贝壳湾常见商业鱼类中选择性重金属(类金属)的暴露状况,空间变异与健康风险评估。
Exposure status, spatial variation, and health risk assessment of selected heavy metal(loid)s in common commercial fish species of the Beibu Gulf.
发表日期:2023 Sep 19
作者:
Jintao Li, Jiachen Sun, Wenxian Hu, Meng Yan, Bin Kang
来源:
MARINE POLLUTION BULLETIN
摘要:
鱼类被认为是重金属(类)污染的生物指标。本研究分析了北部湾十种常见鱼类肌肉中七种重金属(类)(包括铜、铬、镉、铅、锌、砷和汞)的含量,以了解污染物的状况及其对健康的风险。结果显示,所有的物种都受到了砷的严重污染。在保守估计的情景下,目标危害商数和健康指数表明,除了黑鮻之外,其他物种对人类的健康没有风险。在悲观估计的情景下,目标癌症风险和估算的每日摄入量显示,除了丝鳍鳗、横带鳗和方额鲳之外,其他物种对其消费者有致癌风险。北部湾居民对大多数物种中的砷和汞的每日摄入量超过了粮农组织推荐的临时最大容许量,因此建议适度消费这些物种。版权所有©2023 Elsevier Ltd. 保留所有权利。
Fishes are considered as biological indicators of heavy metal(loid)s pollution. In this study, contents of seven heavy metal(loid)s, including Cu, Cr, Cd, Pb, Zn, As, and Hg, in the muscles of ten common fish species in the Beibu Gulf were analyzed to figure out the pollutants status and their health risk. Results showed all species were largely contaminated by arsenic. Under conservative estimation scenario, target hazard quotient and health index revealed no health risk of species except Alepes kleinii. Under pessimistic estimation scenario, target cancer risk and estimated daily intake showed that, except Saurida undosquamis, Saurida tumbil, and Trachinotus ovatus, the remaining species were at risk of causing cancer for their consumers. Daily intake of arsenic and mercury in most species by residents in the Beibu Gulf exceeded provisional maximum tolerable amount recommended by FAO, suggesting the need of moderate consumption of these species.Copyright © 2023 Elsevier Ltd. All rights reserved.