哈尔滨市及周边地区第四系地下水水质综合评价

Comprehensive assessment of quaternary groundwater quality in Harbin city and the surrounding area

文章以地下水质量标准为基础,选取pH值、氮氨、汞等19项指标,利用模糊数学方法对哈尔滨市及周边地区第四系地下水质量进行综合评价。研究结果表明,该区地下水水质整体较好,可以直接作为饮用水水源的Ⅰ,Ⅱ和Ⅲ类水占取样总数的77.1%;但由于受储水地层还原沉积环境的影响,感官性状和一般化学指标铁、锰、氨氮普遍超标。另外,部分地区地下水还存在总硬度、硝酸盐、可溶性总固体、高锰酸钾溶液超标现象。

Based on the groundwater quality standard, the paper evaluates synthetically the quaternary groundwater quality in Harbin city and the surrounding area with the 19 indexes of the PH value, nitrogen ammonia, mercury, and so on, by using the fuzzy mathematics method. The results show that the integral groundwater quality is good in the area, the water with the class ofⅠ, Ⅱ and Ⅲ, which could be used as the drinking water, accounts for 77.1% of the total sample. Because of the influence of the storage water formation reduction sedimentary environment, the sensory properties and the general chemical indicators are beyond the standard, include the iron, manganese and ammonia nitrogen. In addition, the total hardness, the nitrate, the total soluble solids and the potassium permanganate solution are beyond the standard for the groundwater in there is the phenomenon of excessive groundwater for the groundwater in some areas.