At first, through analyse the influence on the soil, crops, groundwater and function of water body of sewage, the index system of sewage irrigation security appraisal have been set up.
首先，通过污水对土壤、农作物、地下水以及水体功能的影响分析，建立了污水灌溉安全性评价的指标体系。
The sewage irrigation caused not only lead pollution of the environment, but it also increased lead load of children and brought about early damage in the central neural system.
提示用含铅工业废水灌溉不仅使环境受到铅污染，而且使儿童铅负荷增高，中枢神经系统受到早期损害。
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