Three departmental data to fight exactly how serious groundwater pollution in China?

In early April, a "groundwater must not drink" news caused concern. Since then the Ministry of water resources devoted to this "rumor", said reports that the water is shallow groundwater, and now most of the underground drinking water sources are deep.

So the question comes, how you bring the groundwater for drinking water quality in China? carding Department of the Ministry of water resources, environmental protection, and data released by the Ministry of land and resources of the tripartite, we found two former closer, or some 80% water quality standards. But land and resources data shows over the past five years, approximately 60% is poor water quality monitoring points of water.

　　The Ministry of water resources:

　　"Probably undrinkable groundwater" is misunderstood

On April 5, the monthly bulletin of Ministry of water resources announced that the groundwater (January 2016), "groundwater quality" a show, class IV to v water 80% around. The media interpret this as "our country ground water probably undrinkable."

For media coverage, water correcting said monthly groundwater data are groundwater monitoring data in the shallow water, not drinking water, groundwater drinking water sources at present are mainly taken from deep groundwater, and data monitoring points of water, cannot be said to be "national 80%" ground water.

According to Xinhua, Ministry of water resources, also known as, is currently under preparation of the national plan for water resources protection, 4,748 urban drinking water sources, 1817 with groundwater drinking water sources, water quality is 85%.

　　Environmental Protection Department:

　　Underground drinking water sources in 87% compliance

Groundwater is just part of our drinking water sources. Ministry of environmental protection announced first half of 2015 national environment quality in reality, underground drinking water sources in the 87.1% standard. What right to monitor water quality standards, environmental protection Department report did not at the same time.

　　Ministry:

　　Monitoring of 60% water

In addition to the Ministry of water resources, Ministry of land and resources also will be in the Ministry of land and resources published in the Bulletin of groundwater status monitoring. According to the southern weekend reported monitoring sites of the Ministry of land and resources and the Ministry of water resources monitoring point do not coincide. Monitoring points of water are shallow groundwater, and monitoring of the Ministry of land and resources is of deep groundwater.

According to the groundwater quality standards, from good to poor water quality will include: good, good, good, poor and very poor.

Combed land monitoring we found that, from 2011 to 2015, the monitoring points in the proportion of poor and very poor water added, rose from 55% to 61%, water (good, good, good) overall proportion not seen improvement.

Results and statistics of the Ministry of environmental protection, there seems to be no evidence. Similarly, the land and resources Communique did not indicate what monitoring points of water is poor in water.

In General, groundwater water quality trends based on stability, from 2011 to 2015 are variation trend of monitoring percentage increase of around 4%.

2015 monitoring shows that inadequate standards of monitoring sites, the main standard components for the total hardness, total dissolved solids, iron, manganese, "three nitrogen" (nitrite nitrogen, nitrate-n and ammonium-n), fluoride, sulphate, and individual water quality monitoring points of arsenic, lead, hexavalent chromium, cadmium and other heavy (a) excessive metal.

Source water groundwater bulletin (January 2016)

Bulletin of China's land and resources, Ministry of land and resources (2011-2015)

Southern weekend, Xinhua News Agency, Beijing, new financial

New Media Editor of Beijing News Lu Chen Xu Ying of Beijing News drawing sword

(Editors: Pan Yi burn UN657)
2016-04-28 18:43:26
The Beijing News

三部门数据打架 中国地下水污染到底多严重？

　　4月初，一则“我国地下水八成不能饮用”的消息引发强烈关注。此后水利部专门对此进行“辟谣”，称报道中说的水是浅层地下水，而如今的地下饮用水水源大多都是深层的。

　　那么问题来了，中国的地下水饮用水水源质量到底怎样呢?梳理水利部、环保部以及国土资源部三方公布的数据，我们发现，前两者的数据接近，即约八成水质达标。但国土资源的数据显示，过去五年，监测点水质大约六成是差水。

　　水利部：

　　“八成地下水不能饮用”是误解

　　4月5日，水利部公布《地下水动态月报》(2016年1月)，报告中 “地下水水质”一项显示，Ⅳ到Ⅴ类水占80%左右。有媒体将此解读为“我国地下水八成不能饮用”。

　　对于媒体的报道，水利部纠正说，月报里的地下水数据是浅层水源地下水监测数据，不是饮用水水源，目前地下水饮用水源主要是取自深层地下水，而且数据只是监测点的水质，不能说是“全国80%”的地下水。

　　据新华社报道，水利部方面也称，目前正在编制《全国水资源保护规划》，4748个城镇饮用水源地中，有地下水饮用水水源地1817个，水质达标率为85%。

　　环保部：

　　地下饮用水水源地87%达标

　　地下水只是我国饮用水水源的一部分。环保部公布的2015年上半年全国环境质量状况现实，我国地下饮用水水源地中87.1%达标。到底哪些监测点水质没达标，环保部并没有同时公布。

　　国土部：

　　监测点六成为差水

　　除了水利部，国土资源部每年也会在《国土资源公报》中公布地下水监测状况。据《南方周末》报道，国土资源部的监测点与水利部的监测点并不重合。水利部的监测点多为浅层地下水，而国土资源部的监测点多为深层地下水。

　　根据《地下水质量标准》，将水质从好到差分为：优良、良好、较好、较差和极差。

　　梳理国土部的监测结果我们发现，从2011年至2015年，监测点中较差水和极差水相加的比例，从55%上升到61%左右，好水(优良、良好、较好)总体比例未见提升。

　　这样的结果，和环保部的统计，似乎并不能相互印证。同样，《国土资源公报》中没有指出哪些监测点的水是差水。

　　总体来看，地下水水质综合变化趋势以稳定为主，从2011年到2015年呈变差趋势的监测点比例增加大约4%。

　　2015年的监测显示，不达标的监测点中，主要超标组分为总硬度、溶解性总固体、铁、锰、“三氮”(亚硝酸盐氮、硝酸盐氮和铵氮)、氟化物、硫酸盐等，个别监测点水质存在砷、铅、六价铬、镉等重(类)金属超标现象。

　　资料来源 水利部《地下水动态月报》(2016年1月)

　　国土资源部《中国国土资源公报》(2011-2015)

　　南方周末、新华社、新京报、财新

　　新京报新媒体编辑 陈璐 新京报制图 许英剑

(责任编辑：潘奕燃 UN657)
2016-04-28 18:43:26
新京报