摘要
利用近3年长春市环境监测资料与同期的气象资料,统计分析了长春市主要污染物PM10的季节演变特征,并对PM10浓度与平均气温、降水量、相对湿度、能见度、平均风速和气压6个气象要素的统计相关性进行了初步研究。结果表明,3年中PM10年均浓度没有明显起伏,均在0.097～0.100mg/m3;PM10浓度具有明显的季节变化特征,冬季采暖期最高,春季沙尘期次之,夏季降雨期最低;3年中PM10污染以II级为主,占87.7%;PM10污染较重的当天,往往会伴随出现雾、烟幕、大风、沙尘等天气现象;PM10浓度与平均气温、降水量、能见度和平均风速呈显著负相关;与相对湿度和气压呈显著正相关。
Based on the environment monitoring data and the meteorological data in Changchun City during the last three years,seasonal variation characteristics of main pollutant PM10 were analyzed.A linear correlation analysis on the relativity between PM10 concentration and the six meteorological factors such as average temperature,rainfall,relative humidity,visibility,average wind speed and air pressure was made.It indicated that the PM10 concentration had no significant increasing and decreasing trend from 2006 to 2008,is about 0.097-0.100 mg/m^3.The PM10 concentration in Changchun had significant characteristics of seasonal variation;it is obviously a bit high in winter and spring,while is lower in summer than other three seasons.The PM10 pollution primarily belongs to level II in the recent 3 years,accounting for 87.7%.PM10 pollution is heavier on the day which often accompanying with the weather phenomenon such as fog,smog,gale and dust.The correlation coefficients between PM10 concentrations and the meteorological factors such as average temperature,rainfall,visibility and average wind are negative.The correlation coefficients between PM10 concentrations and the meteorological factors such as relative humidity and air pressure are positive.
出处
《安徽农业科学》
CAS
北大核心
2010年第15期8034-8036,共3页
Journal of Anhui Agricultural Sciences
基金
科技部社会公益研究专项(2005-DIB2J111)
2009年中国气象局沈阳大气环境研究所基本科研业务费项目(SYKYYW200901)
关键词
PM10
季节变化
气象要素
PM10
Seasonal variation
Meteorological factors
