利用人群流行病学调查资料 ,通过估计人群累积呼吸量和大米食用量的方法 ,估算了污染区人群经呼吸和饮食的累积砷暴露量。并对如何评价人群环境污染物暴露水平的方法进行了探讨。不考虑非污染期经呼吸道的砷暴露时 ,所估计的污染区人群最大累积砷暴露量 ,经呼吸道途径 ,女性为 5 91 4mg ,男性为6 12 9mg。消化道途径为 34 88 74mg,合计女性为 40 80 14mg ,男性为 410 1 6 6mg。按污染时间折算成每日暴露量 :女性为 34 9 1μg (天·人 ) ,男性为 35 0 9μg (天·人 ) ,约为调查时所计算日均暴露量的 80 %左右 Based on the population epidemiological survey data, cumulative exposure of arsenic to respiratory and dietary contaminants was estimated by estimating population cumulative respiration and rice consumption. And how to assess the population exposure to environmental pollutants were discussed. Regardless of exposure to arsenic in the respiratory tract during non-contaminated periods, the estimated cumulative exposure to arsenic in the population in the contaminated area is 5 91 4 mg for women and 6 12 9 mg for men through the respiratory tract. The digestive tract route was 34 88 74 mg, for a total of 40 80 14 mg for women and 410 1 6 6 mg for men. According to the pollution time converted into a daily exposure: women, 34 9 1μg (day · person), men, 35 0 9μg (day · person), about the survey average daily exposure of about 80%