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

从该地区和几个癌症高发省份收集环境样本（认为含有有毒物质的生活环境水），并根据中国工业区的信息分析了各种化学物质的浓度。结果检测到o，p ' -DDT。因此，利用medaka的DNA芯片进行生态影响评价。另一方面，与中国海南省疾病预防控制中心合作，利用ICP-MS和镉免疫色谱技术对环境水和食品（农产品和海产品）的金属污染进行了研究。对该地区重金属（镉、铅）进行了金属污染调查。通过金属分析对当地居民进行了健康调查。海南海产品铅污染检测值为0.005 ~ 0.717mg/kg，河流镉污染检测值为0.100 × 10-3 ~ 0.648 mg/kg。

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.