|
|
|
| GEOLOGICAL ENVIRONMENT OF A TYPICAL CANCER HIGHINCIDENCE AREAIN ZHEJIANG PROVINCE |
| SONG Ming-yi 1,2,ZHOU Tao-fa 1,CAI Zi-hua 2,FENG Xue-wai 3,JIAN Zhong-hua 1,HUANG Chun-lei 2 |
| 1.School of Resources Science and Environment Engineering，Hefei University of Technology，Hefei 230009,China； 2.Zhejiang Institute of Geological Survey， Hangzhou 311203, China; 3.Longyou Bureau of Land and Resources Management, Longyou 324400,China |
|
|
|
|
Abstract Environmental geological survey in a certain high incidence area of esophageal cancer shows that soil parent materials of this area are more viscous and heavy and have higher organic matter than the soil parent materials in lowincidence areas, and nitrite, N-NH3 and N-NO3-in drinking water wells of this area are seriously higher than their standards. The mortality of esophageal cancer is as high as 269/100 000, by far higher than the national standardized mortality of 10.02/100 000. Studies show that soil viscocity and heaviness cause slower water flow and higher nitrite content in the well, which seems to be the main cause for high incidence of esophageal cancer in the study area.
|
|
Received: 01 September 2009
Published: 10 June 2010
|
|
|
|
|
|
|
|
|
