Bisphenol A pollution of surface water and its environmental factors.

Content levels of bisphenol A(BPA)in the surface waters of the Pearl River Estuary,Hengmen river and fishponds were determined by means of solid phase microextraction(SPME)and gas chromatography-mass spectra(GC-MS).Results show that the content of BPA in the three waters was 1.19,1.41 and 2.06 μg·L-1,respectively.A significant relationship was observed between the contents of BPA and pH.According to the EC/PNEC evaluation system,the residual extent of BPA in the Pearl River Estuary area might not bring about any significant ecological risk to the environment and human beings.