According to surveys conducted by international organizations, 30% of the world\'s buildings contain indoor air that is harmful to health. These harmful gases have caused a global increase in population morbidity and mortality.
Indoor environmental pollution has been included in the five environmental factors that are most harmful to public health. After experiencing "soot pollution" and "photochemical pollution", people are entering the third pollution period marked by "indoor air pollution".
Characteristics of Indoor Air Pollution
Due to the wide range of sources of indoor air pollutants, a variety of pollutants on the human body to different degrees of harm, and in the modern building design more and more to consider the effective use of energy, so that the indoor and outside the ventilation is very little, in this case the indoor and outdoor into two relatively different environments, so the indoor air pollution has its own characteristics, mainly expressed in the following aspects:
(1) Long-term
Many indoor air pollutants can be extremely harmful to the human body in a short period of time, while some have a long latent period. For example, radioactive pollution - radon and its daughters.
(2) Cumulative
Indoor environment is the main place where people live and work. At least half of a person\'s life is spent indoors, so long exposure to polluted indoor air environment, the cumulative harm of pollutants on the human body is more serious.
(3) Diversity
There are many kinds of indoor air pollutants, including physical pollution, chemical pollution, biological pollution, radioactive pollution and so on.
The dangers of indoor air pollution.
Indoor pollutants are mainly divided into five types: formaldehyde, benzene, ammonia, TVOC and radon, of which formaldehyde ranks second high on China\'s priority control list of toxic chemicals and has been identified by the World Health Organization as a carcinogenic and teratogenic substance. The release of pollutants in the indoor environment is a long process.
Generally, the release of chemical pollutants in the indoor environment is greater in environments with high temperatures. However, in some cases the indoor temperature is low, the concentration of harmful gases produced by decoration and furniture is not very high, and the indoor odour is not very strong, so many families take it lightly and move into the new house without waiting for the complete release.
There are many environmental monitoring devices available in the market, which are used to know the quality of the air environment in real time, both at home and in industry, so that you can choose the one that suits the scenario and monitor it, so that you can use the appropriate measures to improve the environment.
The Need for Indoor Air Quality Inspections
Studies have shown that indoor air pollution is often more serious than outdoor pollution, containing more harmful substances that can easily cause human diseases. In order to avoid the harm of indoor air pollution to human health, in addition to pay attention to the design of the renovation programme, construction technology and material selection, should also pay attention to indoor ventilation, and in a timely manner to do a good job of indoor air testing and purification before moving in.
About 80% of a person\'s life is spent indoors, especially the old, the weak, the sick, the handicapped, the young, the pregnant and other frail people in indoor activities for a longer period of time, the quality of the indoor environment is good or bad degree of their physical and mental health is more important. Therefore, it is very important to strengthen the monitoring and management of indoor environment to ensure people\'s health.
Especially in places with large populations, it is particularly important to use environmental monitoring instruments to enhance indoor air testing and maintain a green living and office space so that the general public can have a healthy body.
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