Three Harms of Formaldehyde to Health
1.？ stimulate
The main harm of formaldehyde is irritation to skin and mucosa. Formaldehyde is a protoplasmic toxic substance, which can combine with protein. Inhalation in high concentration will cause severe respiratory irritation, edema, eye irritation and headache.
2.？ Sensitization: Direct contact with formaldehyde can cause allergic dermatitis, pigmentation and necrosis, and inhalation of high concentration formaldehyde can induce bronchial asthma.
3.？ Mutagenicity: High concentration of formaldehyde is still a genotoxic substance. Experimental animals can cause nasopharyngeal tumors under the condition of high concentration inhalation in laboratory.
Harm of formaldehyde to pregnant women
Formaldehyde is a colorless gas with a strong pungent smell. Formaldehyde is a highly toxic substance, ranking second in the priority control list of toxic chemicals in China. It has been identified as carcinogenic and teratogenic substances by the World Health Organization. It is one of the recognized allergens and potential strong mutagens. Pregnant women exposed to low-dose formaldehyde for a long time are prone to headache, fatigue, irritability, insomnia and other symptoms, and even cause pregnancy syndrome, neonatal chromosomal abnormalities, and eventually lead to fetal developmental malformation, abortion, fetal brain development damage, congenital heart disease and other congenital defects.
Harm of formaldehyde to children
1, indoor formaldehyde exceeding the standard induces blood diseases in children.
Medical research has proved that excessive indoor formaldehyde has become the main cause of leukemia. Harbin Institute of Hematology and Oncology treated 1500 children with hematological diseases last year. Among them, leukemia patients are as high as 80%, mostly 4-year-old children. Why do children become a high-risk group of leukemia at present? Ma Jun, director of the institute, said that in addition to the internal causes of children's fragile immune function, harmful gases such as formaldehyde emitted by interior decoration materials are also one of the "killers".
2. Excessive indoor formaldehyde increases the incidence of asthma in children.
It can be seen from the investigation of asthma caused by indoor formaldehyde exceeding the standard by American experts that asthma accounts for 12.4 of the total population in the United States. This disease affects children of all ages, and 65% children suffer from asthma in different degrees. According to the World Health Organization, 654.38 million people worldwide die of asthma every year because of indoor air pollution, of which 35% are children. According to statistics, the prevalence rate of asthma in children in China is 2-5%, and the prevalence rate of children aged 1-5 is as high as 85%! Formaldehyde has become the main cause of asthma in children.
3. Indoor pollution leads to lead poisoning in children.
The increasingly serious environmental lead pollution is the root cause of lead poisoning in people, especially children. ? Especially with the rapid development of economy and urban traffic, all kinds of interior decoration materials emerge one after another, interior decoration has entered thousands of households, and children's toys are becoming more and more abundant. Lead in gasoline and paint constitutes pollution to indoor environment. A survey conducted by an indoor sanitation survey agency in Britain shows that the lead content in indoor air is 1 times higher than that in park soil on average, which is a great threat to children who often move indoors on the ground. According to the survey, in Beijing alone, 20% of children's blood lead concentration exceeds the standard.
4. Indoor formaldehyde exceeds the standard, which greatly reduces children's intelligence.
200 1 British investment150,000 pounds "global environmental change" research group, after summarizing the research reports of scientists from various countries and conducting a lot of investigation and analysis, announced a shocking conclusion: environmental pollution has greatly reduced the intelligence of human beings, especially children! Dr Williams from the College of Education, University of London, who participated in the study, said: "This result exceeds people's previous estimates. The human brain is being damaged by human behavior. " Therefore, no matter from children's physical or intellectual development, the harm of indoor environmental pollution to children can not be ignored.
Harm of formaldehyde to infants
Professor, director of the Department of Hematology, Guangzhou Children's Medical Center, said that infants and young children in the period of rapid growth and development inhale twice as much formaldehyde as adults, and their intake of pollutants in the air is also greater than that of adults. ? Excessive formaldehyde content can cause allergies in infants and may even cause leukemia. Formaldehyde pollution will not only lead to miscarriage of pregnant women, fetal malformation, infant dysplasia, but also induce childhood leukemia in severe cases.
Method for removing formaldehyde
Since formaldehyde has so many hazards, we would like to ask how to remove formaldehyde, and what are the good methods to remove formaldehyde? For this reason, I also collected several main in addition to formaldehyde methods.
1. Ventilation in addition to formaldehyde: Through the circulation of indoor air, the content of harmful substances in indoor air can be reduced. Thereby reducing the harm of such substances to the human body. People often close doors and windows in winter, so the indoor and outdoor air can't circulate. Not only the content of formaldehyde in indoor air will increase, but also radon gas will accumulate continuously. Even at very high concentrations.
2. Activated carbon adsorption method? Activated carbon is an internationally recognized expert on drug abuse. Activated carbon masks and gas masks are made of activated carbon. Does this product use live? The physiological function of sex charcoal deodorizes and detoxifies; No chemical additives, no influence on human body. Put two or three discs in each room. 72? It can basically eliminate indoor odor. This method can be used for medium and low pollution, and can also be combined with other chemical methods? Use, comprehensive treatment effect is better (
3. Earth photo: 300? G black tea is soaked in two washbasins of hot tea, put indoors, open the window and ventilate, 48? Indoor armor? Aldehyde content will decrease? Above 90%, the pungent smell is basically eliminated.
4. Plant deodorization method? Plant decontamination can choose medium and low pollution: generally, indoor environmental pollution is light and moderate, and the pollution value is in the whole country? Standard? 3? In the environment below 100 times, plants can achieve better results. ? Choose and place plants according to different functions and areas of the room. Generally speaking, 10? About square meters? Room, 1.5? It is more appropriate to put two pots of plants one meter high.
5. Chemical in addition to formaldehyde? 1. Spray and other drugs are easy to cause secondary pollution and may damage furniture, while activated carbon belongs to physical adsorption and is very safe. All-round, harmless to human body, anti-mildew and anti-corrosion to furniture.
Conclusion: After knowing the harm of formaldehyde and in addition to formaldehyde's method, you should know how you and your family can enjoy a modern high-quality life healthily.
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