In April, 2009, Phoenix Weekly took "China 100 Carcinogenic Dangerous Places" as the cover story, telling the story of China 100 Carcinogenic Dangerous Places. In the same year, Sun, a geography student of Huazhong Normal University, pointed out in a paper entitled "Study on the Geographical Distribution of cancer villages in China"-"According to the data, there are 197 villages recorded in cancer villages or have been confirmed, of which two are described as 10 or more villages and more than 20 villages respectively, and the number of cancer villages cannot be confirmed in 9 areas, so the number of cancer villages in China should exceed 247, covering Chinese mainland. 20 13 February, a "map of cancer villages, China" made by a public welfare person according to the survey materials is being watched on the Internet, and it is believed that there are more than 200 villages.