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- Title
Vertical profile, contamination assessment of mercury and arsenic in sediment cores from typical intertidal zones of China.
- Authors
Wang, Chenchen; Pan, Dawei; Han, Haitao; Hu, Xueping
- Abstract
The vertical profiles, contamination levels, and potential ecological risks of mercury and arsenic were studied from the sediment cores of seven typical intertidal zones, including the Liaohe River Estuary, the Jianhe River Estuary, the Dagu River Estuary, Yancheng Shoal, the Dongtan Yangtze River Estuary, Hangzhou Bay, and the Pearl River Estuary. Marine sediment quality standards, the threshold effect level (TEL), and the probable effect level (PEL) were used as guidelines to evaluate sediment quality. In addition, the geo-accumulation index (Igeo) and potential ecological risk index (Eri<inline-graphic></inline-graphic>) were used to assess contamination and potential ecological risks from mercury and arsenic. The results showed that the Pearl River Estuary was moderately polluted by mercury and represented a high potential ecological risk, while other areas were uncontaminated or mildly contaminated with low or moderate potential ecological risks. The Pearl River Estuary was mildly polluted by arsenic and represented a mild potential ecological risk, while other areas were unpolluted and also posed a mild potential ecological risk.
- Subjects
CHINA; MERCURY &; the environment; ARSENIC &; the environment; SEDIMENTS; INTERTIDAL zonation; ECOLOGICAL risk assessment
- Publication
Environmental Monitoring & Assessment, 2018, Vol 190, Issue 6, p1
- ISSN
0167-6369
- Publication type
Article
- DOI
10.1007/s10661-018-6732-1