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Pollution components in indoor air
Pollution components in indoor airI. Formaldehyde1. Formaldehyde pollution is colorless, but has a strong irritating odor; 2. In the air it can easily lead to tearing eyes, inflamed conjunctiva, skin allergies, coughing, acute and chronic bronchitis, and other respiratory diseases, and can even cause more serious illnesses such as nausea, vomiting, pneumonia, and pulmonary edema. II. Benzene 1. Benzene is a colorless but aromatic polluting gas; 2. Inhalation of high concentrations of benzene in a short period can lead to paralysis of the central nervous system, dizziness, nausea, vomiting, chest tightness, and other phenomena, and in severe cases, coma, breathing difficulties, circulatory failure, other symptoms. III. Ammonia 1. This is a colorless but highly irritating pollutant gas; If the human skin comes into contact with it, it will have a corrosive and irritating effect. If the concentration is too high, it may even cause cardiac arrest and respiratory arrest through the reverse action of the trigeminal nerve endings. IV. Radon 1. It is a kind of inert gas with radioactive hazards, colorless and odorless; 2. The major hazard is that it can easily lead to lung cancer. The latent period for inducing lung cancer is about 15 years or more, and it is the second major factor causing lung cancer. V. Volatile organic compounds 1. These are often referred to as TVOCs, which are chemical pollutants with boiling points between 50°C and 250°C; 2. They are harmful because they irritate the eyes and respiratory tract, cause skin irritation and make the body produce symptoms such as headache and weakness. |
