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《Journal of Safety and Environment》 2007-06
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Statistical analysis on drinking water source and supply system contamination threats and incidents for urban areas in China during 2006

WANG Dong-yu ZHANG Yong (Department of Environmental Science,East China Normal University,Shanghai 200062,China)  
This paper provides an investigation and summary of major drinking water source and supply system contamination threats and in- cidents for urban areas in China in 2006,along with the authors' ex- ploration of the regularities and influences,current responses situation and future developing trends of the drinking water source and supply system contamination threats and incidents for urban areas in China in hoping to work out the efficiency and suitability of the emergent re- sponse mechanisms set up after the Songhuajiang River pollution acci- dent in 2006.The whole paper can be divided into five aspects,in- cluding the dates,sites,pollutant types,brief descriptions of the ac- cidents and the emergent response to them based on the analysis of the 75 water pollution accidents.Thus,the investigation and statisti- cal analysis of ours indicates that:①In 2006,the tendency with this system is characterized with much more accidents taking place and much more serious effects brought about to the fresh water supply to the urban residents;②Major pollutants are still chemical materials, waste water discharge and factory sewage;③Major risk-leading pol- lutant sources are still coming from the inland river-water transporta- tion and transferring accidents caused by the pollution events and the waste-water discharge pollutants;④Serious effect and social conse- quence such water-pollution accidents brought about to our society. They have to account for 41.3 percent of the threatening factors to the safety of the urban water supply system.They also have to account for the urban water supply shortage;⑤Though 92 percent of such seri- ous incidents are given quick response to,much more improvement has to be given to the prompt responses and more efficient emergent measures to be taken to such serious happenings.
【Fund】: 国家自然科学基金(70403005)
【CateGory Index】: X52
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