What are the hazards of formaldehyde exceeding the standard

Excessive formaldehyde will bring us the following hazards:

1, causing eye and respiratory mucosa effects.

The main symptoms caused by long-term exposure to low-concentration formaldehyde are tears, sneezing, cough and even conjunctivitis, rhinitis and bronchitis. If the concentration of formaldehyde in the air exceeds the national hygienic standard, it will do harm to human health to varying degrees.

2, the impact on the immune system

Excessive exposure to formaldehyde can lead to allergic asthma and allergic purpura. The contents of IgG and IgA in serum of people working in newly decorated environment have changed compared with those working in non-decorated environment, which can stimulate the production of IgG antibody and reduce the proportion of T lymphocytes.

3. Damage to the liver

Red blood cells and liver may be the initial target organs for formaldehyde to enter the blood circulation. Formaldehyde is mainly metabolized by the liver and excreted by the kidney. If the formaldehyde in the body exceeds the detoxification ability of the liver, it will damage the liver.

4. Effect on skin

It mainly causes contact dermatitis and mucosal irritation symptoms. Formaldehyde vapor can directly contact the skin in the air, causing dermatitis, skin redness, severe pain and cracking reaction. Repeated stimulation can lead to nail softening and dark brown.