| 北京市大气PM_(2.5)中四种水溶性阴离子的水平变化比较 |
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| 引用本文： | 薛立杰,苏领彦,吴少伟,郭新彪. 北京市大气PM_(2.5)中四种水溶性阴离子的水平变化比较[J]. 生态环境, 2011, 0(Z2) |
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| 作者姓名： | 薛立杰 苏领彦 吴少伟 郭新彪 |
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| 作者单位： | 北京大学公共卫生学院;北京市石景山区疾病预防控制中心; |
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| 基金项目： | 国家自然科学基金项目(81072267) |
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| 摘 要： | 了解北京市城区和郊区大气细颗粒物中的四种水溶性阴离子F-、Cl-、SO42-、NO3-的浓度水平,并分析影响其水平高低的因素。使用聚四氟乙烯滤膜分别采集北京市城区和郊区大气中的PM2.5,用纯水提取后采用离子色谱法测定水溶性阴离子质量浓度。采样期间北京市大气PM2.5、F-、Cl-、SO42-和NO3-质量浓度几何均数分别为55.36、0.02、0.46、6.72和1.09μg·m-3,四种水溶性阴离子质量浓度总和占PM2.5质量浓度的19.14%;同一季节(春季)郊区监测点大气PM2.5、SO42-和NO3-质量浓度显著高于城区监测点;城区大气PM2.5与四种水溶性阴离子质量浓度秋季高于春季,但差异无统计学意义;大气PM2.5与Cl-、SO42-和NO3-质量浓度均高度相关。Cl-、SO42-、NO3-是北京市大气PM2.5的重要组成成分。
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| 关 键 词： | 大气污染 北京市 PM2.5 水溶性阴离子 离子色谱 |
Comparison of levels of four water-soluble ionic species in ambient PM_(2.5) in Beijing |
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| XUE Lijie ,,SU Lingyan ,WU Shaowei ,GUO Xinbiao .School of Public Health,Peking University Health Science Center,Beijing ,China,.Shijingshan District Center for Diseases Control , Prevention,Beijing. Comparison of levels of four water-soluble ionic species in ambient PM_(2.5) in Beijing[J]. Ecology and Environmnet, 2011, 0(Z2) |
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| Authors: | XUE Lijie SU Lingyan WU Shaowei GUO Xinbiao .School of Public Health Peking University Health Science Center Beijing China .Shijingshan District Center for Diseases Control Prevention Beijing |
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| Affiliation: | XUE Lijie 1,2,SU Lingyan 2,WU Shaowei 1,GUO Xinbiao 1 1.School of Public Health,Peking University Health Science Center,Beijing 100191,China,2.Shijingshan District Center for Diseases Control and Prevention,Beijing 100043 |
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| Abstract: | |
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| Keywords: | air pollution Beijing PM2.5 water-soluble ionic species ion chromatography |
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