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Daily concentrations of trace metals in aerosols in Beijing, China, determined by using inductively coupled plasma mass spectrometry equipped with laser ... from: Science of the Total Environment, The]
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This digital document is a journal article from Science of the Total Environment, The, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
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This paper describes the daily concentrations of trace metals and ionic constituents in the aerosol of Beijing, China from March 2001 to August 2003. Daily PM"1"0 concentrations were also measured from September 2001 to August 2003. The daily average PM"1"0 concentration at Beijing, China from September 2001 to August 2003 was 171+/-117 @mg m^-^3 (n=673), which is 5-fold higher than at Yokohama, Japan. Trace metal concentrations were analyzed by using inductively coupled plasma mass spectrometry equipped with a laser ablation sample introduction (LA/ICP-MS), which is a rapid and simultaneous method for multi-element analysis. The daily average metal concentrations in TSP in Beijing from March 2001 to August 2003 were: Al: 3.5+/-2.4 (n=727), Ti: 0.47+/-0.35 (n=720), V: 0.013+/-0.010 (n=716), Cr: 0.019+/-0.015 (n=618), Mn: 0.24+/-0.16 (n=730), Fe: 5.5+/-3.9 (n=728), Co: 0.0046+/-0.0055 (n=629), Ni: 0.022+/-0.024 (n=680), Cu: 0.11+/-0.11 (n=660), Zn: 0.77+/-0.60 (n=726), As: 0.048+/-0.047 (n=731), Se: 0.010+/-0.010 (n=550), Cd: 0.0068+/-0.0082 (n=709), Sb: 0.033+/-0.036 (n=687), and Pb: 0.43+/-0.50 (n=728) (unit, @mg m^-^3). All the metal concentrations in TSP in Beijing, China were 1.7-21.8 times higher than those in TSP in the center of Tokyo, Japan. Notably, As concentrations in TSP in Beijing were 20-fold higher than those in Tokyo. Source identification of aerosols in Beijing was carried out by using the chemical mass balance (CMB) receptor model, with the daily concentration of metals in the aerosol. The major primary sources of the aerosol of Beijing were considered to be soil dust and coal combustion. Vehicle exhaust contribution tended to increase.
Description:
This paper describes the daily concentrations of trace metals and ionic constituents in the aerosol of Beijing, China from March 2001 to August 2003. Daily PM"1"0 concentrations were also measured from September 2001 to August 2003. The daily average PM"1"0 concentration at Beijing, China from September 2001 to August 2003 was 171+/-117 @mg m^-^3 (n=673), which is 5-fold higher than at Yokohama, Japan. Trace metal concentrations were analyzed by using inductively coupled plasma mass spectrometry equipped with a laser ablation sample introduction (LA/ICP-MS), which is a rapid and simultaneous method for multi-element analysis. The daily average metal concentrations in TSP in Beijing from March 2001 to August 2003 were: Al: 3.5+/-2.4 (n=727), Ti: 0.47+/-0.35 (n=720), V: 0.013+/-0.010 (n=716), Cr: 0.019+/-0.015 (n=618), Mn: 0.24+/-0.16 (n=730), Fe: 5.5+/-3.9 (n=728), Co: 0.0046+/-0.0055 (n=629), Ni: 0.022+/-0.024 (n=680), Cu: 0.11+/-0.11 (n=660), Zn: 0.77+/-0.60 (n=726), As: 0.048+/-0.047 (n=731), Se: 0.010+/-0.010 (n=550), Cd: 0.0068+/-0.0082 (n=709), Sb: 0.033+/-0.036 (n=687), and Pb: 0.43+/-0.50 (n=728) (unit, @mg m^-^3). All the metal concentrations in TSP in Beijing, China were 1.7-21.8 times higher than those in TSP in the center of Tokyo, Japan. Notably, As concentrations in TSP in Beijing were 20-fold higher than those in Tokyo. Source identification of aerosols in Beijing was carried out by using the chemical mass balance (CMB) receptor model, with the daily concentration of metals in the aerosol. The major primary sources of the aerosol of Beijing were considered to be soil dust and coal combustion. Vehicle exhaust contribution tended to increase.
