Sources of formaldehyde
be unresolved/unsettled
1, all kinds of phenolic resin glue wood-based panels, such as plywood, particleboard, fiberboard and particleboard, are used as decorative materials such as wallboard and ceiling;
2. Decorative materials that contain formaldehyde and may be emitted to the outside world, such as wall covering, wallpaper, paint and painted pipes;
3 furniture, chemical fiber carpets, foam plastics and other indoor furnishings and daily necessities that may emit formaldehyde;
4. Some substances that emit formaldehyde after burning, such as cigarettes and some organic substances.
Some perfumes and mosquito killing liquids also contain formaldehyde.
6, such as cigarettes and some organic matter.
Wearing clothes
White or non-ironing clothes, especially some jeans, underwear advertised as 100% crease-resistant and shrink-resistant or all-cotton non-ironing shirts are all shaped with glyoxal resin and all contain formaldehyde. Formaldehyde has a strong stimulating effect on human skin, which can cause eczema and systemic allergy.
In food
Adding formaldehyde to food is often used for bleaching, egg white coagulation and preservation.
In the living room
First of all, indoor formaldehyde mainly comes from the use of various wood-based panels, including plywood, blockboard, medium density fiberboard, particleboard, furniture made of wood-based panels, wood-based panels and solid wood floors. Secondly, there are other kinds of decorative materials containing formaldehyde, which may be released to the outside world, such as curtains, wall covering, wallpaper, chemical fiber carpets, foam plastics and so on. Third, all kinds of paints, including solvent-based paints and water-based paints.
Various wood-based panels and adhesives used in the decoration process are the main sources of formaldehyde. Because of the strong adhesion of formaldehyde, the adhesive used in the production of wood-based panels is urea-formaldehyde resin with formaldehyde as the main component. Therefore, all kinds of wood-based panels, furniture and floors made of wood-based panels have a certain amount of formaldehyde residue. In addition, many decoration materials or adhesives need to be used in the decoration process. For example, wood floors need to be used in the decoration process. The bottom lining materials used in carpet manufacturing are water-soluble rubber such as styrene-butadiene latex and natural latex, which have strong adhesion. Wallpaper adhesives also use a lot of volatile organic solvents, which will release pollutants such as formaldehyde when used.
Because formaldehyde widely exists in decoration and decorative materials, China has set standard limits for formaldehyde emission from many building materials and indoor articles. For example, the Limits of Formaldehyde Emission from Wood-based Panels and Their Products for Interior Decoration Materials stipulates that the formaldehyde emission from medium and high density fiberboards and their products should be less than 9mg/ 100g, and that from plywood and joinery boards should be less than 1.5 mg/ 100 g.
Manifestations of formaldehyde poisoning
1. Every morning, I feel depressed, nauseous and even dizzy.
People often catch a cold at home.
Although I don't smoke, I often feel sore throat, foreign body sensation and poor breathing.
4. Children at home often cough and sneeze, and their immunity decreases.
5, family members often have allergies and other problems, and they are mass-produced.
6, * * * family members have diseases, and after leaving this environment, the symptoms have obviously changed and improved.
7. Newly-married couples are infertile for a long time and can't find out the reason.
8. Fetal malformation is found in pregnant women under normal pregnancy.
9. In a newly moved or renovated house, indoor plants are not easy to survive, and leaves are easy to yellow and wither.
10, after the new trick, domestic cats, dogs and even tropical fish died inexplicably.
1 1. I felt sore throat and dry respiratory tract at work, but I recovered after work.
12. Newly renovated residential and office buildings or new buyers have a pungent and irritating smell, and the smell lasts for a long time.
Food that releases formaldehyde
First, honey: sweet and flat, it has been a good product for nourishing and strengthening the body, detoxifying and nourishing the face since ancient times. Honey is rich in vitamin B, vitamin D, vitamin E, fructose, glucose, maltose, sucrose, high-quality protein, potassium, sodium, iron, natural spices, lactic acid, malic acid, amylase, oxidase and other elements, which has obvious effects on moistening lung, relieving cough, relaxing bowels, expelling toxin and caring skin.
