| 泰山PM10及其中化学成分变化特征 |
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| 引用本文： | 车浩驰,王亚强,杨筠,沈小静,张璐,王德众.泰山PM10及其中化学成分变化特征[J].气候变化研究进展,2014,10(6):399-407. |
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| 作者姓名： | 车浩驰 王亚强 杨筠 沈小静 张璐 王德众 |
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| 作者单位： | 1.中国气象科学研究院，北京 100081；
2 山东省泰安市气象局，泰安 271000 |
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| 基金项目： | 国家重点基础研究发展计划，国家自然科学基金 |
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| 摘 要： | 为研究华北平原区域背景气溶胶成分及其变化特征，2010年6月至2011年7月在泰山顶采集了64个PM10滤膜样品，分析了样品的PM10及其中无机盐离子和有机碳（OC）、元素碳（EC）的质量浓度，并对各成分相关性等进行了分析。泰山PM10年均质量浓度约为68.4 mg/m3，其中无机盐离子约占总质量的64.8%，碳气溶胶约占17.4%。无机盐离子的质量浓度从春季逐渐增大，夏季达到峰值，秋季下降，冬季最小；OC质量浓度从春季至秋季逐渐增高，冬季最低，EC变化类似，但夏秋两季差别不大。二次有机碳（SOC）与OC的比值四季均在50%以上，年均值约为58.5%。通过后向轨迹聚类分析发现，在经过城市的较短轨迹以及南方较短混合轨迹的影响下，泰山PM10质量浓度较高，而西北长距离传输气团PM10浓度均较低。
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| 关 键 词： | PM10 水溶性无机盐离子 有机碳 元素碳 泰山 |
| 收稿时间： | 2014-04-04 |
| 修稿时间： | 2014-05-20 |
Characters of PM10 and Its Chemical Components at Mount Tai |
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| Che Haochi,Wang Yaqiang,Yang Yun,Shen Xiaojing,Zhang Lu,Wang Dezhong.Characters of PM10 and Its Chemical Components at Mount Tai[J].Advances in Climate Change,2014,10(6):399-407. |
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| Authors: | Che Haochi Wang Yaqiang Yang Yun Shen Xiaojing Zhang Lu Wang Dezhong |
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| Institution: | 1.Chinese Academy of Meteorological Sciences, Beijing 100081, China; 2.Tai’an Meteorological Bureau of Shandong Province, Tai’an 271000, China |
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| Abstract: | In order to better understand the chemical components and their variations of background aerosols in the North China Plain, sixty-four PM10 samples were collected on the top of Mount Tai from June 2010 to July 2011. The mass concentrations and seasonal variations of PM10 as well as its nine water soluble ions, organic carbon (OC) and elemental carbon (EC) have been analyzed. The correlation analysis of various chemical components has also been performed. The annual average mass concentration of PM10 is 68.4 mg/m3, and inorganic salts accounts for 64.8% in PM10, while carbon aerosol accounts for 17.4%. The mass concentration of inorganic salt increases gradually from spring, reaches its peak in summer, then decreases in autumn and comes to the lowest in winter. The mass concentration of OC increases from spring to autumn and reaches the minima in winter. Similar pattern has been found in the mass concentration of EC; however, the EC concentrations of summer and autumn are similar. The ratio of secondary organic carbon (SOC) to OC is above 50% for all seasons with an annual average of 58.5%. Back trajectory analysis shows that when Mount Tai is mainly influenced by air masses from the southern area and megacities, mass concentrations of PM10 and its components are high; while it is mainly influenced by air masses from Northwest China through long distance transportation, the mass concentrations of PM10 and its components are much lower. |
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| Keywords: | PM10 water soluble ions of inorganic salt organic carbon elemental carbon Mount Tai |
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