Objective To understand the characteristics of atmospheric PM2.5pollution in Hefei City and its meteorological influencing factors, and to provide basis for the prevention and control of air pollution in Hefei City and even the whole province. Methods The atmospheric PM2.5 and meteorological monitoring data in Hefei City from 2014 to 2017 were collected to describe the relationship between the atmospheric PM2.5 concentration and meteorological factors at different monitoring time and location. Results From 2014 to 2107, the average concentration of PM2.5 in Hefei City was 81.06 μg/m3, 65.64 μg/m3, 57.25 μg/m3 and 55.88 μg/m3, respectively,showing a decreasing trend year by year.The temporal distribution of PM2.5 concentration in Hefei City showed a significant seasonal peak-valley characteristic, namely, winter > spring > autumn > summer, and the spatial distribution of PM2.5 concentration in old urban areas was significantly higher than that in new districts/suburbs.The atmospheric PM2.5 concentration was negatively correlated with air temperature, relative humidity, precipitation and wind speed, and positively correlated with air pressure. Conclusion The atmospheric PM2.5 pollution in Hefei City presents obvious spatial and temporal distribution characteristics, and meteorological factors are important factors affecting its distribution characteristics.
Key words
PM2.5 /
Distribution characteristics /
Meteorological factors
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References
[1] 白春礼.中国科学院大气灰霾研究进展及展望[J].中国科学院院刊,2014, 29(3):275-281.
[2] 中国清洁空气联盟秘书处.中国清洁空气联盟发布“大气十条”实施情况分析报告—PM2.5污染程度总体下降显著[N].中国环境报,2016-08-02(5).
[3] 中华人名共和国环境保护部.2016年中国环境状况公报[R].2016.
[4] 中华人名共和国环境保护部.2017年中国环境状况公报[R].2017.
[5] 刘珏.四季的划分[EB/OL].中国气象报(1992-01-06)[2019-08-01].http://www.cma.gov.cn/kppd/kppdqxwq/kppdjckp/201212/t20121205_194357.html.
[6] World Health Organization(WHO).Health effects of particulate matter.Policy implications for countries in eastern Europe,Caucasus and central Asia[S].Copenhagen: WHO Regional Office for Europe,2013.
[7] Rice MBI,Ljungman PL,Winker EH,et al.Long-term exposure to traffic emissions and fine particulate matter and lung function decline in the Framingham heart study[J].Am J Respir Crit Care Med,2015,191(6):656-664.
[8] To T, Zhu J, Villeneuve PJ, et al.Chronic disease prevalence in women and air pollution--A 30-year longitudinal cohort study[J].Environ Int,2015, 80 (7) : 26-32.
[9] Lozano R, Naghavi M, Foreman K, et al.Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the global burden of disease study 2010[J].Lancet, 2012, 380(9859):2095-2128.
[10] 蒲慧玲.英国雾霾治理政策体系及其启示[J].青海环境,2017,27(4):198-201.
[11] 陈芳.福州、厦门地区PM2.5时空分布特征及影响因素研究[J].化学工程与装备,2016,12:277-283.
[12] 高嵩,田蓉,郭彬等.长三角典型城市PM2.5浓度变化特征及与气象要素的关系[J].科学技术与工程,2018,18(3):142-155.
[13] 汪漪,王思颖,欧恺.6月份合肥空气质量全国倒数14,排名创新低[EB/OL].(2014-7-18)[2018-7-24].http://ah.anhuinews.com/system/2014/07/18/006490343.shtml.
[14] 环境卫星2014年6月份秸秆焚烧火点核定月报[R].环境保护部卫星环境应用中心,2014-7-9.
[15] 气象卫星2015年6月份秸秆焚烧火点核定月报[R].中国气象局国家卫星气象中心,2015-7-10.
[16] 环境卫星2016年6月份秸秆焚烧火点核定月报[R].环境保护部卫星环境应用中心,2016-7-10.
[17] 环境卫星2017年6月份秸秆焚烧火点核定月报[R].环境保护部卫星环境应用中心,2017-7-5.
[18] 合肥市大气污染防治现状、原因分析及对策措施[EB/OL].(2015-10-08)[2018-7-25].http://www.hffzb.gov.cn/11698/11702/201510/t20151008_1858037.html.
[19] Andrade MDF,Miranda RMD,Fornaro A,et al.Vehicle emissions and PM2.5,mass concentrations in six Brazilian cities[J].Air Quality,Atmosphere&Health,2012,5:79-88.
[20] 蒋维楣.空气污染气象学教程(第2 版)[M].北京:气象出版社,2004,8.
[21] 郑龙超,何平,张爱华.贵阳市大气PM2.5质量浓度分布及其与气象因素的相关性分析[J].职业与健康,2017,33(2):243-247.
[22] 孙冉,王成都,刘国东.2014年成都市PM2.5污染及其与气象要素的关系[J].环境工程,2015,33(增刊):472-475.
[23] 高嵩,田蓉,郭彬等.长三角典型城市PM2.5浓度变化特征及与气象要素关系[J].科学技术与工程,2018,18(9):142-155.
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