Nowadays, many people are paying attention to PM2.5, and they have taken self-protection measures. Few people have noticed that there are many health hazards in the room. Xu Xiuyi, director of the Department of Thoracic Surgery at Xuanwu Hospital, said that indoor PM2.5 is not inferior to outdoor. Smoking, kitchen fumes, and decorative materials release harmful substances are the three major sources of indoor PM2.5.
Smoking is the main cause of indoor PM2.5 exceeding the standard
Smoke is an important source of indoor air pollution. In the room where people smoke, the micro-particles from second-hand smoke account for about 90% of the total PM2.5 in the room. The particle size of the soot particles is almost equal to or less than 2.5 microns, so nearly 100% of the particles sucked into a cigarette are PM2.5. Secondhand smoke has the same problem.
According to Zhi Xiu, as long as the smell of smoke can be heard in the room, PM2.5 has at least doubled. Moreover, smoking also brings the problem of “three-handed smokeâ€. The tiny particles produced by smoking will remain on clothes, walls, carpets, furniture and even hair and skin, and will be brought indoors and outdoors.
The kitchen is also the main source of indoor respirable particulate matter, including incomplete combustion of fuel used for cooking and cooking, and soot. If it is not discharged in time or window ventilation, it is easy to make the PM2.5 concentration in the kitchen exceed the standard.
The harmful substances released from the decoration materials are also one of the reasons for the indoor PM2.5 exceeding the standard. Paints, marble, plywood, particleboard, foam fillers, interior wall coatings, plastic veneers, adhesives and other materials contain organic volatiles such as formaldehyde, benzene, ammonia, toluene, etc., which will release a lot of harmful gases and are sustained release. These all have the potential to cause PM2.5 particles to be produced.
Dust accumulation is also an important factor affecting indoor air quality. The quilt, under the bed, carpet and household appliances are all dead spots of household dust.
Indoor PM2.5 focuses on prevention
Zhi Xiu emphasized that the indoor particle size is smaller, and the surface adsorbs more chemical components and is more toxic. Therefore, indoor prevention of PM2.5 is more important than outdoor. It is recommended that you take the following simple, effective, practical and economical methods to make you healthy in the room.
First of all, frequent ventilation, especially in the presence of indoor pollution sources, should be enhanced. Open the window at least 10 minutes in the morning, afternoon and evening every winter. Use a chemical agent for at least ventilating for half an hour. Every time you finish cooking, you must open the window to change the air; when frying and frying food, you should strengthen the ventilation. But also depends on the outdoor air conditions.
Second, smoking is banned. At the same time, when cooking, use less hot oil to stir-fry and use a good range hood.
In addition, environmentally-friendly decoration materials should be used for decoration, and more green plants should be planted. Chlorophyll, aloe vera, and tiger-tail orchid can absorb indoor formaldehyde and other pollutants; bactericidin secreted by flowers such as jasmine, clove, honeysuckle, morning glory, etc. can kill certain bacteria in the air and inhibit tuberculosis, sputum pathogens and typhoid bacteria. Growing.
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