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本文对当前大气颗粒物上PAHs的识别和源解析的定量及定性和半定量的方法进行了综述。定性及半定量方法简便易行,但误差大;化学质量平衡法(CMB)结果较准确具体,但PAHs会发生化学反应而降解,并且没有各种燃烧源较完整的PAHs成份谱,这已成为CMB广泛推行的障碍;多元统计方法不考虑PAHs的降解,但要求数据量大。国内外的科学工作者用不同的方法和手段,使PAHs来源的识别和源解析工作有了一定进展。
This review summarizes the quantitative and qualitative and semi-quantitative methods for the identification and source resolution of PAHs in atmospheric particulates. Qualitative and semi-quantitative methods are simple and easy to implement, but their errors are large. CMB results are accurate and specific, but PAHs undergo chemical reactions to degrade, and there is no complete PAHs component spectrum from various combustion sources. This has become CMB widespread barriers; multivariate statistical methods do not consider the degradation of PAHs, but requires a large amount of data. Different methods and means have been used by scientists at home and abroad to make some progress in the identification and source analysis of PAHs sources.