关键词:
环境分析化学
重金属
湿地科学
BCF
摘要:
Concentrations of heavy metals in the intertidal gastropod Nerita lineata collected from 4 sampling stations in the intertidal zone of Dumai coastal waters have been analyzed and correlated with the respective metal concentrations in their *** objective of this study was to evaluate the possible relationships between heavy metal concentrations in the *** with metal concentrations in their habitat,which include seawater,algal mat,suspended particulate matter,and surface *** results showed that heavy metal concentrations in the sediment,***,suspended particulate matter,algal mat and surface seawater were found to be higher in stations closed to Dumai city center which has more industrial and anthropogenic *** mean concentrations of Cd,Cu,Pb,Zn,Ni and Fe in the *** collected from Dumai intertidal area were 4.14 μg/g,5.90 μg/g,44.43 μg/g,3.74 μg/g,20.73 μg/g,24.91 μg/g in shell;4.16 μg/g,7.31 μg/g,51.78 μg/g,17.63 μg/g,23.52 μg/g,30.60 μg/g in operculum and 0.71 μg/g,15.09 μg/g,9.41 μg/g,94.42 μg/g,5.10 μg/g,398.24 μg/g dry weight in the total soft tissue,***,Pb and Ni concentrations of parts of the *** were in the order:that of operculum>shell>soft tissue whilst Cu,Zn and Fe concentrations of parts of the *** in the order:that of soft tissue>operculum>*** suggested that *** could be used as biomonitoring agent for Cu,Zn and Fe(soft tissues)and for Cd,Pb and Ni(operculum).However,the shell had significant correlations(P<0.05)with metal concentrations in the sediment,algal mat,suspended particulate matter and *** factor(BCF)values of the shell also revealed greater capacity for non-essential metals bioaccumulation from all environmental *** might suggest that the shell of *** could be better used as biomonitoring agent for heavy metal pollution.