摘要
为探讨福州市城区夏冬两季黑炭气溶胶污染特征,2011年7月和12月在福州市紫阳监测站楼顶使用AE-31型黑炭仪监测黑炭气溶胶污染。结果表明:①夏季黑炭浓度为2.3±0.9μg/m3,冬季黑炭浓度为3.2±1.3μg/m3,冬季黑炭浓度高于夏季。从频数分布图来看夏季黑炭浓度更为集中。②夏季黑炭浓度日变化具有明显的峰值和谷值,冬季黑炭日变化趋势图并没有统一出现峰值和谷值。夏季和冬季日变化趋势的差异是由大气扩散条件、气象因素及污染物来源等的不同导致的。③通过对黑炭浓度与PM2.5浓度之间相关性分析表明,黑炭与PM2.5显著正相关,表明黑炭与PM2.5有着相似的来源。
In order to study pollution characteristics of black carbon （BC） aerosol in the summer and winter in urban area of Fuzhou,model AE-31 aethalometer was used to monitor BC aerosol pollution respectively in July and December.The results show：①BC concentration in summer was 2.3 ± 0.9 μg/m3,and BC concentration in winter was 3.2 ± 1.3.t.g/m3.It showed BC concentration in winter was higher than that in summer.The frequency distribution indicated that BC concentration was more intensively distributed in summer than that in winter.②The diurnal tendency of BC concentration in summer showed obviously a peak and a valley.But the diurnal tendency in winter was different with that in summer,with no uniform peak and valley.The difference of diurnal tendency between summer and winter was caused by atmospheric dispersion conditions,meteorological factors and different sources of pollutants,etc.③The correlation analysis between BC concentration and PM2.5 concentration showed that BC and PM2.5 had a significant positive relationship.It was indicated BG and PM2.5 were from similar sources.
出处
《中国环境监测》
CAS
CSCD
北大核心
2013年第6期34-38,共5页
Environmental Monitoring in China
基金
环保部公益性行业专项(201009004)
关键词
黑炭
污染特征
福州
black carbon
pollution characteristics
fuzhou
作者简介
陈晓秋（1963-），女，福建福州人，教授级高工．
通讯作者：徐亚
