From the initial cough to the blood in the sputum, to the difficulty of breathing and fainting later, Ms. Meng has been through such torture in the past year. Not only that, Ms. Meng also told reporters: "During the year, people who lived in the same street began to have symptoms similar to her one after another: cough, bloody sputum, and difficulty breathing."
The doctor's test results for them are: tracheitis or mild pneumonia caused by respiratory infections. Where does the source of infection come from? Ms. Meng found that every time it rained or snowed, the symptoms would be alleviated, and the most serious symptoms were around 5 pm. At this time, it was when the furniture factory next door that started construction at the end of 2009 began to spray paint .
In order to prove her suspicions, Ms. Meng specifically found a friend who had previously run a furniture factory, and for the first time knew such a term—formaldehyde.
"Be lurked"
Ms. Meng learned from this friend that the furniture plates and spray paints contained a lot of formaldehyde, and the furniture factory next to Ms. Meng was just a family workshop, and the paint spraying was carried out outdoors, which caused accumulation in the air in the long run. A lot of formaldehyde.
This friend also told reporters: "The health of frontline workers in furniture companies will also be severely affected by high-toxic formaldehyde, as well as residents near the factory, and if consumers purchase unqualified products, excess formaldehyde will pass The respiratory tract, skin, etc. enter the body, causing damage to the nervous system, respiratory system, hematopoietic system, etc., and even causing poisoning or death. "
Formaldehyde has been identified as a carcinogen and teratogenic substance by the World Health Organization, and is also one of the potential strong mutagen. Excessive release of formaldehyde will seriously endanger human health. Studies have shown that formaldehyde contained in decoration and furniture has a release period of up to 3 to 15 years. The reporter learned from the Youth League Committee of the Zhejiang Provincial Department of Environmental Protection that during the recent free indoor air quality testing for citizens, a citizen after 9 years of decoration still detected that the formaldehyde of the furniture exceeded the standard by as much as double.
After inspection of 85 wooden furniture manufacturing enterprises across the country, the General Administration of Quality Supervision, Inspection and Quarantine found that there are at least 15 chemical poisons in each enterprise, with a maximum of 31, exceeding the standard. Among them, 89.0% of the companies exceeded the standard, and the highest exceeded the standard by 121.5 times; 76.9% of enterprises exceeded the standard of formaldehyde, and the highest exceeded 116 times.
Costly
Xu Guanrong, secretary general of the Shanghai Furniture Industry Association, told reporters: "The formaldehyde content of furniture exceeds the standard, mainly because in the process of processing, once the formaldehyde content of the board, glue and paint cannot be guaranteed, the formaldehyde content of the furniture will unconsciously exceed the standard. In addition In order to reduce costs, companies buy inferior plates. The environmentally friendly materials have low formaldehyde content but relatively high costs. Compared with inferior plates, the price difference per block ranges from 60 to 100 yuan. "
According to the reporter, the most important raw materials in sheet furniture are plate, particle board, density board and other varieties, which are generally made of glue and contain a certain amount of formaldehyde. There are three kinds of plates that meet national standards: E0, E1, and E2. Among them, E0 is the most environmentally friendly and has the lowest formaldehyde content. Of course, the cost is also the highest.
At present, according to national regulations, the formaldehyde emission in furniture should be less than 0.15mg / m3. Xu Guanrong pointed out: "Sometimes manufacturers purchase more environmentally friendly E0 and E1 plates, but in the processing process, other factors such as glue and paint can also cause formaldehyde to exceed the standard."
The Secretary-General of Shanghai Raw Materials Committee Ying Zaiyang told reporters: "Even the use of green building materials can not guarantee the elimination of excessive formaldehyde. Although companies have material certification standards, they cannot guarantee that they are environmentally friendly if they are not strictly checked during the production process. . "
In this regard, Ying Zaiyang believes that the government and enterprises should work together to manage the problem of excessive formaldehyde at the source. At the same time, Xu Guanrong called on production enterprises to raise awareness of responsibility and environmental protection. At the institutional level, Lu Weiguang hopes that the country can unify the formaldehyde detection equipment and methods, so that the detection equipment and methods of enterprises and cities, cities and cities are consistent, reduce human-induced formaldehyde excess, and truly reassure consumers.
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Benzyl Carbazate Basic Information
CAS: 5331-43-1
MF: C8H10N2O2
MW: 166.18
EINECS: 226-230-3
Product Categories: Phosgene Derivatives
Mol File: 5331-43-1.mol
benzyl carbazate Structure
Benzyl carbazate Chemical Properties
Melting point 65-68 °C(lit.)Boiling point 294.38°C (rough estimate)
density 1.2265 (rough estimate)
storage temp. 2-8°C
Water Solubility Soluble in water (slightly), methanol and DMSO.
Benzyl Carbazate CAS No. 5331-43-1
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