Abstract: 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.