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1979～1985年,我们对东北三省及内蒙东四盟220个市县(旗)的水源、水质及与水有关的地方病情况进行了调查。概述如下: 水源情况全区现有各类水源6,140,318个(江河及部分农灌机井未统计在内),其中自来水6,895座,机井136,695限,压井4,534,675眼,土井1,439,831眼,湖泡、池塘、水库7,794座,泉14,428眼。本次共抽样调查了各类水源21,513个,包括自来水1,901处,机井l,513眼,压井8,961眼,土井7,599眼,江河819处,湖泡、池塘、水库505处,泉215眼。本区居民饮用地下水的占全区人口总数的99.2％,直接饮用地面水的仅占0.8％。集中
From 1979 to 1985, we investigated the water sources, water quality and water-related endemic diseases in 220 cities and counties of the three northeastern provinces and the four Inner Mongolia Autonomous Regions. The water resources are as follows: 6,140,318 types of water (including rivers and part of agricultural irrigation wells not included), including 6,895 tap water, 136,695 wells, 4,534,675 wells, 1,439,831 wells, lakes and ponds, 7,794 reservoirs and 14,428 springs. A total of 21,513 various types of water sources were sampled and surveyed, including 1,901 tap waterways, 1,513 wells, 8,961 wells, 7,599 wells, 819 rivers, lakes, ponds, 505 reservoirs and 215 springs. The residents of this district, drinking water accounts for 99.2% of the total population of the region, directly drinking surface water accounted for only 0.8%. concentrated