Temporal and spatial distributions and sources of heavy metals in atmospheric deposition in western Taihu Lake, China
文献类型：期刊论文
| 作者 | Li, Yan; Zhou, Shenglu; Jia, Zhenyi; Liu, Ke; Wang, Genmei |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2021 |
| 卷号 | 284 |
| 英文摘要 | Heavy metals in atmospheric dust can directly pollute the soil, water and sediment, causing serious harm to human health. In this study, the temporal and spatial distribution characteristics of heavy metals in atmospheric deposition in western Taihu Lake were studied. We established 10 sampling sites to collect atmospheric deposition for two years in different seasons. The atmospheric deposition flux follows the order urban area (95.6 g m-; 2.a- 1) > suburban area (80.2 g m- 2.a- 1) > forestland (56.8 g m- 2.a- 1). The concentrations of heavy metals in atmospheric deposition show trends of high values in the winter and low values in the summer and are significantly negatively correlated with distance from the city. The pollution level of Igeo-Cd is 6, which is very high, and that of E-Cd is 219, which means high risk. Heavy metals in atmospheric deposition are mainly taken up via hand-mouth intake, and the harm to children is significantly higher than the harm to adults. The highest health risk assessment values for the four analyzed heavy metals in atmospheric deposition are located near the city and in suburbs (within 5 km of the city center), that is, in areas where human activities are concentrated. The health risk assessment values in areas outside the suburbs are low; these areas are less affected by human activities. The health risk assessment values of heavy metals in the winter and spring are higher than those in the summer and autumn. The Pb isotope ratios show that the main sources of heavy metals in atmospheric deposition and local soil are human activities, such as industry and coal combustion, with less input from natural sources. Heavy metals in atmospheric deposition in the western part of Taihu Lake not only directly threaten local human health but also enter Taihu Lake, posing a serious threat to the Taihu Lake ecosystem. |
| 源URL | [http://159.226.73.51/handle/332005/20413]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Li, Yan,Zhou, Shenglu,Jia, Zhenyi,et al. Temporal and spatial distributions and sources of heavy metals in atmospheric deposition in western Taihu Lake, China[J]. ENVIRONMENTAL POLLUTION,2021,284. |
| APA | Li, Yan,Zhou, Shenglu,Jia, Zhenyi,Liu, Ke,&Wang, Genmei.(2021).Temporal and spatial distributions and sources of heavy metals in atmospheric deposition in western Taihu Lake, China.ENVIRONMENTAL POLLUTION,284. |
| MLA | Li, Yan,et al."Temporal and spatial distributions and sources of heavy metals in atmospheric deposition in western Taihu Lake, China".ENVIRONMENTAL POLLUTION 284(2021). |
入库方式： OAI收割
来源：南京地理与湖泊研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。