Second, carrots: carrots are an effective detoxification food. It is not only rich in carotene, but also contains a lot of vitamin A and pectin. Combined with mercury ions in the body, it can effectively reduce the concentration of mercury ions in the blood and accelerate the elimination of mercury ions in the body. White radish, carrot and radish also have the above effects.
Third, kelp: kelp is rich in iodine, which is very beneficial to the human body and can treat diseases caused by goiter and iodine deficiency. Protein contains 18 amino acids. After the iodide in kelp is absorbed by human body, it can accelerate the elimination of pathological changes and inflammatory exudates, lower blood pressure, prevent arteriosclerosis and promote the excretion of harmful substances. There is a slightly sweet white powder on the surface of kelp, which is mannitol with great medicinal value. Has good diuretic effect, and can be used for treating drug poisoning and edema. Therefore, kelp is an ideal detoxification food, and middle-aged and elderly men should eat more kelp to keep the prostate and kidneys healthy.
4. Auricularia auricula: A kind of plant gum contained in Auricularia auricula has strong adsorption, which can concentrate the dust and impurities left in the human digestive system and then excrete them, thus playing the role of detoxification and clearing the stomach. Therefore, people who work in a dusty environment should especially eat black fungus.
5. Cucumber: Cucumber is a rare detoxification food. Cucumber contains cucumber acid, which can promote human metabolism and excrete toxins; The content of vitamin C is five times higher than that of watermelon, which can whiten skin, keep skin elasticity and inhibit the formation of melanin. Moreover, cucumber can also inhibit the conversion of sugar into fat, which is very beneficial to the lungs, stomach, heart, liver and excretory system. Summer is easy to be irritable and thirsty. If you have a sore throat or a lot of phlegm, eating cucumber can help to resolve inflammation.
6. Bitter gourd: Sweet, bitter and flat. Chinese medicine believes that bitter gourd has the effect of detoxification and beauty beauty. There is a kind of protein with obvious anticancer activity in bitter gourd, which can stimulate the defense function of immune system in vivo, increase the activity of immune cells and remove harmful substances in vivo. Although bitter gourd tastes slightly bitter, it has a sweet aftertaste. Experts suggest that women should eat more bitter gourd to facilitate menstrual flow.
Litchi: Sweet, sour and warm in nature, it has the functions of strengthening the spleen and benefiting the liver, promoting fluid production to quench thirst, detoxifying and stopping diarrhea. Litchi contains vitamin A, vitamin B, vitamin C, pectin, free amino acids, protein, iron, phosphorus, calcium and other elements. Studies have proved that litchi has the effects of tonifying kidney and essence, improving liver function, accelerating detoxification, promoting cell production and softening skin, and is an ideal fruit for detoxification and beauty.
Eight, pig blood: after the plasma protein in pig blood is decomposed by gastric acid in human body, it produces a decomposition product of detoxification and bowel clearing, which can react with dust and harmful metal particles invading human body and easily discharge toxins. People who have been exposed to toxic and harmful dust for a long time, especially drivers who drive cars every day, should eat more pig blood. In addition, pig blood is rich in iron, which can improve anemia and pallor, and is an ideal food for detoxification and beauty.
Mung beans: sweet in taste, cool in nature, and have the effects of clearing away heat and toxic materials and dispelling fire. It is a traditional Chinese medicine commonly used in traditional Chinese medicine to solve many kinds of food or drug poisoning. Mung beans are rich in vitamin B, glucose, protein, amylase, oxidase, iron, calcium and phosphorus. Regular consumption can help expel toxins from the body and promote the normal metabolism of the body.
Ten, tea: cool, sweet and bitter, with the functions of clearing away heat and annoyance, resolving food stagnation, losing weight and diuresis. Tea is rich in iron, calcium, phosphorus, vitamin A, vitamin B 1, nicotinic acid, amino acids and various enzymes, which is particularly effective in refreshing the brain, clearing the head, relieving summer heat and quenching thirst. Tea is rich in a bioactive substance? Tea polyphenols have detoxification effect.