三峡库区万州段居民饮用水源水水质卫生状况分析

发布时间：2018-04-24 13:40

本文选题：水源水 + 三峡库区　；参考：《环境与健康杂志》2017年04期

【摘要】：为了解三峡库区万州段居民饮用水源水的卫生状况,于2013—2015年枯水期(3—4月)与丰水期(8—9月),对该地区以水库水为水源的35家城区与农村集中式供水水厂的水源水水质进行检测。结果显示,共监测水样140件,合格53件,合格率37.86%。城区水源水的合格率[23.08%(15/65)]低于农村[50.67%(38/75)],差异有统计学意义(P0.01)。2015年枯水期的水质合格率[38.71%(12/31)]低于丰水期[66.67%(14/21)],差异有统计学意义(P0.05)。铜、锌、硒、砷、汞、镉、铬、铅、氰化物、挥发酚、石油类、氯化物、氨氮、硝酸盐、四氯化碳均合格;p H、溶解氧、高锰酸盐指数、氟化物、阴离子表面活性剂、硫化物、硫酸盐、铁、锰、三氯甲烷、五日生化需氧量、化学需氧量、粪大肠菌群的合格率为91.43%~99.29%;总氮、总磷的合格率最低,分别仅为48.57%和65.00%。表明三峡库区万州段居民饮用水源水水质虽逐年有所提升,但水质仍亟待改善,且农村水源水水质优于城区。
[Abstract]:In order to understand the sanitary situation of drinking water in Wanzhou section of the three Gorges Reservoir area, The water quality of 35 urban and rural centralized water supply plants in this area with reservoir water as its water source was tested in the dry season of March to April in 2013-2015) and in the high water period of August to September. The results showed that 140 water samples were monitored, 53 were qualified, and the qualified rate was 37.86. The qualified rate of urban source water [23.08 / 65] was lower than that in rural areas (50.67 / 38 / 75), and the difference was statistically significant (P 0.01). The qualified rate of water quality in the dry period of 2015 [38.711 / 31] was lower than that in high water period (66.67 / 14 / 21), and the difference was statistically significant (P 0.05). Copper, zinc, selenium, arsenic, mercury, cadmium, chromium, lead, cyanide, volatile phenol, petroleum, chloride, ammonia nitrogen, nitrate, carbon tetrachloride, dissolved oxygen, permanganate index, fluoride, anionic surfactant, sulfide, The qualified rates of sulfate, iron, manganese, trichloromethane, 5-day biochemical oxygen demand, chemical oxygen demand and fecal coliform bacteria were 91.43 and 99.29.The qualified rates of total nitrogen and total phosphorus were 48.57% and 65.00%, respectively. It shows that although the drinking water quality of Wanzhou section of the three Gorges Reservoir area has been improved year by year, the quality of drinking water is still in need of improvement, and the water quality of the rural source water is better than that of the urban area.
【作者单位】：重庆市万州区疾病预防控制中心饮水消毒科;贵州省遵义医学院预防医学系;中国疾病预防控制中心农村改水技术指导中心;重庆三峡医药高等专科学校医学技术系;
【分类号】：R123.1

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