Lead isotope trends and sources in the atmosphere at the artificial wetland

PeerJ

article

Ling Cong¹  Jiexiu Zhai¹  Guoxin Yan¹  Jiakai Liu¹  Yanan Wu¹  Yu Wang¹  Zhenming Zhang¹  Mingxiang Zhang¹ 

[1] College of Nature Conservation, Beijing Forestry University

关键词: Total suspended particulate matter;    Lead concentration;    Lead isotope ratio;    EF values;    Artificial wetland;   

DOI  :  10.7717/peerj.7851

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

With the rapid development of industry, studies on lead pollution in total suspended particulate matter (TSP) have received extensive attention. This paper analyzed the concentration and pollution sources of lead in the Cuihu Wetland in Beijing during the period of 2016–2017. The results show that the lead contents in TSP in the Cuihu Wetland were approximately equal in summer and spring, greater in winter, and greatest in autumn. The corresponding lead concentrations were 0.052, 0.053, 0.101, and 0.115 ng/m3, respectively. We compared the 206Pb/207Pb data with other materials to further understand the potential sources of atmospheric lead. The mean values of 206Pb/207Pb from spring to winter were 1.082, 1.098, 1.092, and 1.078, respectively. We found that the lead sources may be associated with coal burning, brake and tire wear, and vehicle exhaust emissions. We also calculated the enrichment factor values for the four seasons, and the values were all much greater than 10, indicating that the lead pollution is closely related to human activities.

【 授权许可】

CC BY