研究论文
杨丽萍,陈发虎.兰州市大气降尘污染物来源研究[J].环境科学学报,2002,22(4):499-502
兰州市大气降尘污染物来源研究
- Study on the source apportionment of atmospheric dust pollutants in Lanzhou
- 基金项目：自然科学基金项目(项目批准号:49731010)
- 作者
- 单位
- 杨丽萍
- 兰州大学资源环境学院,兰州 730000
- 陈发虎
- 兰州大学资源环境学院,兰州 730000
- 摘要：运用因子分析法,研究了兰州市大气降尘的污染来源及各源所占的比例.结果表明4种污染源是兰州市大气降尘的主要来源,按贡献率大小依次为:燃煤41.04%,风沙扬尘22.97%,汽车尾气18.67%,建材12.84%,其它约44.8%.
- Abstract：atmospheric dust samples were collected at Lanzhou University and factor analysis was used to identify the sources. The results showed that there were four sources as the major contributors. About 41.04% of the dust came from coal combustion and 22.97% from wind-blown sand and soil, while motor vehicle emission and building materials accounted for 18.67% and 12.84% respectively, and 4.48% of the dust was from other sources.
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