松花江水内分泌干扰物及雌激素活性调查

为明确松花江水体中内分泌干扰物的污染状况,利用固相萃取富集-气质联机/重组基因酵母对松花江全江11个典型断面进行全面采样分析.结果表明：江水中∑5ES质量浓度在6.59～30.97 ng/L,平均值为17.23 ng/L,出现最大质量浓度的位置是达连河排污口,雌酮（E1）和雌二醇（E2）是其中贡献最大雌激素,其质量浓度...

Preliminary survey of endocrine disrupting compounds and estrogenicity in Songhua River

For determining the pollution status of endocrine disrupting compounds(EDCs) in Songhua River,solid phase extraction(SPE) followed by GC-MS/Yeast Estrogen Screen(YES) assay were used to analyze the EDCs concentration at 11 sampling sites of Songhua River.The results indicated that total five estrogen ∑5ES was in the range of 6.59-30.97 ng/L,the average value was 17.23 ng/L,and the water from Dalian river outfall had the highest ∑5ES.Estrogen(E1) and 17β-estradiol(E2),which were mainly from urban sewage and contributed most of all estrogen and their concentrations,were in the range of 1.54-6.34 and 1.86-20.78 ng/L,respectively;Nonylphenol(NP),octylphenol(OP) and bisphenol A(BPA) were detected in all the sampling sites,with the mean values of 512.8,34.1 and 52.8 ng/L,respectively,which were mainly from the domestic sewage and industrial wastewater;The estrogenicity of river water detected by YES was in the range of 0.50-26.16 ng/L,and the highest EEQ occurred at the Haxia sampling site.The EEQ at other sampling site was all below 3.60 ng/L,which was at the same pollution level with other river,but it also existed the potential problems of ecological security in Songhua River.