摘要
分别在佛山市城区有代表性的季华路(主干道)、同济路(次干道)、华远西路(支路)路边,采集了PM2.5样品,并分析了样品中12种金属元素和9种水溶性离子的含量。结果表明:佛山市城区各道路环境PM2.5日均浓度的由大到小依次为:季华路(173.3μg/m3)、同济路(141.2μg/m3)、华远西路(126.0μg/m3),与车流量之间具有显著的正相关关系,且均高于同期城区PM2.5的日均浓度64.5μg/m3。3个采样点检出金属元素中含量较高的是Fe、Al、Ca、Mg,其次是Zn和Pb。不同道路环境中Al、Ca、Mg、Zn和Pb元素的浓度由大到小均依次为:季华路、同济路、华远西路。富集因子分析表明佛山市城区道路环境人为污染较严重的金属元素为Cd、Zn、Pb、As。采样期间SO42-、NO3-和NH4+是主要的水溶性离子。
On the side of representative Jihua road(main road),Tongji road(secondary main road),Huayuanxi road(branch) in Foshan city, PM2.5samples were collected. And 12 kinds of metal elements and 9 kinds of water- soluble ions in PM2.5have been analyzied. Results showed that the daily average concentration of PM2.5in traffic environment of Foshan city were in order: Jihua road(173.3 μg/m3), Tongji road(141.2 μg/m3), Huayuanxi road(126.0 μ g/m3), had a significant positive correlation with traffic and were higher than the daily average concentration of PM2.5in urban 64.5 μg/m3. The contents of Fe、Al、Ca、Mg were higher, followed by Zn and Pb in three sampling points. These metals concentrations in each traffic environment were tested highest in Jihua road,followed by Tongji road and Huayuanxi road.The analysis of enrichment factor showed that the pollution of Cd,Zn, Pb, As were the most serious from man- made source. During sampling, SO42-, NO3-and NH4+were the main water- soluble ions of road environment.
出处
《佛山科学技术学院学报（自然科学版）》
CAS
2015年第2期42-46,共5页
Journal of Foshan University(Natural Science Edition)
基金
佛山科技发展专项资金资助项目(2012AA100381)
