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| 北京大气重污染过程PM10中水溶性盐的研究 | |
| 引用本文： | 张凯,王跃思,温天雪,胡波,刘广仁,MESLMANI Yousef.北京大气重污染过程PM10中水溶性盐的研究[J].中国环境科学,2006,26(4):385-389. |
| 作者姓名： | 张凯 王跃思 温天雪 胡波 刘广仁 MESLMANI Yousef |
| 作者单位： | 1. 中国科学院大气物理研究所,北京100029;中国科学院研究生院,北京,100049 2. 中国科学院大气物理研究所,北京100029 3. Environmental Protection Division,Department of Safety and Protection,Atomic Energy Commission,Damascus,Syria |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| 摘 要： | 利用大气颗粒物快速捕集及化学成分在线分析系统,观测了2004年秋季北京出现的一次长时间严重污染天气过程中PM10的水溶性无机盐浓度的变化结果表明,PM10中总水溶性无机盐浓度在这次重污染过程中升高了4.7倍.硝酸盐、硫酸盐、铵盐的浓度分别升高7.9,4.1,5.4倍,这3种无机盐的日变化在污染期和非污染期有明显差异.污染期S2、Nox向SO42-、NO3转化率明显高于非污染期. |
| 关 键 词： | 重污染 硝酸盐 硫酸盐 铵盐 |
| 文章编号： | 1000-6923(2006)04-0385-05 |
| 修稿时间： | 2005年11月29 |
Studies on water-soluble salts in PM10 during the heavy pollution process in Beijing |
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| ZHANG Kai,WANG Yue-si,WEN Tian-xue,HU Bo,LIU Guang-ren,MESLMANI Yousef.Studies on water-soluble salts in PM10 during the heavy pollution process in Beijing[J].China Environmental Science,2006,26(4):385-389. | |
| Authors: | ZHANG Kai WANG Yue-si WEN Tian-xue HU Bo LIU Guang-ren MESLMANI Yousef |
| Abstract: | Utilizing the rapid collection of atmospheric particles and the chemical component in line analysis system, the change of water soluble inorganic salt concentration of PM10 in the process of seriously polluted weather for a long time happened in the autumn of the year 2004 in Beijing was observed. The total concentration of water soluble salts increased 4.7 times in this heavily polluted process. The concentrations of nitrate, sulfate and ammonium salt increased 7.9, 4.1 and 5.4 times, respectively, with the concentration of nitrate enhanced range the greatest, and the diurnal variations of these 3 kinds of inorganic salts differed markedly in polluted and not polluted periods. The correlation analysis showed that nitrate, sulfate and ammonium salt all had marked positive correlations in polluted period; and the transformation rates of SO2 and NOx to SO42- and NO3- were higher obviously in polluted period than the not polluted period. |
| Keywords: | PM10 |
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