昨日，北京市水务局相关负责人做客北京人民广播电台《城市零距离》，介绍了2012年第四季度指标数据出厂水部分指标，其中硝酸盐测出最大9.7毫克/升，最小0.7毫克/升。低于10毫克/升的国家标准。

yesterday,The Beijing municipal bureau of the relevant person in charge of a guest at Beijing people's broadcasting station[City zero distance],This paper introduces the index data in the fourth quarter of the effluent part index,The nitrate measure maximum 9.7 mg/litre,Minimum 0.7 mg/litre.Less than 10 mg/l national standards.

　自来水硬度最大378毫克/升 Water hardness maximum 378 mg/l

　　昨日上午，市水务局供水处处长胡波介绍了2012年第四季自来水出厂水部分指标，在硬度方面，国家标准为450毫克/升，而北京自来水最大为378毫克/升，最小177毫克/升。

Yesterday morning,Municipal bureau of city water supply marshal HuBo introduces the fourth quarter of 2012 water factory water part index,In the hardness in,The national standards for 450 mg/l,And the Beijing the tap water is 378 mg/l,Minimum 177 mg/l.

　　对于在一个季度内自来水硝酸盐相差十几倍的问题，北京自来水公司相关负责人表示，这是不同水源造成的，以地下水为水源时，硝酸盐含量就会高，以地表水为水源时，硝酸盐含量会低，但是不论高低都在国家标准内，是可以放心饮用的。

In a quarter of nitrate in water are more than ten times the problem,Beijing tap water company officials say,This is caused by the different water,For water to the groundwater when,Nitrate content will be high,Surface water is the water in,Nitrate content will be low,But no matter in national standard height within,Can be assured of drinking.

　　记者了解到，硝酸盐在水中经常被检出，含量过高可引起各种疾病，但是国家标准比致病含量低得多。而有相关材料显示，水硬度过高、过低都容易引起疾病。从公布的数据看，北京的自来水饮用是安全的。

The reporter understands,Nitrate in water is often detected,Content is too high can cause a variety of diseases,But the national standard of pathogenic content than lower than.And relevant documents show,Water hardness is too high/Is too low to cause disease.From the figures look,Beijing's water is safe to drink.

市民家水中部分沙粒来自管道内壁 Citizens of home water sand from the pipe wall

　　胡波介绍，从供水企业来说，出厂水是符合国家标准的，是可以直接饮用的，但和有的市民感觉不一样也是客观存在的情况。国家规定从1999年强制淘汰冷镀锌管，而一些上世纪八九十年代的老楼水管仍是没有防腐涂层在内的，时间长了，就会有一些锈蚀，也就是大家看到的小沙粒，这些沙粒其实是管壁内锈脱落。

HuBo introduced,From the water supply for the enterprise,The factory water is accord with national standard,Can be directly drinking,But some people do not feel like there is also an objective situation.The provisions of the state from 1999 forced out cold galvanized pipe,In the s and s and some of the old building pipe is still not, anticorrosive coating,Time long,There will be some rust,Is everybody saw little grains of sand,These grains of sand is actually wall inside the rust off.

　　“对于这个问题，自来水集团也无奈。”胡波称，这里面涉及产权划分的问题。供水企业管线的产权是划分到计费水表之前，计费水表之后进入楼里和各家各户的支线管归产权人或物业管理部门来负责。尤其是高层还会有二次供水设施，这些都归房产公司或物业管。

"For this problem,Tap water group also helpless."HuBo says,It involves property classification problem.The water supply enterprise line of property is divided into charging water meter before,After the water meter charging into the building and families of the feeder tube to property or property management department responsible for.Especially the top will have secondary water supply facilities,These are to real estate company or property tube.

　　胡波表示，水务部门也在考虑让房产公司或物业去除对自来水管的管护权，因为其资金保障和维修保养频率可能顾及不到，而将楼内的管线交给专业公司管理，避免污染。但是这样需要解决产权划分、国有资产分配等很多政策问题。

HuBo said,Water supply departments are also considering real estate company or property to remove the water pipe management rights,Because of its funding and maintenance frequency may not take into consideration,And in the building of the pipeline to professional company management,Avoid pollution.But this need to solve the property division/State-owned asset allocation and many other policy issues.

　　胡波表示，如果市民不放心自己家中的水质，可通过两个途径检测，一是委托卫生主管部门和所在区县疾控部门，另外一个就是委托有国家资质的水质检测中心。此外，高层供水涉及的二次供水设施，物业有责任定期检测，市民可去物业查看水质报告。

HuBo said,If people don't trust your home water,But through the two way detection,One is by the competent department of health and disease control department in districts and counties,Another is to entrust to have the national qualification of the water quality inspection center.In addition,High water supply involved in the secondary water supply facilities,Property have the responsibility to periodically,People can go to property check water quality report.

　■ 说法 S statement

　　地表水源均经深度处理 Surface water are the depth processing

　　昨日上午，清华大学环境科学与工程系水质科学与工程研究所教授张晓健表示，北京凡是使用地表水的水厂，都采用深度处理，不仅能去除泥沙等物质，也能去除微量的有机污染物、重金属颗粒。

Yesterday morning,Tsinghua university environmental science and engineering institute of water quality science and engineering professor zhang xiaojian said,Beijing every use of surface water,Use advanced treatment,Can not only remove sediment and other material,Also can remove trace organic pollutants/Heavy metal particles.

　　张晓健称，其实北京水源不需要采用深度处理工艺，但为了安全考虑，以及更好的品质和口感，从上世纪80年代开始，所有地表水厂都用深度处理工艺。此外，地下水源只需要加氯消毒后就能直接达到饮用水标准。

Zhang xiaojian said,In fact Beijing water without the use of advanced treatment process,But in order to safety,And better quality and taste,Since the 1980 s,All surface water treatment process with depth.In addition,Underground water need only after chlorination can directly reach drinking water standard.

　　张晓健介绍，北京水质检测力量很强，检测系统能够检测106项标准，对于其他一些敏感的或有可能潜在的污染物都能检测，而且自来水集团有自身的内控标准，比国家标准还严格，北京饮用水标准与国际标准是接轨的，市民可放心饮用。

Introduced zhang xiaojian,Beijing water quality inspection is strong,Detection system can detect a standard 106,For some other sensitive or may have potential pollutants can detection,And tap water group has its own internal control standard,Than the national standard is strict,Beijing drinking water standard and international standard is connected,Public can rest assured drinking.

　　针对市民反映水碱多的问题，张晓健称，其实水碱就是水中的钙镁离子，资料显示对健康并没影响。而且无论是世界卫生组织还是美国、欧盟，都没有对水质硬度设定标准。反而，如果水的硬度偏低，会产生心血管疾病。张晓健表示，其实水中的钙成分和钙片成分完全一样，市民完全无需担心。（记者饶沛）

According to the problem of citizens reflect more scale,Zhang xiaojian said,In fact scale is the water of calcium magnesium ion,Data suggests that the health and didn't influence.And whether the world health organization or the United States/The European Union,Is not for water hardness set standards.instead,If the hardness of water on the low side,Will produce the cardiovascular disease.Zhang xiaojian said,In fact the water of calcium composition and calcium tablet component exactly the same,People do not have to worry about completely.(Reporter RaoPei)