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银川市PM2.5来源探析
Author(s) -
江红 孟
Publication year - 2019
Publication title -
生态环境与保护
Language(s) - Uncategorized
Resource type - Journals
ISSN - 2630-4740
DOI - 10.32629/eep.v2i8.401
Subject(s) - business
采用自适应共振神经网络分类方法(Art-2a),分析银川市2019年5月大气细颗粒物(PM2.5)单颗粒样品中8种成分含量及来源。结果表明颗粒物成分占比由高到低排前三的分别为有机碳(38.8%),元素碳(22.6%),富钾(13.2%)总颗粒物来源贡献从大到小分别为燃煤(23.4%)、机动车尾气源(22.7%)、扬尘(21.4%)、工业工艺(13.4%)、二次无机源(8.0%)、生物质燃烧(5.2%)、餐饮(2.4%),其它源占3.5%。

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