As we all know, asphalt is often used in buildings, roads and bridges. The roads paved with asphalt can prevent skid and are more durable, so asphalt is widely used. However, in the process of use, it will be found that asphalt contains harmful substances, which is very harmful to the body and is easy to form asphalt poisoning. So what substances in asphalt can cause asphalt poisoning?

1, acridine: acridine is irritating to skin and mucosa. Its dust particles and gas can easily make people sneeze, and the skin will feel itchy and burning when it comes into contact with it; Acridine is an important factor of photosensitivity, so the symptoms are more serious when exposed to sunlight. This substance hardly exists in petroleum asphalt.

2. Phenols: mainly carbolic acid, which has a strong corrosive effect on human tissues. Contact with skin and mucosa can cause serious burns and inflammation of skin and mucosa.

3. Benzene: Benzene is an important component of coal tar. Benzene vapor can cause headache, dizziness, convulsions and coma.

4, pyridine: it has a strong drying effect on the skin, which is easy to cause dermatitis and ophthalmia. Even make people's breathing and pulse accelerate, headache, nausea and so on.

5. Anthracenes: Their toxicity is similar to acridine. Crude anthracene can cause skin damage and skin cancer.

6. Naphthalene: Naphthalene is the main component of coal tar pitch. Its gas can cause headache, nausea, vomiting and damage corneal epithelium; It can cause dermatitis when it irritates the skin.