Effect of typhoon Meihua(2022)on the distribution of heavy metals of Jiaozhou Bay
LIU Xiaosha
LI Hui
QIU Yilin
ZHANG Han
XIANG zhuangzhuang
Abstract：As one of the most severe weather events affecting the marine environment(including estuar-ies and bays),typhoon significantly affects the migration,transformation,exchange and transportation of substances in bays and biological and marine chemical processes.Based on the influence of typhoon Meihua in August,2022,this paper studied the changes of heavy metals(copper(Cu),lead(Pb),zinc(Zn),cadmium(Cd),chromium(Cr),arsenic(As)and mercury(Hg))in seawater,seabed sediments and organisms in Jiaozhou Bay,and expounded the transport characteristics and effects of typhoon on heavy metals in the bay.The comparative results were as follows:after the typhoon,the concentrations of most heavy met-als(Cu,Zn,Cd,Cr and As)in water showed an increasing trend,among which the concentration of Cr in-creased significantly(p＜0.05),and its average concentration was 9.2 times higher than that before the ty-phoon.However most of the heavy metals(Pb,Cu,Zn,Hg,Cr and As)in the sediments decreased after the typhoon,which may be related to the disturbance of the typhoon promoting the resuspension and redistribution of the surface sediments.In addition,the typhoon process not only promoted the increase of catch,but also promoted the enrichment of heavy metals(Cu,Pb and Cd)in fish(taking hairtail as an example)and crustaceans(taking dried shrimps as an example).
Keywords：Jiaozhou bayheavy metalstyphoon plum blossomseawatersedimentsorganism
Publication Date：2025-04-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 135-141 )