厦门市大气可吸入颗粒物源解析的研究

采用2004～2005年对厦门大气中PM10开展的3期采样分析数据,利用主因子分析法定性分析厦门大气中可吸入颗粒物的主要来源,并结合多元线性回归法,求出定量的结果。分析结果表明,影响厦门市可吸入颗粒物的主要来源有四种:工业燃煤、汽车尾气、土壤风沙尘和海盐粒子,其中二次粒子为主要污染源,贡献率为30.0%,其次为汽车尾气占29.4%,土壤风沙和建筑尘的贡献约占21.7%,海洋粒子的贡献为6.5%,不可识别源18.1%。

Source Apportionment of Inhalable Particulates in Air of Xiamen City

Principal factor analysis as well as multiple linear regressions was used to qualitatively analyze data from three periods of PM10 samplings from 2004 to 2005 for the purpose to obtaining different source apportionment and contributions to PM10. Results showed that there were four main sources contributing to most of PM10 mass, including industrial pollution covering 30.0% as major contributor, together with vehicle exhaust covering 29.4% while 21.7% from windblown sand and soil, marine spray accounted for 6.5% and 18.1% from non-identified source.