Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Health Risk Assessment of Heavy Metals in Drinking Water Sources in Shanghai,China

SUN Chao,CHEN Zhen-lou,ZHANG Cui,SHI Gui-tao,BI Chun-juan Key Laboratory of Geographic Information Science of Ministry of Education,East China Normal University,Shanghai 200062,China  
The concentrations of Cr,As,Cd,Pb,Cu,Zn and Hg in the main drinking water sources of Shanghai(the upper-reach areas of the Huangpu River and Chenghang Reservoir)were studied.Health risks associated with these heavy metals in drinking water were assessed primarily by health risk assessment models.The results indicated that among the health risks caused by carcinogens in drinking water,the ranking of the average health risks in the upper-reach areas of the Huangpu River was CrAsCd,while in the Chenghang Reservoir the ranking was AsCrCd,and the risk levels ranged from 10-7 to 10-5.The risk values of Cr and As were higher than the maximum allowance levels recommended by some organizations and researchers(1×10-6 a-1),but were lower than the maximum allowance levels recommended by ICRP(5×10-5 a-1)and by US EPA(1×10-4 a-1).Therefore,Cr and As were regarded as the main carcinogenic elements in drinking water sources of Shanghai.Among the non-carcinogenic risks in drinking water,the ranking of the average health risks in the upper-reach areas of the Huangpu River and Chenghang Reservoir were PbCuZnHg and HgCuPbZn,respectively,and the risk levels ranged from 10-12 to 10-10.The health risks caused by the carcinogens were significantly higher than the non-carcinogenic risks in the drinking water.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved