Formaldehyde is a colorless and soluble irritating gas, and its release period is as long as 3 ~ 15 years. It can be absorbed through respiratory tract, and the harm of formaldehyde to human body has the characteristics of long-term, latent and concealed.

Formaldehyde has been identified as a carcinogen and teratogenic substance by the World Health Organization. It is recognized as an abnormal echo source and one of the potential strong mutagens. The harm of formaldehyde to human body is mainly manifested in dizziness, headache, chest tightness, limb weakness, cough and so on. Long-term exposure to highly harmful paint may lead to serious diseases, such as aplastic anemia, leukemia, tuberculosis and pleurisy, and even cancer.

Extended data:

Symptoms of formaldehyde poisoning

1, mild poisoning: eye and upper respiratory tract mucosa irritation symptoms are obvious. The main manifestations are conjunctival congestion, redness, dyspnea, heavy breathing, hoarse throat, dry or dull speech or wet greasy. Poisoned people can still feel their breathing getting thicker. Another specific symptom of mild formaldehyde poisoning is one to two degrees of throat edema.

2, moderate poisoning: cough, expectoration, chest tightness, dyspnea and dry and wet broken gongs. During chest X-ray, the lung texture becomes substantial, becoming scattered spots or flaky shadows, which is medical machine-made bronchopneumonia. The edema of throat is aggravated to grade three. Blood gas analysis will be accompanied by mild and moderate hypoxemia.

3. Severe poisoning: the lung and larynx deteriorated, pulmonary edema and fourth degree laryngeal edema, and the blood gas analysis was also serious, which was severe hypoxemia.

References:

Baidu encyclopedia-formaldehyde