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| 南京城区与郊区秋季大气PM_(10)中水溶性离子的特征研究 | |
| 引用本文： | 许明君,王月华,汤莉莉,张祥志,汤蕾,李旭文,崔云霞,程穆宁.南京城区与郊区秋季大气PM_(10)中水溶性离子的特征研究[J].环境工程,2012,30(5):108-113. |
| 作者姓名： | 许明君 王月华 汤莉莉 张祥志 汤蕾 李旭文 崔云霞 程穆宁 |
| 作者单位： | 1. 南京信息工程大学环境科学与工程学院,南京210044 江苏省大气环境监测与污染控制研究院,南京210044 2. 中国京冶工程技术有限公司,北京,100088 3. 南京信息工程大学环境科学与工程学院,南京210044 江苏省环境监测中心,南京210036 4. 江苏省环境监测中心,南京,210036 5. 江苏省环境科学研究院,南京,210029 |
| 基金项目： | 江苏省高校自然科学重大项目，中国气象局公益性行业专项，江苏省环境监测基金项目，江苏省环保厅项目 |
| 摘 要： | 对南京市城区与郊区秋季PM10中水溶性离子的浓度水平,变化规律及其相关性进行分析。结果表明:水溶性离子是南京市PM10的重要组成部分,占PM10总量的26.8%～49.5%;NO3-、SO24-为南京PM10中离子的主要成分同时SO24-与PM10的相关性高,在郊区与城区相关系数分别为0.97与0.98;土壤源对Mg2+的贡献多于海洋气溶胶。郊区与城区非海盐Mg2+和Ca2+的比值分别为0.0308～0.0557与0.0314～0.0558,与中国北方沙漠地区相异,说明观测期间南京大气PM10主要受局地源影响;南京城、郊NO3-/SO24-均值分别为0.74和0.80,说明南京市城郊PM10中NO3-与SO24-更多地来自于机动车尾气排放。 |
| 关 键 词： | PM10 水溶性离子 南京 |
STUDY ON CHARACTERISTICS OF WATER-SOLUBLE IONS IN PM_(10) IN AUTUMN IN NANJING |
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| Xu Mingjun,Wang Yuehua,Tang Lili,Zhang Xiangzhi,Tang Lei,Li Xuwen,Cui Yunxia,Cheng Muning.STUDY ON CHARACTERISTICS OF WATER-SOLUBLE IONS IN PM_(10) IN AUTUMN IN NANJING[J].Environmental Engineering,2012,30(5):108-113. | |
| Authors: | Xu Mingjun Wang Yuehua Tang Lili Zhang Xiangzhi Tang Lei Li Xuwen Cui Yunxia Cheng Muning |
| Institution: | 1.School of Environmental Science and Engineering,Nanjing University of Information Engineering,Nanjing 210044,China; 2.Jiangsu Air Environment Monitoring and Pollution Control Institute,Nanjing 210044,China;3.China Jingye Engineering Co.,Ltd,Beijing 100088,China;4.Jiangsu Environmental Monitoring Center,Nanjing 210036,China; 5.Jiangsu Academy of Environmental Science,Nanjing 210029,China) |
| Abstract: | It was researched that the concentration level,change law and correlativity of the water soluble ions in PM10 in autumn in the urbon and suburban areas of Nanjing.The results showed that water soluble ions were an important part of PM10 in Nanjing,which accounted for 26.8% to 49.5% of PM10 total amount;NO-3,SO2-4 were the main component of PM10 in Nanjing while the correlation between SO2-4 and PM10 was high,in suburban and urban areas correlation coefficients were 0.97 and 0.98;the soil source contribution to Mg2+ was more than marine aerosols.Suburban and urban non-sea salt Mg2+/Ca2+ ratios were 0.0308~0.0557 and 0.0314~0.0558,which were different from desert regions of northern China,showing that PM10 is mainly affected by local source;suburban and urban NO-3/SO2-4 ratios(average) were 0.74 and 0.80,showing that NO-3 and SO2-4 in PM10 in Nanjing were mainly from vehicle exhaust emissions. |
| Keywords: | PM10 water-soluble ions Nanjing |
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