What Is Formaldehyde Poisoning?

The severity of the signs of formaldehyde poisoning depends on the amount of formaldehyde inhaled or ingested by a person, and what should be done to correctly identify it in the earliest symptoms of formaldehyde poisoning. Formaldehyde (chemical molecular formula HCHO, molecular weight: 30.03, is a colorless gas with a strong pungent odor. It is easily soluble in water and alcohol ether. It is gaseous at normal temperature, usually in the form of aqueous solution and gaseous form. Exposure to high concentrations of formaldehyde vapor caused systemic diseases, mainly eye and respiratory damage.

Formaldehyde poisoning

The severity of the signs of formaldehyde poisoning depends on the amount of formaldehyde inhaled or ingested by a person, and what should be done to correctly identify it in the earliest symptoms of formaldehyde poisoning. Formaldehyde (chemical molecular formula HCHO,

When its concentration reaches 0.08-0.09mg / m3 per cubic meter of air, children will have mild

1. Ventilation method

The ventilation method does not need to be explained too much. It is a simple and effective method to exhaust harmful gases to the outside through the flow of air. The disadvantage is that the formaldehyde release cycle is long, usually three to fifteen years. It is obviously unrealistic to be idle for more than three years. Therefore, the ventilation method alone cannot meet the requirements.

2.Physical adsorption

To explore further

Among all contacts, children, the elderly and pregnant women are particularly sensitive to formaldehyde, and the harm is even greater. They are the main pollutants in decoration and furniture. Its release period is as long as 2-10 years, and it will volatilize from the deep layers of the material when it is exposed to heat and tide, which seriously pollutes the environment and has become a difficult problem to be solved worldwide. It is most harmful to the elderly, children and pregnant women.

On the morning of May 9th, netizens broke the news that a number of junior high school students in Xin'aili Mongolian Township Middle School in Da'an City, Jilin Province had symptoms of suspected formaldehyde poisoning, which was suspected to be caused by excessive formaldehyde levels in the new school premises recently moved by the students ^[5] .

Netizens broke the news on the morning of the 9th. All third-year students of Xin'anli Township School in Da'an City had symptoms such as cough, nausea, and vomiting. After the hospital examination, they were diagnosed with formaldehyde poisoning. The situation was particularly serious, which caused the students' poisoning. It is the newly built teaching buildings and dormitories of the school, as well as the newly purchased tables and chairs that have exceeded formaldehyde standards. Parents intervened to investigate, but no one responded. However, the netizen renamed on the afternoon of the 9th "the formaldehyde content in the blood could not be detected.