Indoor air pollution is more serious in summer than in winter

Add Date:2015-4-15   View:

Why is the pollution more serious in summer?
1. Air-conditioning is generally used in summer to lower the temperature, the doors and windows of the room are tightly closed, and the indoor air exchange rate is relatively low.
2. In the case of high temperature and high humidity in summer, the release of some toxic and harmful gases will increase. The research of Japanese indoor environment experts has proved that when the indoor temperature is 30 degrees Celsius, the indoor toxic and harmful gas release is the highest.
3. The impact of changes in summer weather. In summer, the temperature in the general air is relatively high and the air pressure is relatively low, so that the pair of indoor air and outdoor air is correspondingly reduced, and it is easy to cause the stagnation of polluted gas.
4. In summer, the body’s own metabolism and the volatile components of various domestic wastes increase, which intensifies indoor air pollution. According to the results of indoor environmental testing conducted by the Indoor Environmental Monitoring Center in Beijing in the past two years, the indoor environment in summer Air pollution is more than 20% higher than in other seasons.

The performance of several major harmful gases exceeding the standard:
Formaldehyde: Formaldehyde is recognized as a potential carcinogen in the world. It irritates the eyes and respiratory mucosa, and eventually causes abnormal immune function, liver and lung damage, and the nervous system is affected. It can also cause fetal malformations.
Benzene: mainly derived from glues, paints, paints and adhesives. It is a strong carcinogen. If people absorb high concentrations of benzene in a short period of time, they will have symptoms of central nervous system anesthesia. In mild cases, dizziness, headache, nausea, and fatigue , Consciousness, severe cases will appear coma and even respiratory and circulatory failure and death.
Ammonia: Ammonia is a colorless gas with a strong irritating odor. Because of its high solubility, ammonia is often adsorbed on the skin, mucous membranes and conjunctiva, causing irritation and inflammation. Inhalation of a large amount of ammonia in a short period of time After breathing, it can cause tearing, sore throat, hoarse voice, cough, bloodshot sputum, chest tightness, dizziness, headache, nausea and other symptoms. In severe cases, pulmonary edema, adult respiratory distress syndrome, and respiratory tract irritation may occur. symptom.
Radon: Radon cannot be seen or smelled. Even in an environment with a high concentration of radon, people have no sense of it. Radon is the second leading cause of lung cancer. "A day in a room with excessive radon gas is equivalent to smoking more than 100 packs of cigarettes a day." The introduction of an expert's image shows just how harmful radon is.