合肥市PM_(2.5)的分布特征及其要素分析
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摘要
对2013年合肥市的PM_(2.5)质量浓度、各类空气中污染物、气象要素等数据进行统计处理,通过定性、定量分析,得出PM_(2.5)质量浓度与其他各量间的相关性.结果表明,合肥地区雾霾情况较为严重,除7月份外,PM_(2.5)质量浓度超标率超标率均在87%以上,且冬季更为明显.工业较为发达的庐阳区PM_(2.5)质量略浓度高于其他地区.由Pearson相关性分析可知,PM_(2.5)质量浓度与PM_(10)浓度、NO_2浓度、SO_2浓度等有较强相关性;与能见度、温度、风速、平均低云量、降水量等呈负相关性;与逐日平均总云量、平均相对湿度、平均气压无相关性.
Through data statistics processing,qualitative and quantitative analysis of the statistics in hefei in 2013 such as PM_(2.5) mass concentration,air pollutants and meteorological elements,we conclude the correlation between PM_(2.5) mass concentrations and other elements.The results show that the fog in hefei area is relatively serious,besides in July,PM_(2.5) mass concentration is all over 87%,which is more obvious in winter.The PM_(2.5) mass concentration in luyang,there industry is more developed,is slightly higher than other areas.By Pearson correlation analysis,there is strong correlation between PM_(2.5) and PM_(10) concentration,concentration of NO_2,SO_2 concentration,etc.While it shows negative correlation between PM_(2.5) mass concentration and visibility,temperature,wind speed,average low cloud cover,precipitation,etc,and no correlation with the daily average total cloud cover,the average relative humidity,average pressure.
Through data statistics processing,qualitative and quantitative analysis of the statistics in hefei in 2013 such as PM_(2.5) mass concentration,air pollutants and meteorological elements,we conclude the correlation between PM_(2.5) mass concentrations and other elements.The results show that the fog in hefei area is relatively serious,besides in July,PM_(2.5) mass concentration is all over 87%,which is more obvious in winter.The PM_(2.5) mass concentration in luyang,there industry is more developed,is slightly higher than other areas.By Pearson correlation analysis,there is strong correlation between PM_(2.5) and PM_(10) concentration,concentration of NO_2,SO_2 concentration,etc.While it shows negative correlation between PM_(2.5) mass concentration and visibility,temperature,wind speed,average low cloud cover,precipitation,etc,and no correlation with the daily average total cloud cover,the average relative humidity,average pressure.
引文
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[2]岳常丽,刘红刚.空气细颗粒物(PM2.5)及其致病性的研究现状[J].临床与实验病理学杂志,2009,25(4):437-439.
[3]Schwartz J.Harvesting and Long Teen Exposure Effects in the Relation Between Air Pollution and Mortality[J].American Journal of Epidemiology,2000,141(5):440-448.
[4]王润清.雾霾天气气象学定义及预防措施[J].现代农业科技.2012(7):44-45.
[5]王勇,刘严萍,李江波,等.水汽和风速对雾霾中PM2.5/PM10变化的影响[J].灾害学,2015,30(1):5-7.
[6]朱倩茹,刘永红,徐伟嘉,等.广州PM2.5污染特征及影响因素分析[J].中国环境监测,2013,29(2):15-21.
[7]吴兑,毕雪岩,邓雪娇,等.珠江三角洲大气灰霾导致能见度下降问题研究[J].气象学报,2006,64(4):510-517.
[8]梁明易,董林,陶俊.广州冬季霾天气大气PM2.5污染特征分析[J].中国环境监测,2007,23(5):52-54.
[9]陈慧娟,刘君峰,张静玉,等.广州市PM2.5和PM1.0质量浓度变化特征[J].环境科学与技术,2008,31(10):87-91.
[10]Wang J,Hu Z M,Chen Y,et al.Contamination Characteristics and Possible Sources of PM10and PM2.5in Different Functional Areas of Shanghai,China[J].Atmospheric Environment,2013,68:221-229.
[11]周丽.北京地区PM10和PM2.5质量浓度的变化特征[J].气象学报.2003,61(6):761-767.
目录