The five major sources of indoor air pollution and hazards, does your family have it?
Indoor air pollution ranks among the four key environmental problems in the world. Indoor environmental pollution caused by construction, decoration and furniture has become a major killer affecting people’s health. At present, the sources of indoor air pollutants are mainly the following:
Formaldehyde has become the primary pollutant in the indoor environment, causing widespread concern in the society. It mainly comes from interior decoration, adhesives for decorative materials and preservatives. The indoor environment in China is seriously polluted, and 60% to 94% of the newly renovated rooms have a formaldehyde concentration exceeding the national standard.
Formaldehyde has been identified by the WHO as a teratogenic substance and is also one of the potential strong mutagens. A large number of studies have shown that children are more sensitive to formaldehyde, 0.06 ~ 0.07mg / m3 of formaldehyde can cause mild asthma in children, 30mg / m3 of formaldehyde can cause children to die.
Helium is one of the most common indoor pollutants, mainly from building materials and home-based soils. Studies have shown that xenon pollution is the second factor that causes lung cancer, second only to smoking. Relevant statistics show that 50,000 people die from lung cancer every year in China. The carcinogenic incubation period of hernia in the human body can be as long as 15 to 40 years.
3, benzene series
Benzene contains benzene, toluene and xylene. It is one of the most common indoor pollutants. The main sources are various adhesives, paints and waterproof materials. WHO and international cancer agencies have identified benzene as a carcinogen. Long-term exposure to low- and medium-concentration benzene can cause neurasthenia such as headache, insomnia, lack of energy, and memory loss. In severe cases, the liver is damaged, leukopenia is reduced, and leukemia and aplastic disease are caused. Anemia; for pregnant women, the harm is greater, it will cause congenital defects of the fetus.
Ammonia gas has corrosion and irritating effects on the tissues it touches. It is one of the most common indoor pollutants, mainly from construction, decoration and decorative additives. Ammonia is irritating to the human respiratory system, causing not only direct sensory stimulation, but also pulmonary edema.
5. Volatile Organic Compounds (VOCs)
VOCs are a general term for a variety of pollutants. As mentioned above, formaldehyde and benzene series are all VOCs, which have a wide range of sources and have a great impact on human health.
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