Many citizens think that pirated books are just a little poor in paper, which can save a lot of money. Xinhua Bookstore staff said that pirated books are inferior in paper quality and contain harmful heavy metals such as lead and mercury.

3. Pirated books are irresponsible to readers, and typos, ghosts and wrong colors affect the reading experience, which is troublesome for readers, especially children, to acquire knowledge. In addition, the materials of pirated books are also inferior, especially the ink used in pirated picture books, which contains toxic heavy metals such as lead, chromium and gong. These highly carcinogenic ingredients increase the risk of illness.

4. Many books with poor printing quality will be stained with various colors even if they are smeared on the pictures by hand. Children are more interested in bright colors. When reading, they can easily touch books with their hands, then eat without washing their hands, or even chew their fingers directly, thus unconsciously ingesting heavy metals such as lead and chromium.

5. Studies at home and abroad found that the blood lead content of children aged 1 ~ 3 years increased with age; After 3 years old, with the change of living habits, the number of hand washing increases, and the blood lead content in the body will change.