| 乌鲁木齐市采暖期大气PM10及PM2.5中Cd的形态分析 |
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| 作者姓名： | Wang WQ Zhu XP Zheng CX Aikebaier Yilahong Liu B Wei LY |
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| 作者单位： | 新疆农业大学草业与环境科学学院 |
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| 基金项目： | 国家自然科学基金项目(40861010);新疆自治区高校科研计划重点项目(XJEDU2010I26);新疆自治区自然科学基金项目(2011211A027);新疆自治区土壤学重点学科项目资助 |
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| 摘 要： | 2009年12月14日—28日采集了新疆农业大学校园PM10和PM2.5样品,分析了重金属Cd的形态和风险指数。该采样点在冬季采暖期间PM10及PM2.5污染非常严重,PM10和PM2.5中Cd的含量分别为3.642和1.964ng.m-3,均以残渣态为主,但PM2.5中Cd的生物有效性高于PM10中Cd的生物有效性。PM10中Cd的致癌风险为6.56×10-6,而PM2.5中Cd的致癌风险为3.46×10-6,均处于可接受的风险水平。
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| 关 键 词： | PM10 PM2.5 重金属Cd 形态分析 生物有效性 |
Speciation analysis of Cd in PM10 and PM2.5 during heating period in Urumqi |
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| Wang WQ,Zhu XP,Zheng CX,Aikebaier ,Yilahong ,Liu B,Wei LY.Speciation analysis of Cd in PM10 and PM2.5 during heating period in Urumqi[J].Spectroscopy and Spectral Analysis,2012,32(1):235-238. |
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| Authors: | Wang Wen-quan Zhu Xin-ping Zheng Chun-xia Aikebaier Yilahong Liu Bo Wei Li-yuan |
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| Institution: | College of Grassland & Environmental Science, Xinjiang Agricultural University, Urumqi 830052, China. wwqqlr@sina.com |
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| Abstract: | PM2.5 and PM10 samples were collected on campus of Xinjiang Agricultural University during Dec. 14-28, 2009, and the speciation of Cd in PM10 and PM2.5 and its health risk index was analyzed. The results showed that the pollution caused by PM10 and PM2.5 was severe here during the heating period; Cd in PM10 and PM2.5 was of concentration 3.642 and 1.964 ng x m(-3) respectively, mainly in the form of residue; however, Cd in PM2.5 had a higher bioavailability than that in PM10. The carcinogenic risk of Cd in PM10 and PM2.5 was 6.56 x 10(-6) and 3.46 x 10(-6) respectively, which were both acceptable. |
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| Keywords: | PM10 PM2 5 Cd Speciation analysis Bioavailability |
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