[A study on the relationship between drinking water with high arsenic content and incidence of malignant tumour in Heihe Village, western part of Huhehot, Inner Mongolia].
Since 1991, it has been repeatedly reported that endemic arsenism was noticed in the large areas in the middle and west parts of Inne Mongolian Autonomous Region. Heihe village is located in a geological area with rich natural arsenic. The inhabitants of the village have drunk the water with high arsenic content for a long time and many people have died of malignant tumours. A historical prospective method has been used in the study. The research has been carried out chronologically on the statistical relationship between drinking water with high arsenic content consumed by local inhabitants for 22 years and the mortality of malignant tumours. This study has confirmed that the accumulated mortality rate and the average mortality rate of Heihe villagers who had drunk the water with high arsenic content for a number of total 22 years (from January 1971 to January 1993) were 13 590/10(5) person-year and 642.01/10(5) person-year. In terms of the portion among all malignant tumour deaths, cancer for the lung takes the lead, followed by liver cancer and then bladder cancer. The risk of death of malignant tumours in the villagers who drink water with high arsenic content was 9.38 times to the risk in the inhabitants who do not drink water with high arsenic content.
Luo
F J
FJ
Department of Hygiene, Hebei Medical College Shijiazhuang.
Luo
Z D
ZD
Ma
L
L
D001151:Arsenic / Q000009:adverse effects* / Q000032:analysis; D002681:China / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008113:Liver Neoplasms / Q000139:chemically induced / Q000453:epidemiology*; D008137:Longitudinal Studies; D008175:Lung Neoplasms / Q000139:chemically induced / Q000453:epidemiology*; D011446:Prospective Studies; D012307:Risk Factors; D001749:Urinary Bladder Neoplasms / Q000139:chemically induced / Q000453:epidemiology; D014874:Water Pollutants, Chemical / Q000009:adverse effects*; D014881:Water Supply / Q000032:analysis*
D014874:Water Pollutants, Chemical; D001151:Arsenic