We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Pollution Characteristics and Risk Assessment of Heavy Metals in the Sediments of the Inflow Rivers of Dianchi Lake, China.
- Authors
He, Liwei; Chen, Guangye; Wang, Xinze; Shen, Jian; Zhang, Hongjiao; Lin, Yuanyuan; Shen, Yang; Lang, Feiyan; Gong, Chenglei
- Abstract
To explore the contamination status and identify the source of the heavy metals in the sediments in the major inflow rivers of Dianchi Lake in China, sediment samples were collected and analyzed. Specifically, the distribution, source, water quality, and health risk assessment of the heavy metals were analyzed using correlation analysis (CA), principal component analysis (PCA), the heavy metal contamination factor (Cf), the pollution load index (PLI), and the potential ecological risk index (PERI). Additionally, the chemical fractions were analyzed for mobility characteristics. The results indicate that the average concentration of the heavy metals in the sediment ranked in the descending order of Zn > Cr > Cu > Pb > As > Ni > Cd > Hg, and most of the elements existed in less-mobile forms. The Cfwas in the order of Hg > Zn > Cd > As > Pb > Cr > Ni; the accumulation of Hg, Zn, Cd, and As was obvious. Although the spatial variability of the heavy metal contents was pronounced, the synthetical evaluation index of the PLI and PERI both reached a high pollution level. The PCA and CA results indicate that industrial, transportation, and agricultural emissions were the dominant factors causing heavy metal pollution. These results provide important data for improving water resource management efficiency and heavy metal pollution prevention in Dianchi Lake.
- Subjects
CHINA; ECOLOGICAL risk assessment; HEAVY metals; POLLUTION risk assessment; RIVER sediments; WATER management; HEAVY metal toxicology; HEALTH risk assessment
- Publication
Toxics, 2024, Vol 12, Issue 5, p322
- ISSN
2305-6304
- Publication type
Article
- DOI
10.3390/toxics12050322