海水中金属铅水质基准定值研究

为建立符合我国海洋生物对金属铅耐受能力的海水水质基准,依据可代表我国生物区系特征的生态毒理学数据基于评价因子法及物种敏感度分布模型,对金属铅的海水水质基准进行了推导.推导结果显示,不同的推导方法定值存在明显差异.基于物种敏感度分布模型法,铅的海水水质基准高值(HSWC)定值为275 μg/L;基于评价因子法,铅的海水水质基准低值(LSWC)定值为0.8 μg/L.推导结果可为我国海水水质标准的修订提供有益参考.

Study on seawater quality criteria for lead

Saltwater quality criteria were the scientific basis for the establishment of the saltwater quality standards. The assessment factor and species sensitivity distribution model were employed to deduce lead saltwater criterion. The toxicity data covered the species representing the marine biota characteristics in China. It was discovered from extensive experiments that results obtained by different methods exhibit significant difference. Based on the species sensitivity distribution model, the high saltwater quality criterion (HSWC) for lead was 275 μg/L; whereas based on the assessment factor method, low saltwater quality criterion (LSWC) for lead was 0.8 μg/L. Specifically, the study provided useful information for update of saltwater quality standards.