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- Title
Health Risk Assessment and Source Analysis of Soil Heavy Metal Pollution in an Abandoned Lead and Zinc Concentrator.
- Authors
NIU Tianyang; CHENG Yuchen; LI Chunliang; CHEN Jingying
- Abstract
Taking an abandoned lead-zinc concentrator in Northwest China as the research object, analysis of the content changes and spatial distribution characteristics of Cu, Zn, Ni, As, Hg, Pb and Cd in the soil of the site, conduct health risk assessment on site soil and explore its source through principal component and correlation analysis. The results showed that Pb, As, Cd, Zn and Hg all exceeded the standard in different degrees in the site soil, and the maximum exceedance multiples were 14. 75, 7. 6, 3. 71, 9. 16 and 1. Irrespectively. The areas with more serious pollution are mainly distributed in the production workshop, product sedimentation tank, raw material stacking area and product stacking area. With the increase of soil depth, the content of excessive heavy metals shows a downward trend. The sources of Cu, Zn, Ni, As, Pb and Cd are the same, which may be related to the production of lead concentrate and zinc concentrate;there is no obvious correlation between Hg and other sources of heavy metals, which may be the pollution caused by foreign soil. According to the results of site health risk assessment, As, Pb and Cd exceed the acceptable risk level for human body, and effective restoration methods and control measures should be taken as soon as possible.
- Subjects
HEALTH risk assessment; HEAVY metal toxicology; ANALYSIS of heavy metals; LEAD; HEAVY metals; ZINC; MERCURY
- Publication
Nonferrous Metals Engineering, 2022, Vol 12, Issue 10, p145
- ISSN
2095-1744
- Publication type
Article
- DOI
10.3969/j.issn.2095-1744.2022.10.020