深圳市道路扬尘化学组分特征及来源研究  

Study on Chemical Composition Characteristics and Sources of Road Dust in Shenzhen

作　　者：黄晓波 刘冠伦 梁永贤 颜敏 Huang Xiaobo;Liu Guanlun;Liang Yongxian;Yan Min(Shenzhen Academy of Environmental Sciences,Guangdong,518000)

机构地区：[1]深圳市环境科学研究院,广东518000

出　　处：《当代化工研究》2024年第18期105-107,共3页Modern Chemical Research

摘　　要：本研究针对深圳市34条典型道路开展了道路扬尘样品采集工作,并分析了其化学组分,建立了深圳市道路扬尘PM_(10)和PM_(2.5)成分谱,利用富集因子法、特征组分比值法等识别了深圳市道路扬尘的主要来源。结果表明:(1)深圳市道路扬尘PM_(10)和PM_(2.5)化学组分相似,均以OC、Si、Ca、Al、Fe、Ca^(2+)、EC、K和Mg等组分为主。(2)道路移动源、工业源、以SO_(2)排放为主的固定源和二次有机生成过程是深圳市道路扬尘的主要来源。(3)道路扬尘可以视为上述污染源的汇,上述排放源减排对道路扬尘减排应有一定协同作用。This study analysed the chemical components of road dust samples collected from 34 typical roads in Shenzhen.The PM_(10) and PM_(2.5) source profiles of road dust in Shenzhen were developed,and the main sources of road dust in Shenzhen were identified by using the method of enrichment factor and the characteristic component ratio.The results show that:(1)The chemical components of PM_(10) and PM_(2.5) in road dust in Shenzhen are similar.They are dominated by OC,Si,Ca,Al,Fe,Ca^(2+),EC,K,and Mg.(2)Road mobile sources,industrial sources,stationary sources,and the generation of secondary organic particulate matter are the main sources of road dust in Shenzhen.(3)As road dust can be considered a sink for these sources,the reduction of emissions from the above sources should have a synergistic effect on the reduction of road dust.

关 键 词：道路扬尘 PM_(10) PM_(2.5) 成分谱 深圳市 

分 类 号：X3[环境科学与工程—环境工程]