Is graphite harmful to the human body?

For thousands of years in China, people have used brushes to write. Brushes need to be used with inkstones to work. Nowadays, people often use water-filled pens to write, but water-filled pens are actually evolved from brush ink. Although brushes have gradually faded out of our daily lives, there are still many children who learn calligraphy as their hobby from an early age. However, many parents are worried that the inkstone graphite will cause harm to their children's bodies?

Graphite is an allotrope of elemental carbon. Each carbon atom is connected to three other carbon atoms (arranged in a honeycomb-like pattern of multiple hexagons) by covalent bonds to form a covalent molecule. Because each carbon atom gives up an electron, those electrons are able to move freely, so graphite is an electrical conductor.

Graphite is not harmful to the human body. Compared with other dusts, the harm of graphite powder to the human body is minimal. I work in a graphite powder mine, and many elderly people around me have lived there for many years and they have no health problems. However, graphite powder has a greater impact on plants. After animals, such as cattle and sheep, are slaughtered, there is no impact on the meat quality, and there is no discoloration of any organs. . But in theory, it is good to eat more black fungus, which can clear the lungs. If you have phlegm, it may be due to

As for inflammation, the physical permeability of graphite powder is very good and it has little effect on people, so you don't need to worry too much. . .

Symptoms of graphite pneumoconiosis

1. Mostly mild, progresses slowly, with dry throat in the early stage, cough, and sputum, which is black. Corresponding symptoms and signs may occur when there are complications.

2. Chest X-ray manifestations: In the early stage, irregular small shadows and reticular shadows can be seen in the middle and lower lung areas. Against the background of the reticular shadows, small round shadows of 1 to 2 mm can be seen with low density. Sometimes a slightly larger circular shadow can be seen. The lung markings are often increased. The density of the hilar shadow may increase, but a significant increase is rare. In a few cases, emphysema and perifocal emphysema may occur.

3. Pulmonary function test: There may be mainly obstructive ventilation dysfunction and emphysema.