- T Yamamoto: Regional Environment Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan. tyama@nies.go.jp
The levels of Bisphenol A in hazardous waste landfill leachates collected in Japan in 1996 were determined by gas chromatograph/mass spectrometer (GC/MS). Bisphenol A was found in seven of 10 sites investigated. All the hazardous waste landfills with leachates contaminated by Bisphenol A were controlled. The concentrations of Bisphenol A ranged from 1.3 to 17,200 microg/l with a median concentration of 269 microg/l. The source of Bisphenol A in landfill leachates may be the waste plastics in waste landfill. The concentrations of Bisphenol A in some samples exceeded the EC50 or LC50 levels for aquatic biota. Landfill leachates may be a significant source of Bisphenol A found in the environment.