How long does it take for bitumen to dissipate?
Under normal circumstances, it takes about a month to dissipate indoors; if it is heated to 260 degrees Celsius, it usually takes only 5 hours for the toxicity to dissipate. Asphalt is one of the organic gelling materials, and is currently widely used in the construction of buildings, bridges and roads.
Mainly because it contains various organic volatile substances, and this substance can irritate the human body and skin. Among them, the substances that are more harmful to the human body include the following:
1. Acridine: It is irritating to the skin and mucous membranes, and the dust particles and gas are easy to sneeze, and the skin feels itchy and burning when it comes into contact with it. Acridine is one of the primary factors in the photosensitive effect, so the symptoms are exacerbated by exposure to sunlight, and this substance is completely absent in petroleum asphalt.
2. Phenols: As we all know, carbolic acid has a strong corrosive effect on the human body, and when in contact with the skin and mucous membranes, it can cause severe burns and even cause inflammation of the skin and mucous membranes.
3. Benzene: Benzene can be said to be an important component of coal tar. The vapor of benzene can completely cause headaches, dizziness or coma.
4. Pyridine: It will also have a strong drying effect on the skin, and it is easy to cause dermatitis, ophthalmia, and even make people breathe and pulse faster, nausea and other symptoms.
5. Anthracene: Its toxicity is similar to that of acridine, especially crude anthracene, which can also cause skin damage, skin cancer and other symptoms.
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