What are the key factors that may endanger health in the indoor environment of the family?

According to the national standard "Code for Indoor Environmental Pollution Control of Civil Building Engineering", five pollutants, namely formaldehyde, benzene, ammonia, radon and TVOC, are listed for control.

The main source of formaldehyde

1, decoration materials and new combination furniture;

2.UF foam is used as thermal insulation material for building heat and cold protection;

3, paint, chemical fiber carpets, cosmetics and other products with formaldehyde as preservative;

4. Smoking indoors.

The main source of benzene

1, indoor paint decoration;

2. Wood coatings;

3. Adhesive;

4. Organic solvents.

The main source of ammonia

1, concrete antifreeze added in concrete wall during winter construction;

2. In order to improve the setting speed of concrete, high alkali concrete expansion agent and early strength agent are used;

The main source of TVOC

1. Wood-based panels, foam insulation materials and plastic plates in building materials;

2. Paints, coatings, adhesives, wallpapers and carpets in interior decoration materials;

3. Cosmetics, perfumes, fresheners, detergents, etc. Commonly used in life;

4. Office supplies mainly refer to ink, photocopiers, typewriters, etc.

5. Household fuel and smoking, human excreta and outdoor industrial waste gas, automobile exhaust and photochemical pollution.