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连续两年调查分析洛阳市郊区农村应用双瓮漏斗厕所对粪便进行无害化处理后用于菜田施肥和对照区粪便未经无害化处理用于菜田施肥的菜田土壤、蔬菜的污染状况,以及相应人群肠道传染病、肠道寄生虫病发病情况。结果表明:处理后的粪便用于菜田施肥,与对照区相比,菜田土壤粪大肠菌值和寄生虫卵污染率明显下降;蔬菜受粪大肠菌群污染程度及受肠道致病菌和寄生虫卵污染率,观察区明显低于对照区;观察区两年肠道传染病发病率分别为1952 ‰和1644 ‰,明显低于对照区3921 ‰和4245 ‰(p 均< 0005) ,1995 年中小学生蠕虫卵感染率170 % ,同对照区290 % 相比差异有显著性意义(p < 005) 。
Two years of investigation and analysis Luoyang suburban rural dual urn funnel toilet harmless treatment for vegetable field fertilization and control area without the decontamination of untreated vegetable fields for fertilization soil pollution of vegetables and soils Status, and the corresponding group of intestinal infectious diseases, intestinal parasitic disease incidence. The results showed that the treated manure was used to fertilize the vegetable field. Compared with the control plot, the fecal coliform value and the parasitoid egg contamination rate in the vegetable field decreased significantly. The contamination of the vegetable by the fecal coliform group and the intestinal pathogen And parasitic egg contamination rates in the observation area were significantly lower than those in the control area. The incidence rates of intestinal infectious diseases in two years in the observation area were 1952 ‰ and 1644 ‰, respectively, which were significantly lower than those in the control area (3921 ‰ and 4245) (P <0005). In 1995, the prevalence of worm eggs among primary and secondary students was 170%, which was significantly different from that of control area (290%) (p <005).