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目的了解南水北调对北京市宣武区居民生活饮用水中氟化物、氯化物、硫酸盐的影响。方法用离子色谱法检测“南水”入京前、入京初期及后期宣武区8个街道居民生活饮用水中的氟化物、氯化物、硫酸盐的含量。结果“南水”入京初期,宣武区居民生活饮用水中氟化物、氯化物、硫酸盐均有不同程度升高。“南水”入京第2个月,氟化物、氯化物逐渐降低至“南水”入京前的水平,硫酸盐呈下降趋势但略高于“南水”入京前的水平。结论南水北调对宣武区居民生活饮用水中氟化物、氯化物、硫酸盐影响较小。
Objective To understand the influence of South-to-North Water Diversion on fluoride, chloride and sulfate in drinking water of residents in Xuanwu District of Beijing. Methods The contents of fluoride, chloride and sulfate in the drinking water of 8 streets in Xuanwu District were detected by ion chromatography before “Nanshui ” into Beijing. Results “South Water ” into Beijing early, Xuanwu District residents drinking water fluoride, chloride, sulfate have varying degrees of increase. In the second month of Beijing’s entry into the capital, fluoride and chloride gradually decreased to their pre-Beijing levels, while sulfate showed a downward trend but slightly higher than the pre-Beijing level of “South Water” . Conclusion The South-to-North Water Diversion has little effect on fluoride, chloride and sulfate in drinking water of Xuanwu District.