| 引用本文: | 王琨,贾琳琳,黄丽坤,崔晨,王凤艳,吕娜,赵庆良.严重雾霾期大气PM2.5和PM10中水溶性离子污染特征[J].哈尔滨工业大学学报,2014,46(12):53.DOI:10.11918/j.issn.0367-6234.2014.12.009 |
| WANG Kun,JIA Linlin,HUANG Likun,CUI Chen,WANG Fengyan,L Na,ZHAO Qingliang.Pollution characteristics of water-soluble ions in PM2.5 and PM10 under severe haze days[J].Journal of Harbin Institute of Technology,2014,46(12):53.DOI:10.11918/j.issn.0367-6234.2014.12.009 |
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| 严重雾霾期大气PM2.5和PM10中水溶性离子污染特征 |
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王琨1, 贾琳琳2, 黄丽坤3, 崔晨1, 王凤艳4, 吕娜4, 赵庆良1
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(1.哈尔滨工业大学 市政环境工程学院, 150090 哈尔滨; 2.黑龙江省环境保护科学研究院,150056 哈尔滨; 3.哈尔滨商业大学 食品学院, 150076 哈尔滨; 4.哈尔滨市环境保护科学研究院, 150076 哈尔滨)
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| 摘要: |
| 为掌握雾霾期大气PM2.5和PM10中水溶性离子污染特征,采集东北某市2013年10月20~31日发生严重雾霾期间大气PM2.5和PM10样品,分析颗粒物样品中9种水溶性离子(F-、Cl-、NO3-、SO42-、Na+、NH4+、K+、Mg2+和Ca2+)的质量浓度．结果表明:各水溶性离子均表现为夜间质量浓度大于日间质量浓度,其在雾霾期PM2.5中的昼、夜质量浓度比为1.68;NO3-、SO42-、NH4+等3种离子质量浓度较高,雾霾期PM2.5中质量分数分别为11.03％、8.3％和7.39％,PM10中也有类似结果．K+和Ca2+在PM2.5和PM10中,雾霾期和非雾霾期质量分数变化不大. 根据各离子比值,可以判定雾霾期固定源对颗粒物污染的贡献更大,说明雾霾期城市气象因素对大气颗粒物污染影响较大．对比2009年10、11月水溶性离子数据发现移动源污染贡献在增加． |
| 关键词: PM2.5 PM10 质量浓度 水溶性离子 雾霾 |
| DOI：10.11918/j.issn.0367-6234.2014.12.009 |
| 分类号:X513 |
| 基金项目:哈尔滨市科技攻关项目(2013AA4AS045). |
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| Pollution characteristics of water-soluble ions in PM2.5 and PM10 under severe haze days |
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WANG Kun1, JIA Linlin2, HUANG Likun3, CUI Chen1, WANG Fengyan4, L Na4, ZHAO Qingliang1
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(1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, 150090 Harbin, China; 2.Heilongjiang Scientific Research Institute of Environmental Protection, 150056 Harbin, China; 3.School of Food Engineering, Harbin University of Commerce, 150076 Harbin, China; 4. Harbin Scientific Research Institute of Environmental Protection, 150076 Harbin, China)
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| Abstract: |
| To investigate the pollution characteristics of water soluble ions in PM2.5 and PM10 under severe haze days, both PM2.5 and PM10samples were collected in a city of northeast China under severe haze days during October 20-2,3. Nine water-soluble ions in PM2.5 and PM10including F-, Cl-, NO3-, SO42-, Na+, NH4+, K+, Mg2+and Ca2+ were analyzed. The results showed that the concentrations of all water-soluble ions mass concentration in night were higher than those in day time, with a ratio of 1.68 for PM2.5in haze days. The concentrations of SO42-, NO3-and NH4+were higher and their percentage in PM2.5 were 11.03％,8.3％ and 7.39％ in haze days, the same results in PM10 were obtained. The percentages of K+and Ca2+in haze and non-haze periods were similar. Based on the ratio of different ions, the pollution from stationary sources were higher than that from mobile sources in haze days, this showed that meteorological factors had greater influences. In comparison with the data of water soluble ions during October and November of 2009, the concentrations from mobile sources were on the rise. |
| Key words: PM2.5 PM10 mass concentration water-soluble ions haze |
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