The toxic substances as a factor of causing the region of a high risk of cancer incidencein China.

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The environmental samples (living environment water considered to contain toxic substance) were collected from the region and several the provinces which have a high risk of cancer incidence, and were analyzed the concentration of various chemical substances based on the information on the industrial area in China. As a result, o,p’-DDT was detected. Therefore, the ecology impact evaluation was performed using the DNA microarray of medaka. On the other hand, environmental water and food (agricultural products and a marine product) contamination of metals study using ICP-MS and the immune-chromatography whichspecialized in cadmium were cooperated with China Hainan CDC. At the area which conducted metallic pollution investigation of the heavy metal (cadmium and lead). The local resident's health survey was performed with metal analysis. The lead pollution of the Hainan marine products was detected in 0.005-0.717mg/kg, and River contamination of cadmium was detected 0.100x10-3 - 0.648 mg/kg was detected.