广西科学2025，Vol.32Issue(1)：19-26,8.DOI:10.13656/j.cnki.gxkx.20250328.001
北部湾潮间带贝类(丽文蛤)5年重金属分布特征及风险评价
Distribution Characteristics and Risk Assessment of Heavy Met-als in Meretrix lusoria in the Intertidal Zone of the Beibu Gulf
摘要
Abstract
The aim of this study is to unveil the heavy metal pollution of organisms in the intertidal zone of the Beibu Gulf.The common dominant bivalves species,Meretrix lusoria,in this area was selected as a bioindica-tor.The concentrations of 7 heavy metals(Hg,Cu,Pb,Zn,Cd,Cr,and As)in M.lusoria were monitored from 2019 to 2023 to assess their temporal and spatial distribution patterns.The single-factor pollution in-dex,Nemerow comprehensive index,and Metal Pollution Index(MPI)were used for evaluation.The results indicated that the heavy metal concentrations in M.lusoria in this sea area followed the order of Zn＞Cu＞As＞Cr＞Cd＞Pb＞Hg.The heavy metals concentrations showed distinct annual variations,with significant differences observed among the three coastal cities studied.However,the overall pollution levels remained consistent,indicating a state of mild pollution,which was primarily caused by As and Pb.There is a year-by-year increasing trend in comprehensive heavy metal pollution in the Beibu Gulf,underscoring the necessity for ongoing monitoring of heavy metal dynamics in marine organisms.关键词
北部湾/重金属/丽文蛤/风险评价Key words
Beibu Gulf/heavy metal/Meretrix lusoria/risk assessment分类
海洋学引用本文复制引用
陈玲,徐晓帆,蓝文陆,邓琰..北部湾潮间带贝类(丽文蛤)5年重金属分布特征及风险评价[J].广西科学,2025,32(1):19-26,8.基金项目
广西重点研发计划项目(桂科AB22035035),广西科技基地和人才专项(桂科23-026-271)资助. （桂科AB22035035）
