利用二重源解析技术解析抚顺市大气颗粒物的来源

在利用CMB模型对大气颗粒物进行解析时经常遇到一组数据多种结果的现象,同时,扬尘属于混合尘源类,与一些单一尘源类之间可能存在严重的共线性,从而很难准确地解析出各单一尘源类对受体的贡献值.二重源解析技术较好地解决了上述问题.本文利用二重源解析技术对抚顺市的大气颗粒物来源进行了解析.解析结果表明扬尘、土壤风沙尘、煤烟尘和有机碳是抚顺市环境空气中TSP的四大排放源类,其贡献率分别为扬尘37.5%、土壤风沙尘15.9%、有机碳13.9%、煤烟尘6.0%.

Application of Improved Source Apportionment Technique of Atmospheric Particulate Matter in Fushun

The phenomenon of multi-conclusion resulted from the same group data occurred frequently when the source of atmospheric particulate matter was analyzed by CMB model.The dust emission belonged to mixed dust and might have collinearity with the single dust,so it was difficult to analyze the contribution of the single dust to the acceptor.The improved source apportionment technique succeeded in work out the problemsThe source of Fushun atmospheric particulate matter was analyzed by improved source apportionment technique in the paper.The results showed that dust emission,soil karaburan,soot and organic carbon were the biggest emission sources.The contributions were as follows: dust emission 37.5%,soil karaburan 15.9%,organic carbon 13.9% and soot6.0%.