'Drinking Water Hygiene Standard' is difficult to solve the worries of drinking water safety-[3M filter]

The 'Drinking Water Hygiene Standard' is difficult to solve the worries about drinking water safety u003cbru003e　　 The 'Drinking Water Safety' Experts and Media Dialogue hosted by Lvjiayuan was held in the China Science and Technology Hall recently. The issue of the 'Sanitary Standards for Drinking Water' that has been promulgated for five years has become the focus of attention of the participants. Drinking water hygiene standards, drinking water safety, safety concerns u003cbru003e　　 The people regard food as their heaven, and water as their first priority. Participants have a common question: After the new standards are enforced, will our drinking water be truly safe? u003cbru003e　　 Li Fuxing, director of the Drinking Water Industry Committee of the Public Nutrition Development Center of the National Development and Reform Commission, said that the standard was promulgated in 2006 and came into effect on July 1, 2007. Compared with the old version of the national standard in 1985, the indicators of the new national standard have increased from 35 to 106. u003cbru003e　　 'Our new standard has basically been in line with international standards.' Li Fuxing said that the new standard is characterized by conformity with foreign standards, and rural drinking water standards are in line with urban drinking water standards. u003cbru003e　　 However, when faced with the question of whether the implementation of the new standard can truly ensure the safety of drinking water, the participating experts did not show much optimism. u003cbru003e　　 Ling Bo, a researcher at the Environmental Institute of the Chinese Center for Disease Control and Prevention, believes that the main problems facing my country’s drinking water are poor source water quality and backward treatment techniques. u003cbru003e　　Take Beijing as an example. The green home volunteer Wang Jingjing conducted a field survey on the water quality of Beijing’s main river systems from June 2011 to May 2012. It shows that in recent years, water pollution in Beijing has become increasingly serious, and the five major water systems have suffered differently. In terms of pollution, the water quality of rivers in the southeast is almost all inferior to Class V. u003cbru003e　　 What is striking in the survey results is that the Guanting Reservoir can no longer be used as a source of drinking water, and the water in the Jingmi diversion canal has increased lead content. u003cbru003e　　 'In the past 20 years, the water quality of Beijing's tap water has been declining year by year, and pollution indicators have increased.' Zhao Feihong, director of the Beijing Public Health Drinking Water Research Institute who regularly monitors Beijing's tap water, said frankly. u003cbru003e　　 In terms of tap water treatment technology, my country is still lagging behind. u003cbru003e　　Ling Bo said that more than 90% of water plants in China are still using the water purification process of precipitation-dosing reaction, coagulation precipitation-filtration-disinfection-water distribution. Drinking water hygiene standards, drinking water safety, safety concerns u003cbru003e　　 'This water purification process has been used for decades. Although some improvements have been made, the principles and functions have largely remained the same.' Ling Bo said that due to the continued deterioration of water sources, many water plants had to increase the amount of liquid chlorine Use amount to purify water quality. u003cbru003e　　 'This precipitation and disinfection process can only work on bacteria and microorganisms to prevent infectious diseases, but it can't do anything about organics, chemicals, heavy metals, etc.' Ling Bo said. u003cbru003e　　 It is understood that at present 90% of water plants can only purify physical pollution and microbial pollution, but cannot deal with chemical pollution, such as pesticides, pesticides, heavy metals, various organic and inorganic compounds, and other harmful toxins. Perform advanced processing. u003cbru003e　　 In addition, the cleanliness protection of the water transportation link is also a difficult question. At present, many potential safety hazards of tap water come from secondary pollution of water transmission and distribution pipelines. Although the country has made great efforts to improve water supply conditions, the vast water pipeline network transformation project will not be effective in a short time. u003cbru003e　　Ling Bo believes that although the new drinking water standard was introduced at the end of 2006, compared with the high-frequency testing of foreign countries, domestic tap water often passes the low-frequency testing of relevant departments and can be labeled as 'compliant'. Smoothly enter the urban water supply pipeline. At the same time, after the introduction of the new standard, due to the need for a series of technological transformations, the water company's technical input will increase, which will lead to an increase in water prices, which in turn will have an impact on the water industry structure and water rights allocation. u003cbru003e　　'Since the release of the 'StandardsAccording to the introduction, the water plants in some small towns in the west lack disinfection and testing equipment, so the quality of the factory water basically depends on the condition of the water source. u003cbru003e　　 According to the timetable of the new standard, by 2015, all provinces (autonomous regions, municipalities) and provincial capital cities shall achieve full coverage of 106 indicators. u003cbru003e　　 In this regard, Zhao Feihong believes that in order to solve the problem of drinking water safety, the key is to protect the water source and establish a water source safety guarantee system, an urban water supply safety guarantee system and a family drinking water self-safety guarantee system. u003cbru003e　　 Li Fuxing suggested that a 'Drinking Water Safety Law' and a 'Healthy Water Standard' should be formulated, and the government should regularly publish local tap water qualification rates to increase information transparency. u003cbru003e　　 However, when faced with the question of whether the implementation of the new standard can truly ensure the safety of drinking water, the participating experts did not show much optimism. Drinking water hygiene standards, drinking water safety, safety concerns u003cbru003e　　High-quality article recommendation: Shenzhen pilots the most stringent integrated water resources management to achieve results