According to the national indoor air quality standard (GB / T 18883-2002), the limit value of formaldehyde content in indoor air is 0.10mg/m?, which is applicable to residential and office buildings. Other indoor environment can refer to this standard. As a professional formaldehyde institution, the environmental protection department is conducting indoor formaldehyde treatment consultation, which is a national standard to control the formaldehyde concentration in the customer's home within the scope of the national standard, so as to ensure the safe occupancy of the customer.
The content standard of indoor formaldehyde pollutants is more important for vulnerable groups. The elderly, children, pregnant women, patients and other vulnerable groups are more vulnerable to formaldehyde than the general population. Therefore, when the vulnerable groups live indoors, the indoor formaldehyde content should be low, and the indoor formaldehyde content should be kept at least 0.10mg/m. The following is normal. In addition, the indoor volatilization period of formaldehyde is up to 3-15 years, so the prevention and control measures or control measures should be taken in time to avoid formaldehyde exceeding the standard.
Now we should know how much indoor formaldehyde content is normal. If indoor formaldehyde exceeds the standard, what adverse reactions will human body have in different concentrations of formaldehyde environment?
When the formaldehyde concentration in the air reaches 0.06mg/m, children will have mild asthma;
When the formaldehyde concentration in the indoor air reaches 0.1mg/m?, there will be peculiar smell and discomfort;
When the formaldehyde concentration in indoor air reaches 0.5mg/m, it can stimulate eyes and cause tears;
When the formaldehyde concentration in the indoor air reaches 0.6mg/m, it may cause throat discomfort or pain.
When formaldehyde concentration in indoor air is high, it can cause nausea, vomiting, cough, chest distress, asthma and even pulmonary edema.
When the formaldehyde concentration in the indoor air reaches 30mg / m, it will cause immediate death.
After the new house is decorated, do not neglect formaldehyde pollution. Once formaldehyde is found to exceed the standard, it is best to manage it in time to create a green and healthy breathing environment for yourself and your family. Engineer's suggestion: when indoor formaldehyde content is controlled at 0.10mg/m, it is normal.