Abstract:“Standardized” Anodonta woodiana mussels, with the same biological factors, stable inherited quality, and low contamination background, were transplanted to Wulihu Bay of Taihu Lake for assessment of heavy metal pollution. Meanwhile, the same batch mussels were continually reared in the unpolluted pond of Nanquan Aquatic Base of Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences as control. Ten individuals were recollected every three months to determine heavy metal (Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Mo, Ag, Cd, Ba, Tl, and Pb) concentrations using an inductively coupled plasma mass spectrometer (ICP-MS). The results showed that metal bioaccumulation in the mussels appeared to be transplant period-/seasonal-dependent and the higher concentrations were generally found in the spring-collected mussels than in the summer-collected mussels. Additionally, concentrations of Mo and Tl in the mussels transplanted to Wulihu Bay for three months were significantly higher than those in the control mussels of Nanquan Aquatic Base (P<0.05), while concentration of Ba in the former was significantly lower than the latter (P<0.05). Concentration of As in mussels transplanted to Wulihu area for six months were significantly lower (P<0.05) than that in the control mussels. Nevertheless, both aquatic environments of Wulihu Bay and Nanquan Aquatic Base should be without obvious pollution by the aforementioned metals, based on the assessment of integrated metal pollution index (MPI) and comparison with the corresponding national and international residual limits for aquatic products.
陈修报, 苏彦平, 刘洪波, 杨健. 移殖“标准化”背角无齿蚌监测五里湖重金属污染[J]. 中国环境科学, 2014, 34(1): 225-231.
CHEN Xiu-Bao, SU Yan-Ping, LIU Hong-Bo, YANG Jian. Biomonitoring of heavy metal pollution in Wulihu Bay of Taihu Lake by transplanting “standardized” Anodonta woodiana. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(1): 225-231.