| 无锡市区大气污染物状况及变化趋势分析 |
| Analysis on the Status and Change Trends of Air Pollutants in Wuxi City |
| 投稿时间：2016-12-01 修订日期：2017-03-13 |
| DOI：10.19316/j.issn.1002-6002.2018.03.05 |
| 中文关键词: 无锡 大气污染物 周末效应 反周末效应 |
| 英文关键词:Wuxi air pollutants weekend effect anti-weekend effect |
| 基金项目:教育部人文社会科学基金"长三角地区大气PM2.5遥感监测及其时空分布特征研究"（16YJCZH021）；国家科技重大专项子课题（2012ZX07506-002） |
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| 通讯作者:龚绍琦* 南京信息工程大学地理与遥感学院, 江苏 南京 210044 |
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| 中文摘要: |
| 使用2012-2015年无锡市区的6种大气污染物监测数据，对无锡市区各污染物的年度变化、空间分布、影响因素进行了分析。结果表明：①2012-2015年无锡市区SO2、O3质量浓度呈下降趋势，且趋势显著；NO2质量浓度呈下降趋势，但不明显；CO、PM10、PM2.5的质量浓度年际变化比较平稳。②无锡市区SO2、NO2、PM10、PM2.5、CO的空气质量分指数（IAQI）均为冬季最高、夏季最低；O3的IAQI则为夏季最高、冬季最低。③SO2、NO2、PM10、PM2.5、CO浓度间呈两两正相关，且相关性极显著；O3浓度与NO2、CO呈显著负相关，与SO2、PM10、PM2.5浓度之间没有明显的关联。④分析了无锡市区各项大气污染物浓度的空间分布特征。⑤SO2、NO2、PM10浓度周内变化具有"周末效应"的特征，而O3、CO和PM2.5浓度周内变化出现"反周末效应"。 |
| 英文摘要: |
| In this paper, the annual change, spatial distribution and influencing factors of air pollutants in urban area of Wuxi were analyzed using six kinds of monitoring data in local area from 2012 to 2015. The results showed that:①The concentration of SO2 and O3 in Wuxi urban area decreased significantly from 2012 to 2015, the concentration of NO2 showed a insignificant declining trends, and the concentration of CO, PM10 and PM2.5 did not show obvious trends. ②The IAQI of SO2, NO2, PM10, PM2.5 and CO in Wuxi urban area were the highest in winter and lowest in summer, while the IAQI of O3 was the highest in summer and lowest in winter. ③There was a significantly positive correlation between the SO2, NO2, PM10, PM2.5 and CO concentrations. Significantly negative correlations existed between the O3 concentration and the NO2 and CO concentrations, and no correlations existed between O3 and SO2, PM10, PM2.5. ④The spatial distribution characteristics of atmospheric pollutants in Wuxi were analyzed. ⑤ The concentrations of SO2, NO2, O3, PM10 showed "weekend effects", while the concentrations of CO and PM10 showed "anti-weekend effects". |
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