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于2011年6—7月黄河调水调沙前、中期、后对黄河口海域双酚A(BPA)污染情况进行调查,研究了调水调沙对黄河口海域双酚A的影响。结果表明:黄河口13个站位表层海水和沉积物中均有双酚A检出,以调水调沙前测得的海水和沉积物中双酚A含量评估黄河口附近双酚A的污染程度。海水中双酚A浓度范围为13.6—64.0 ng/L,平均浓度为26.2 ng/L;沉积物中双酚A的浓度为0.559—2.73μg/kg干重,平均浓度为1.19μg/kg,是海水中平均含量的48倍。黄河河口区域海水中双酚A浓度受调水调沙影响而呈现较大变化,调水调沙后双酚A浓度明显增加,调水调沙前、后呈显著性差异(P<0.01),说明陆源输入是黄河口区域中双酚A的主要污染来源。离入海口近的站位沉积物中双酚A浓度受调水调沙影响较大,呈显著性差异(P<0.01),调水调沙后含量显著降低。黄河口海域已经遭受双酚A污染,存在生态安全问题。
In the period from June to July 2011, BPA pollution in the Yellow River Estuary was investigated before, during and after water and sediment management, and the effects of water and sediment management on BPA in the Yellow River Estuary were studied. The results showed that bisphenol A was detected in the surface seawater and sediment of 13 stations in the Yellow River estuary. The bisphenol A content in seawater and sediment measured before water and sediment evaluation was used to evaluate the pollution of bisphenol A degree. The concentration of bisphenol A in seawater ranged from 13.6 to 64.0 ng / L with an average concentration of 26.2 ng / L. The concentration of bisphenol A in sediment was 0.559-2.73 μg / kg dry weight with an average concentration of 1.19 μg / kg 48 times the average content of sea water. The concentration of BPA in the seawater of the Yellow River estuary area showed a great change due to the effects of water and sediment regulation. The concentration of BPA significantly increased after water and sediment adjustment, showing significant difference before and after water and sediment adjustment (P <0.01) This indicates that the input of terrestrial sources is the main source of BPA pollution in the Yellow River Estuary. The concentration of bisphenol A in the sediments near the estuary was significantly affected by water and sediment adjustment (P <0.01), and the contents of bisphenol A were significantly decreased after water and sediment adjustment. Yellow River Estuary has been subjected to BPA pollution, ecological safety issues.