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调查表明市郊粪便经无害化处理后，可降低粪便对菜田乃蔬菜粪大肠菌、致病菌、寄生虫卵的污染。粪便未处理点的污染重于处理点。肠道传染病调查表明，粪便处理后对降低肠道传染病发病率和肠道寄生虫的发病率有明显的作用。对控制市区蔬菜消费者肠道传染病的发病亦有积极作用。
Surveys show that after the decontamination of suburbs has been detoxified, it can reduce the pollution of excrement to the vegetables and vegetables caused by fecal coliform, pathogens and parasite eggs. Contamination of untreated faeces is heavier than treatment points. Surveillance of intestinal infectious diseases showed that stool treatment has a significant effect on reducing the incidence of intestinal infectious diseases and the incidence of intestinal parasites. It also has a positive effect on controlling the incidence of intestinal infectious diseases among vegetable consumers in urban areas.