What are some examples of building materials that cause harm to humans and the environment

I. Indoor decoration pollution killers are mainly: formaldehyde, benzene and benzene series, ammonia, total volatile organic compounds (TVOC) and radon

II. Various indoor decoration pollutants harm the following five major indoor pollutants once the existence of the volatile period will last 3-15 years, which is determined by its physical and chemical properties.

1. Formaldehyde hazard formaldehyde was identified by the World Health Organization as carcinogenic and teratogenic substances. Decorative materials in a variety of artificial boards and furniture in the free formaldehyde has caused fetal malformation. Because formaldehyde exceeds the standard and lead to fetal malformation is now commonplace. --- Mainly from: plywood, large core boards, medium density boards and particle boards and other boards and a variety of adhesives; all kinds of man-made panels (such as plywood, fiberboard), paints, organic solvents, chemical fiber supplies, plastic flooring and other decorative materials can be released with a strong irritating odor of formaldehyde gas. Long-term exposure to formaldehyde can cause chronic poisoning. It may also cause nasopharyngeal tumors and cancer;

2. Benzene is recognized by the International Health Organization as a strong carcinogen and causes leukemia. Benzene and benzene-related substances cause skin dryness and aging, eczema and hematopoietic system, neurological disorders; serious cancer serious damage to the health of women of childbearing age: lead to menstrual abnormalities, often misdiagnosed as functional uterine bleeding and missed treatments; lead to miscarriage, fetal congenital defects lead to blood disorders: initially, the appearance of dizziness, insomnia, fatigue, memory loss and other neurasthenia; later, the appearance of white blood cells, platelet reduction, resulting in regenerative disorders. , platelet reduction, leading to aplastic anemia, triggering leukemia. It is benzene pollution, resulting in a surge in the incidence of childhood leukemia in the past two years --- Mainly from: paints, coatings, a variety of adhesives; paste wallcoverings, wallpaper, synthetic carpets, waterproofing materials, etc.;

3. TVOC is made up of a wide range of varieties of volatile organic compounds Stimulate the eyes, nasal mucous membranes, the respiratory tract, and through the blood caused by the brain disorders, resulting in the central nervous system by resisting the human being to produce Headache, fatigue, drowsiness symptoms, the formaldehyde component of TVOC will harm the liver, kidney function, damage to the human body's immunity, and even the formation of the nervous system, serious paralysis can be caused. Toluene, xylene, styrene, ethylbenzene, etc. will destroy the human hematopoietic function, make the fetus deformed or infertile. Severe poisoning can lead to respiratory and circulatory failure and death, which is even more harmful to the human body.

4. Ammonia Damage to human immunity stimulate and corrode the upper respiratory tract, weakening the body's resistance to disease --- Mainly from: antifreeze used in building construction;

5. Radon and other Other radioactive substances: radioactive substances seriously damage the immune system, nervous system, reproductive system and digestive system --- mainly from: natural granite, marble, ceramic tiles, etc. (of which the red granite is the most radioactive). And natural stone, building blocks, foundation soil, marble have different concentrations of radon.