to the environment and exposed people due to an assumed high bioavailability. Arsenic, Pb, and Ni were even more mobile in the fine fraction (PM2.5 samples), which is of special concern with regard to human health because smaller particles are considered to be more health relevant.
Mobility of trace metals in urban atmospheric particulate matter from Beijing, China
Alliance Global Sustain.
Rauch, Sébastien (editor) / Morrison, Gregory M. (editor) / Schleicher, Nina (author) / Norra, Stefan (author) / Chai, Fahe (author) / Chen, Yizhen (author) / Wang, Shulan (author) / Cen, Kuang (author) / Yu, Yang (author) / Stüben, Doris (author)
2011-12-10
10 pages
Article/Chapter (Book)
Electronic Resource
English
Mobility of trace metals in urban atmospheric particulate matter from Beijing, China
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