Heavy metal is another big killer of furniture. It is no less harmful than formaldehyde.

It is understood that according to the "Limits of Hazardous Substances in Wood Furniture for Interior Decoration Materials", four heavy metals such as cadmium, chromium, lead and mercury must be within the limits of the standard, that is, lead ≤ 90 mg / kg, cadmium ≤ 75 mg / kg, Chromium ≤ 60 mg / kg, mercury ≤ 60 mg / kg. On the basis of the general technical conditions for children's furniture, the limit requirements of four heavy metals are added, namely: 锑 ≤ 60 mg / kg, arsenic ≤ 25 mg / kg, 钡 ≤ 1000 mg / kg, selenium ≤ 500 mg / kg.

National standard update speed needs to be speeded up

At the Lanjingli Family Dazhongsi store, the reporter noticed that parents' awareness of environmental protection has generally improved. Most parents ask for the amount of formaldehyde released from the furniture when they choose furniture for their children. However, few parents will ask. Whether the heavy metal content exceeds the standard. And most parents often choose colorful furniture in order to meet the needs of their children.

According to Wang Jing, children's furniture usually has more colors and more vivid colors. It is worth noting that whether the furniture paint is oily or water-based, the brightly colored paints generally contain more heavy metals than ordinary paints. Some children's household items, such as colored fabrics and textiles, contain heavy metals.

According to the reporter, the soluble heavy metals in wood furniture products mainly come from the color paint coating film on the surface of the product, especially the color paint content. In addition, inorganic pigments are usually made from natural minerals and are produced through a series of chemical and physical reactions, which inevitably contain trace amounts of heavy metals. The General Technical Conditions for Children's Furniture has increased the limit requirements for four heavy metals such as antimony, selenium, arsenic and antimony. It is because children often use their mouths and hand rubbing items for daily contact, which is easy to be harmful. The substance is brought into the body.

Wang Jing said that China's national standard update rate is slow, and the update speed of some indicators is far behind international standards. Although the overall technical development level of China's building decoration materials is constantly improving, there is still a lot of research work to be done, especially in terms of environmental protection and health, there is still much room for improvement.

●Reporter's notes

Furniture heavy metal detection can not be taken lightly

Compared with formaldehyde, the content of heavy metals in furniture, whether it is furniture manufacturers or consumers, obviously lacks enough attention.

Many merchants are not able to produce furniture heavy metal test reports. Although some manufacturers have test reports, most test reports only involve formaldehyde, and rare heavy metals are detected. This phenomenon should be highly valued by people, and the detection of heavy metal in furniture should not be taken lightly.

Formaldehyde hazards are well known for nearly 10 years. As more and more commercial houses enter the market, the home decoration and decoration industry is becoming more and more popular, and various pollutants have also disrupted the lives of the people. A kind of gas that directly harms health, formaldehyde, has become the object of people's criticism. The harmfulness of formaldehyde has also been deeply recognized by the public.

In fact, heavy metal pollution and formaldehyde in the same time into the family, the harm can not be underestimated. Wang Jing, a professor-level senior engineer at the China Building Materials Science Research Institute, said that furniture surface coatings can carry heavy metals into the body under the action of human body contact friction or suitable solvents, that is, heavy metals can migrate through appropriate media. human body. Soluble heavy metals are extremely harmful to the human body. For example, lead can damage human nerves, hematopoiesis and reproductive system, especially for children and adolescents, which may affect children's growth and development and intellectual development; long-term inhalation of cadmium may impair kidney and lung function; Long-term exposure to chromium compounds can cause dermatitis and eczema; chronic mercury poisoning can cause central nervous system diseases; sputum and arsenic can cause radiation damage to the skin, causing skin pigmentation, leading to abnormal keratinization; people will get rickets when selenium is excessiveé’¡ It can cause a burning sensation when it comes into contact with skin or eyes.

However, due to the strong concealment of heavy metals, the public often loses their vigilance. These heavy metals are invisible and invisible, and the harm to the human body is not as easy to detect as formaldehyde. Therefore, people's prevention of heavy metals is far less careful than formaldehyde. In fact, the danger of heavy metals is no less than formaldehyde, which is widely found in household items, including furniture, ceramics, colored fabrics, plastics, toys, stationery, etc. From this point of view, the monitoring of heavy metal content can not be careless.

Heavy metals in household items are especially harmful to children's health. The number of children aged 0-14 in China has exceeded 200 million, accounting for about one-seventh of the total population. About 40% of households in China have children's rooms, and there is a trend of increasing year by year. The environmental health of household goods is directly related to a large number of children's consumer groups. Therefore, relevant national law enforcement agencies should strengthen the monitoring of heavy metal content in household household goods.