W6 PM Environmental Changes in Response to China's Economic Expansion
Wednesday, 16 November 2005: 1:50 PM - 5:30 PM in 324-326

(AAA-1117-820010) Occurrence of Endocrine Disrupting Chemicals (EDCs) and the Potential Ecological Impact in China.

HU, JY¹, AN, W¹, AN, LH¹, ¹ College of Environmental Science, Peking University, Beijing, Beijing, China

ABSTRACT- The occurrences and fates of several endocrine disrupting chemicals (EDCs) including nonylphenol (NP), organotins, atrazine, dichloro-diphenyl-trichloroethane (DDT) and its metatolites in main rivers basin such as Yangtze river, Hai river, Qiantang River, Zhujiang river basins and sea such as Bohai Sea, East China Sea, Yellow Sea and South China Sea, were summarized. The impacts of endocrine disrupters on ecological environment were described by reviewing the evidences of sexual development of wildlifes in China, including imposex of gastropod mollusks in thirty species from 8 families around coasts of Chinese seas, intersex of male fish (Liza haematocheila ) in Bohai, and reduction of waterfowl (night heron) fertility inhabiting colony of Tai Lake, which are related to the pollution status of EDCs. Finally ecological risk assessment of typical EDCs was carried out in specific severely contaminant sites, including incidence of sterile gastropod mollusks females based on tributyltin (TBT) exposure in coasts in China Seas, intersex of fish exposed to man-made estrogens in Bohai Bay using two-sex age matrix model; potential reduction of night heron population size due to DDTs exposure in Tai Lake with one-sex age matrix model.

Key words: Endocrine Disrupting Chemicals (EDCs), Potential Ecological Impact, China