Whether the concentration of formaldehyde is high or low, it will affect or damage the human body, and the consequences of long-term exposure to high concentrations of formaldehyde can cause cancer. Because formaldehyde is a common indoor air carcinogen, formaldehyde is a colorless gas, but has a special pungent odor, soluble in water, alcohol and ether; formaldehyde has a long release period of 3-15 years.
The effects of low concentrations of formaldehyde on the human body:
When inhaling low-concentration formaldehyde, it makes people feel pungent, irritating the human respiratory tract and eyes, causing major symptoms such as tearing, sneezing, coughing, headache, dizziness, nausea, and conjunctivitis, rhinitis, and asthma in severe cases. , and diseases such as bronchitis. For the skin, the effects of even low concentrations of formaldehyde cannot be ignored, causing reactions such as dermatitis, skin redness, severe pain, cracking, and blisters.
Effects of high concentrations of formaldehyde on the human body:
Long-term exposure or exposure to high concentrations of formaldehyde will irritate the skin, throat, eyes, nasal cavity and lung mucosa, causing edema, inflammation, ulceration, and even nasopharyngeal cancer and blood cancer in severe cases. Formaldehyde is particularly harmful to infants and pregnant women; formaldehyde can also cause fetal growth arrest during pregnancy, cardiac hypoplasia, and in severe cases, fetal malformation or miscarriage and other serious consequences.
In 2011, the US National Toxicology Program described formaldehyde as a “known human carcinogen.” Formaldehyde increases the risk of cancers such as leukemia and nasopharyngeal cancer. The higher the level of formaldehyde in the air and the longer the exposure to formaldehyde, the greater the risk of cancer. The U.S. Environmental Protection Agency (EPA) has classified formaldehyde as a carcinogen; while the International Agency for Research on Cancer (IARC) has classified it as a carcinogen in the category of “causing cancer of the nose and throat”. Xu Shuchang, Chair Professor of Respiratory Medicine at the Chinese University of Hong Kong, said that human inhalation of formaldehyde and other volatile organic compounds (vOCs) can stimulate the respiratory tract and immediately cause symptoms of runny nose and water rafts; long-term exposure in an environment with no ventilation Formaldehyde increases the risk of cancer. According to statistics from the China Environmental Protection Association, 90% of children with leukemia have been renovated in their homes, which means that excessive formaldehyde is closely related to children’s leukemia.
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ELIMINATE – Using Nucleophilic Addition Reaction – Through the reaction of the nucleophile in the clear aldehyde with the double bond of formaldehyde, a new covalent bond is formed, thereby forming a stable and harmless substance to achieve the effect of removing formaldehyde.