2006年-2013年蓬莱市农村饮用水中无机盐的调查分析

Investigation and analysis of inorganic salt in rural drinking water from 2006 to 2013 in Penglai city

目的了解蓬莱市农村饮用水中无机盐的含量,为蓬莱市农村饮用水的安全提供科学依据。方法水样的采集和保存按照现行GB/T 5750.2—2006《生活饮用水标准检验方法水样的采集和保存》进行,检验方法按GB/T 5750.4~5—2006《生活饮用水标准检验方法》进行,依据GB 5749—2006《生活饮用水卫生标准》进行评价。结果 2006年-2013年蓬莱市农村饮用水中的总硬度、氯化物、氟化物、硫酸盐、硝酸盐、溶解性总固体的合格率分别为87.9%、98.9%、97.7%、98.3%、51.1%、87.6%,其中硝酸盐的合格率较低;近海乡镇村庄氯化物的平均值为106 mg/L,远海乡镇村庄氯化物的平均值为78.6 mg/L,两者差异有统计学意义（P〈0.05）。结论蓬莱市农村饮用水粪便污染严重,沿海的乡镇村庄饮用水中的氯化物和溶解性总固体的含量明显高于远海的乡镇村庄,海水入侵对蓬莱市农村饮用水有一定的影响。

Objective To understand the content of inorganic salt of rural drinking water in Penglai city, and provide scientific basis for the safety of drinking water in rural areas of Penglai city. Methods Water samples were collected and preserved in accordance with current GB/T 5750.2--2006 ＂Drinking Water Standard Test Method for Collection and Preservation of Water Samples＂. Inspection methods according to GB/T 5750.4 - 5--2006 ＂standard for drinking water＂ for testing, and evaluated according to GB 5749--2006 ＂Drinking Water Health Standards＂. Rusults The qualified rate of the total hardness, chloride, fluoride, nitrate, sulfate, total dissolved solids respectively in the rural drinking water in Penglai city during 2006 -2013 was respectively 87.9%, 98.9%, 97.7%, 98.3%, 51.1%, 87.6% ; The pass rate of nitrate was lowest. The average value of chloride nearshore township village was 106 mg/L. The average value of chloride off shore township village was 78.6 mg/L. The difference had statistical significance between the two records（P 〈0.05）. Conclusion Drinking water in rural areas of Penglai city is serious polluted by fecal. The concentration of the chloride and the total dissolved solids in the township village drinking water along the coast are much more than them in the township village drinking water. Seawater intrusion has some influence on the rural drinking water in Penglai city.