In addition to formaldehyde - home reading (what are the hazards of formaldehyde on the human body?)

Formaldehyde has been identified as carcinogenic and mutagenic substances WHO, is recognized as a source of allergy, but also one of the potential strong mutagenic. The study showed that formaldehyde has a strong carcinogenic and cancer promoting effect. A large number of documents, the impact of formaldehyde on human health is mainly reflected in the abnormal smell, stimulation, allergy, abnormal lung function, liver function and immune function abnormalities, etc..
The concentration in each cubic meter of air to reach 0.06 mg/ m3 -0.07, children will have a slight asthma.
When the indoor air formaldehyde content of 0.1 mg/m3, there is smell and discomfort; to 0.5 mg/m3, can stimulate the eyes, causing tears;
Reach 0.6 mg/m3, can cause throat discomfort or pain. Higher concentration, can cause nausea and vomiting, cough, chest tightness, asthma and even pulmonary edema;
Reached 30 mg/m3, will immediately cause death.
Long term exposure to low doses of formaldehyde can cause chronic respiratory disease, caused by nasopharyngeal cancer, colon cancer, brain tumor, menstrual disorder, nuclear gene mutation, single stranded DNA cross even and DNA and proteins even and inhibit DNA damage repair, pregnancy syndrome, caused by neonatal chromosome disorder, leukemia, causing memory and intellectual decline in young people. In all contacts, children and pregnant women are particularly sensitive to formaldehyde, the harm is even greater.
The World Health Organization (who) working group had to formaldehyde set it to smell, irritation of the eyes and respiratory tract stimulation potential carcinogenicity of threshold, and pointed out that when the indoor formaldehyde concentration exceeded 10%, should cause enough attention. Formaldehyde pollution hazards are serious places new decoration room, office, conference room, hotel, KTV private rooms and furniture stores, building materials market.
Formaldehyde pollution in indoor air
Indoor decoration, buy furniture in people's homes and offices and other places, because the decoration and furniture manufacture to use lots of man-made plank (such as plywood, big core board, fiber board, particieboard, strengthen floors and composite wood floors), while the production man-made board needs a large number of the adhesive with high toxicity of formaldehyde as raw material to produce, due to the adhesive formaldehyde release period is very long, generally up to 15 years, leading to formaldehyde as the main pollutants in indoor air.
2001 August Association announced a surprising findings, in Beijing and Hangzhou were home indoor air sampling and testing showed that excessive formaldehyde concentrations were up to 73.3% and 79.1%, the highest exceeded reached more than 40 times. Inspection department last year, the city of Beijing City, the city of 9 furniture for air quality testing, the results found that the average test results of formaldehyde is higher than the public places health standards 3.3 times. The maximum value was 15.8 times higher than that of public health standard, and the standard rate of sample was 98%.
July 2001 Hefei health department informed the city's 15 monitoring points of the office and indoor air monitoring results: formaldehyde all exceeded, the maximum reached 85 times. Indoor air pollution is alarming.
Hefei City ICBC co-workers branch decoration has 15 month, but two offices has been pervaded by "smell" and often a lot of death worm, the worker also repeatedly reflected tears, sore throat, chest distress, headache and other symptoms. Monitoring results found that the office of formaldehyde a standard 45 times, a standard 29 times. According to the staff of Nanjing City, the indoor environment monitoring center of a surname of money, the center was established for two months to public demands, a total of Nanjing nearly 30 sets of residents of the newly renovated rooms were monitored, almost no an can fully meet the hygiene standards of China indoor environmental standards ", the main problem is formaldehyde, formaldehyde standard unexpectedly as high as 40 times.

Occupational disease prevention and control of occupational diseases in Sichuan province was informed that the number of rooms and offices, office buildings were detected after more than 1500 decoration, indoor air pollution is much more than the national health standards. More than 95% of indoor formaldehyde exceeded hygienic standard, the highest over the standard 60 times; some offices in indoor air formaldehyde content exceeded several times to dozens of times. National quality and technical supervision for the furniture in the formaldehyde pollution problem, a sample of 30 commercial enterprises in Beijing, Shanghai and Guangzhou three distribution of furniture products, the results of product failure rate of 64.4%.

How big the decoration pollution, Beijing each year has 350 people were killed in Beijing every year due to toxic building decoration materials caused by acute poisoning with more than 400, the number of 10 million people poisoning, 350 deaths. This is the information obtained from the author Beijing toxic chemical substances identified center. Survey statistics, the world each year 2 million 800 thousand people died directly or indirectly from the decoration pollution, decoration pollution has been listed as one of the biggest public health hazards of the five environmental problems.
According to the information provided by the Chinese Academy of preventive medicine, people spend an average of 66% of the time at home, so poor indoor air environment will cause the most direct harm to human health. According to the Chinese interior decoration Association indoor pollution detection and observation center to understand, in many decorative materials, toxic materials accounted for 68%, will produce more than 300 kinds of volatile organic compounds (VOC), and can cause more than 30 kinds of diseases. The most vulnerable are the elderly and children, because they stay indoors for the longest time, especially children also like to sit on the floor.
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