Liu Tiansheng, Zhang Yuankai, Liu Yuying, Chen Bo
College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 515000, China.
College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 515000, China; Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, Qinzhou 515000, China.
Mar Pollut Bull. 2025 Feb;211:117442. doi: 10.1016/j.marpolbul.2024.117442. Epub 2024 Dec 13.
The study of heavy metal content in the sediments of the coastal zone of Qinzhou Harbour was used to analyse the level, distribution and sources of heavy metal pollution in the region and its hazards to the ecological environment and human health. The results showed that the average concentrations of Mn, Ni, Cr, Cu, and Pb exceeded background values along the shores of Qinzhou Harbour, Guangxi. Comprehensive assessments using Igeo, RI, and PLI identified Cu, Ni, and Pb as primary contaminants in the area, presenting slight to moderate ecological risks and biological toxic effects. Source analysis suggested that these metals primarily originated from anthropogenic activities including shipbuilding, chemical plant discharges, oil refining, and industrial smelting. Integrating SQGs with human health risk models revealed carcinogenic risks associated with Ni exposure, particularly for children. However, noncarcinogenic risks were not significant, and the risk to children was higher than to adults.
通过对钦州港海岸带沉积物中重金属含量的研究，分析了该区域重金属污染的水平、分布、来源及其对生态环境和人类健康的危害。结果表明，广西钦州港沿岸的锰、镍、铬、铜和铅的平均浓度超过了背景值。利用地积累指数、潜在生态风险指数和污染负荷指数进行的综合评估确定，铜、镍和铅是该地区的主要污染物，呈现出轻微至中度的生态风险和生物毒性效应。源分析表明，这些金属主要来源于造船、化工厂排放、炼油和工业冶炼等人为活动。将沉积物质量基准与人类健康风险模型相结合，发现镍暴露存在致癌风险，尤其是对儿童。然而，非致癌风险不显著，儿童面临的风险高于成人。
