Inferior spices often contain excessive toxic substances such as formaldehyde and benzene and metal elements such as mercury and lead. The stronger the fragrance, the higher the content. Long-term exposure of children, especially sniffing, inhaling and biting, will cause inflammation of the nose and throat, causing headaches, nausea, memory loss, ADHD and other problems.
Moreover, these toxic substances are inhaled into human body and accumulated in some organs, which will cause chronic poisoning of human body, especially diseases of nervous system and blood system.
Extended data
Highlighter characteristics
Highlighter pen has a fluorescent agent, which will produce fluorescent effect when it meets ultraviolet rays (such as sunlight, fluorescent lamp and mercury lamp), and emit white light, thus making the color look dazzling fluorescent. ?
The fluorescent principle of highlighter is different from that of our watches and glow sticks. The inside of the glow stick is radioactive, and the generated rays excite the surrounding fluorescent powder to emit light, so it can also emit light at night without any ultraviolet rays. The highlighter will only fluoresce when there is ultraviolet light. Just put the handwriting of the highlighter near the mosquito trap lamp and the money detector, and you can see it very clearly.
China News Network-Children prefer fragrance when buying stationery, and long-term use will lead to chronic poisoning.