Baotou 50 new housing air quality testing only 45% of the standard

China Paint Network
News:
In March this year, Baotou City Product Quality Measurement and Testing Institute and other units launched a "March 15 home decoration air pollution survey activities" for Baotou City 50 eligible families free indoor harmful gas testing, testing results show that indoor air quality standards of the new housing only 45%, and in the new unqualified housing, formaldehyde exceeding the standard rate is 100%, this result makes indoor air testing has once again become the focus of public attention. In the face of newly renovated houses, new furniture and new appliances, most owners will have the idea of waiting to stay, but at the same time, whether the air quality in the room is up to standard is also their tangled problem.
50 newly installed housing testing harmful gas pass rate of only 45% of the public Ms. Gao is the owner of the Lumingyuan District in Donghe District, her wedding house was renovated in June last year, in September has been staying. "Our wedding date is here, so it didn't take long for the ventilation to get in after the renovation. This six months, go home can always smell, at first I also had cough and other symptoms, so the air quality at home is very worried. Ms. Gao said. In March this year, learned that the relevant units are carrying out free indoor harmful gas testing news, Ms. Gao immediately reported. On March 25, staff took equipment to Ms. Gao's home for indoor air quality testing. "The air sample is taken twice, normally once, and then again the next day after 12 hours of indoor closure." The tester told reporters. After collecting the air samples, the testers sent ms. Gao's samples back to the lab, where the professionals began the experiment. "Export the liquid sample, then add a color agent to the liquid, shake it well and leave to rest for a while, and the color of the liquid will change significantly." Pointing to the color has turned green liquid samples to reporters, "put the liquid in the hydrometer, can measure the absorbance, and then converted into a concentration, according to the pressure and temperature of the gas collection, you can calculate the formaldehyde content per cubic meter, single formaldehyde test time needs at least a few hours." "The reporter picked up the report and found that the air formaldehyde content in Ms. Gao's bedroom was 0.11 milligrams per cubic meter, which was a small increase from the national standard of 0.10 milligrams per cubic meter." If only the test before check-in, this room we have lived for half a year, did not expect to meet the standards. Ms. Gao said. Reporters learned that in March by the city's product quality measurement testing institute, the city standard indoor environmental testing laboratory and other units launched the "March 15 home decoration air pollution survey activities", the city's five districts of 50 households free of charge to accept indoor air harmful gas testing, testing results show that only 45% of the newly renovated indoor air quality qualified. According to Fan Hongbo, the head of the indoor environmental testing laboratory, 289 families signed up for the event, the laboratory understood the basic situation of their decoration, focusing on the living process of the body has adverse reactions, pregnant women and children and other special groups of people living, as well as decoration process using a large number of decorative materials such as artificial sheeting, wallpaper, wooden flooring and other 50 families for testing. The detection point is set in the bedroom, and the detection items are formaldehyde, benzene and TVOC organic volatiles. The results showed that 45% of households had qualified indoor air quality, and 100% of eligible households exceeded formaldehyde standards. Made furniture and wallpapers are the main source of pollution in the investigation process, inspectors also found that indoor air quality pollution in the new room, in the decoration process using a large number of wallpapers and purchase materials to make furniture more. Zhang Yuzhong, director of the furniture room of the city's product quality measurement and testing institute, said: "Every year we will encounter dozens of consumer complaints about decorative materials type testing, we found that indoor air quality is not qualified, contaminated materials are mainly furniture and wallpapers, harmful substances are formaldehyde." "For wallpapers, hazardous substances such as formaldehyde and vinyl chloride may remain in the manufacturing process due to raw materials and process formulations, and the adhesives used may also release organic volatiles such as formaldehyde and benzene." Zhang Yuzhong said, "For their own furniture, artificial board is the main material used in the home furnishing process, some consumers in the purchase of materials can not be effectively identified, the quality of artificial board and other materials on the market is also uneven, and even some of the materials are not high enough to be used to make furniture." More importantly, some owners in the decoration process did not control the concept of indoor air pollution, sometimes a room has artificial panels, wooden floors, as well as wallpaper, space carrying too much material, bring the hidden dangers of air pollution. "So how can indoor air pollution be effectively removed?" In the eyes of professionals, ventilation is still the most effective means. "Ventilation to continue to be effective, continuous is to ensure a certain amount of time each day, effective is the air to form a reflow. Mild excesses can come down after a month or two of ventilation. Zhang Yuzhong said, "But if it is severe, removing the source of pollution is the most direct and effective." "In recent years, the public's concern about air quality after the renovation of new homes has been increasing, more and more consumers hope that through scientific means to their living environment air quality testing, the market many testing agencies have made it difficult for consumers to choose. In this regard, Zhang Yuzhong reminded that the testing agencies can not be both measured and treated, the public have to polish their eyes. "If testing and governance are the same company, it's the same as being a referee and an athlete, and the effectiveness and accuracy are questionable." Zhang Yuzhong said, "The real authority of the standard testing laboratories are CMA measurement certification mark, CMA testing institutions will not sell pollution control products and services to customers, these testing institutions report to have legal effect." Zhang Yuzhong also revealed that the next step, the quality supervision department will be to the public qualified indoor air quality testing institutions list, to meet the public's demand for indoor air quality testing.