内蒙古典型煤炭基地工业园大气TSP化学特征探究

Chemical Properties of Atmospheric TSP in Typical Coal Base Industrial Parks in Inner Mongolia

监测2015年夏季内蒙古乌达-乌斯太工业园大气颗粒物TSP样品中多种无机元素和碳质组分,结果表明:工业园的TSP日均浓度明显高于国家环境空气质量标准,相关监测无机元素浓度均显著高于背景区乌海湖小岛。工业园碳质(OC/EC)测定值显著高于背景区,总碳气溶胶占比26.8%,其中以乌斯太工业园和乌达工业园采样点TCA占比较高。采用因子分析法对颗粒物元素组分分析发现主要有4类来源:园内复合地表污染扬尘、上风向地下煤火衍生污染物、交通源、园内燃煤电厂排放,贡献率分别为67%、27%、5%、1%。

The mass concentrations of inorganic elements and carbon components in atmospheric TSP samples from Wuda-wusitai industrial parks in Inner Mongolia were monitored in the summer of 2015.The results showed that the daily average of TSP concentration was well above national ambient air quality standards.The concentrations of inorganic elements were all significantly higher than the background values from Wuhai Lake island.The measurement of carbon components(OC/EC)in the industrial parks were significantly higher than the background value.Total carbon aerosol(TCA)accounted for 26.8%,and high proportion of TCA appeared in Wusitai industrial park and Wuda industrial park.The results of component analysis by factor analysis method showed that the particulate matter had four main sources:complex ground dust,pollutants derived from upwind underground coal fires,traffic source,and emission from coal-fired power plants in the parks,whose contribution rates were 67%,27%,5%,1%,respectively.