1998-2007年攀枝花市生活饮用水水源中铁含量检测分析

目的]探讨攀枝花市城市生活饮用水水源金沙、江攀枝花段江水中铁含量变化趋势。方法]1998～2007年于枯水期、丰水期分别对8个大水厂的水源水进行检测。结果]检测的所有水样中铁含量均超过集中式供水饮用水地表水源地铁含量限值（≤0．3mg／L）。8个水厂水源水1998～2007年各年均值，枯水期为（0．68～1．36）mg／L，丰水期为（5．99～13．31）mg／L；各水厂，10年均值，枯水期为（0．62～1.46）mg／L．丰水期为（7．44～9．64）mg／L），均有在金沙江穿越城市过程中从上游至下游逐渐增高的趋势（P〈0．01）。全部水样均值，丰水期为（8．55±2．32）mg／L，枯水期为（0．92±0．38）mg／L（P〈0．01）。结论]攀枝花市各水厂来自金沙江的水源水铁含量均超过国家标准，随着城市工业化的发展水源水中铁含量随之升高。

Analysis of the Iron Content in the Source of Drinking Water in Panzhihua City from 1998 to 2007

Objective]To explore the Changing tendency of iron content of the source of drinking water in Jinsha river of Panzhihua city. Methods]Source water samples collected from 8 water supply plants during dry seasons and water abundant seasons were tested from 1998 to 2007. Results]The iron content in all the water samples tested was over the limited value of the surface source water Of the central water supply （≤0.3 mg/L）. The average value of the source water from the 8 water supply plants was （0.68-1.36） mg/L during dry seasons and （5.99-13.31） mg/L during water abundant seasons. The average iron content during water abundant seasons was （7.44-9.6）mg/L and （0.62-1.46）mg/L during dry seasons （ P〈0.01）. The average value of all the water samples was （8.55±2.32）mg/L during water abundant seasons and（0.92±0.38 ）mg/L during dry seasons（ P 〈0.01）. Conclusion]The iron content of the water source from Jinsha river was over the national standard. The iron content increas＇ed along with the development of the industrialization of the city.