Assessment of metals pollution in seawater and sediment from the western Xuwen offshore area, Leizhou Peninsula, China

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2025-04-05 DOI:10.1016/j.marpolbul.2025.117925

Hongbin Zeng , Xiaolong Shen , Jian-Yu Dong , Gorka Bidegain , Xuefeng Wang

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引用次数: 0

Abstract

This study evaluated metals pollution in the western Xuwen offshore area (Leizhou Peninsula, China) by analyzing seawater and sediment samples collected during summer 2021–2022. The concentrations, distribution patterns, and ecological risks of Hg, Cd, Pb, Cr, As, Cu, and Zn were assessed using water quality index (WQI), degree of contamination index (DC), geo-accumulation index (I_geo), metals pollution index (HPI), pollution load index (PLI), and potential ecological risk index (RI). Results showed metals levels varied spatially and temporally. The WQI and DC indices indicated low seawater pollution across stations in both years, while HPI highlighted site-specific contamination in 2021. Sediment analysis revealed reduced pollution in 2022, suggesting an improvement in ecological quality. The findings emphasized the need for targeted monitoring of identified high-risk areas and inconsistencies in single-metric evaluations. Furthermore, this study provides information for evidence-based policy frameworks for regional coastal management strategies.

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来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.