渭河陕西段环境内分泌干扰物BPA水质基准研究

摘要

The quality criteria is studied using SSD and natural logarithm-cumulative probability distributing fitting model based on USEPA ECOTOX database. The results indicate that the criteria maximum concentration (CMC) of BPA is 403 μg/ L; the criteria continuous concentration (CCC) of BPA is 80. 6 fig/L. In addition, the paper also gives accumulation normal distribution function and probability density function of the WQC for BPA. Finally, the paper provides qualitative analysis of the WQC for BPA. Under the premise, the results show that the WQC of BPA has a certain reference value and its determinis tic probability lies between 71. 43%~100%.%基于USEPA ECOTOX水生生物毒理学数据,采用物种敏感度分布曲线法(SSD)和自然对数-累积概率型分布拟合法对渭河陕西段中的环境内分泌干扰物双酚A(BPA)的水质基准(WQC)进行了研究.研究结果显示:渭河陕西段中BPA基准最大浓度(CMC)为403μg/L,基准连续浓度(CCC)为80.6 μg/L.此外,还给出了渭河陕西段中BPA水质基准的累积正态分布函数与概率密度函数.最后,对渭河陕西段中BPA的WQC进行了确定性分析,分析结果认为在相关假设前提下BPA的WQC具有一定的参考价值,其确定性概率介于71.43％～100％.