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ARSENIC-poisoning occurring in agricultural areas in southwestern Guizhou Province, China, has been aproblem for half a century. By 1998, over 3000 cases of arsenic poisoning had been identified and morethan 100 000 people from 6 counties were under threat. In 1992-1993, samples of coal, rocks,soil, surface water, ground water, air and food such as chili peppers were collected in endemic and control areas. Samples of urine, blood and hair were also collected from arsenic-poisoned patients as well ashealthy population in a control area. Arsenic content of the samples was determined by Ag-DCCmethod.
ARSENIC-poisoning occurring in agricultural areas in southwestern Guizhou Province, China, has been aproblem for half a century. By 1998, over 3000 cases of arsenic poisoning had been identified and morethan 100 000 people from 6 counties were under threat. In 1992-1993 samples of coal, rocks, soil, surface water, ground water, air and food such as chili peppers were collected in endemic and control areas. Samples of urine, blood and hair were also collected from arsenic-poisoned patients as well as well-being population in a control area. Arsenic content of the samples was determined by Ag-DCCmethod.