吕梁市道路尘重金属污染特征及评价  

Characteristic and Evaluation of Road Dust Pollution by Heavy Metal of Luliang

作　　者：王莹[1,2] Wang Ying(Department of Chemical and Material Engineering Lyuliang University,Luliang 033000,China;Institute of New Carbon-based Materials and Zero-carbon and Negative-carbon Technology,Luliang 033000,China)

机构地区：[1]吕梁学院化工与材料工程系,山西吕梁033000 [2]碳基新材料及零碳负碳利用技术研究所,山西吕梁033000

出　　处：《广东化工》2024年第18期139-141,153,共4页Guangdong Chemical Industry

基　　金：吕梁市细颗粒物和臭氧污染协同防控“一市一测”驻点跟踪研究(LLXYHX202309-13)。

摘　　要：通过采集吕梁市离石区、方山县、柳林县、中阳县不同功能区的道路尘样品,用原子吸收光谱仪测定土壤中镍、铜、铅、锌、镉的含量,并评价其污染程度。地累积污染指数法结果表明吕梁市道路尘中重金属元素的污染水平是Cd>Pb>Ni>Zn>Cu。其中Pb属于较重污染,Cd属于严重污染;潜在生态风险指数法结果表明:道路尘中重金属元素达到严重生态危害,重金属元素Pb、Cd污染严重,浓度超标可能与工业生产、燃煤及机动车尾气排放有关。Collecting road dust samples in Lishi district,Fangshan county,Liulin county and Zhongyang county of Luliang.The contents of Ni,Cu,Pb,Zn and Cd in the road dust were determined by atomic absorption spectrometry.The pollution levels of heavy metals were assessed with Geo-accumulation Pollution Index and Potential Ecologically Risk Assessment Index.The assessment results of Geo-accumulation Pollution Index revealed that the element of Cu,Zn,Ni were not exceeded in each functional area,whereas all the other elements caused contamination to certain extend and the contamination of Cd was the most serious one.The Potential Ecologically risk assessment results shown that the level of heavy metal pollution and ecological harm were above heavy.The excess of these elements in road dust primarily from commercial production,coal combustion and emission of motor vehicles.

关 键 词：吕梁市 道路尘 重金属污染 评价 

分 类 号：TQ[化学工程]