due to the special irritating taste of formaldehyde, the human body will produce various discomfort symptoms when exposed to a certain concentration of formaldehyde gas, such as throat pain, headache, nausea, etc. Usually, newly decorated houses contain high formaldehyde concentration. In addition, new houses with poor ventilation conditions may also exceed the standard of formaldehyde. Let’s take a look with you.
The consequences of formaldehyde exceeding the standard can be said to be very huge, so what are the hazards of formaldehyde to the body?
1. Damage to the respiratory system
formaldehyde, as an irritant gas, first causes serious interference to the healthy operation of the respiratory system. Formaldehyde can seriously stimulate the respiratory system and cause respiratory diseases.
2. Aggravate allergic reaction
formaldehyde stimulates the surface of the skin. Patients with skin diseases may aggravate the disease and cause chain symptoms after prolonged exposure to formaldehyde.
3. Increase the risk of cancer lesions
formaldehyde can increase the risk of cancer and is fatal and aggressive, especially infants or the elderly with low immune ability.
4. Cause a variety of symptoms
if the formaldehyde concentration seriously exceeds the standard, the human body will show a series of resistance measures. The occurrence of symptoms such as nausea, headache, chest tightness and shortness of breath will verify the abnormality of formaldehyde concentration. Especially for pregnant women in pregnancy, if they absorb a large amount of formaldehyde gas for a long time, it is easy to cause fetal and baby abnormal development, malformation or death.
Since the harm of formaldehyde is so great, the daily
treatment misunderstanding
1, oranges, pineapples and other fruits can not adsorb formaldehyde
, which was a method loved by many people in the past, It can be said to be a folk method. Many folk methods are the summary of life experience for a long time and the truth tested by time and practice. But this method is a completely absurd approach. CCTV financial channel “is it true” once broadcast a program, grapefruit peel and pineapple remove formaldehyde, is it true. In the program, an experiment was specially done. The experimental results show that in the same sealed bin, the formaldehyde content of the experimental bin with pomelo peel is ten times that of the blank bin. Because after putting the pomelo peel, the temperature of the experimental chamber increases and the formaldehyde emission increases greatly. Grapefruit peel and pineapple can not remove formaldehyde, but also increase the content of formaldehyde in the room. In the past, many people thought that after using grapefruit peel and pineapple, the indoor decoration taste was less, because the taste of fruit covered up the taste of formaldehyde. There are some & ldquo; in these plants to remove formaldehyde; Pipeline;, They react formaldehyde with specific chemicals to produce amino acids (such as serine). Or directly into carbonic acid and carbon dioxide, so as to enter the material cycle for the manufacture of new sugar, fat or protein. It seems that this process undoubtedly reduces the damage of formaldehyde to plant cells. On the other hand, it also increases the & ldquo; Nutrients & rdquo;. After all, there is no difference between carbon from formaldehyde and carbon from carbon dioxide. It’s a good way to kill two birds with one stone.
the main reason is that formaldehyde will combine with superoxide dismutase in plant cells to inactivate these key proteins, further destroy the cell membrane structure, and finally push down the wall. That is the key part to strictly control the entry and exit of nutrients, water and waste. So far, the fate of plants can be imagined.
2. Use water, vinegar and black tea to remove formaldehyde
many people on Amethyst online said that because formaldehyde is dissolved in water, you can put more water basins at home to absorb formaldehyde, or use vinegar or black tea to make water. It is a fact that formaldehyde is easily soluble in water, water, alcohol and ether. Free formaldehyde in the air will dissolve into water during movement, which is similar to the adsorption principle of activated carbon. The contact area between a basin of water and air is only the size of a basin, and the specific surface area of the internal pores of 1G activated carbon can reach the size of a football field. Even if you put a hundred pots of water in the room, the adsorption effect will not be much better than a small packet of activated carbon. Therefore, it is obviously unrealistic to use water, black tea, vinegar and other methods to adsorb formaldehyde. The release of formaldehyde is closely related to indoor temperature and humidity. With the increase of temperature in the air, the release of formaldehyde will increase greatly. The experimental results show that when the relative humidity in the air increases by 10%, the indoor formaldehyde emission will increase by about 5%.
3. Plant air purification is limited
. However, we must note that this is just an outbreak of plant resistance. Removing formaldehyde is a last resort for plants. There are many detours to be taken in harmless treatment, which is far less effective than photosynthesis in absorbing carbon dioxide.
in this process, plants themselves will also be injured. Many plants will also be injured and even die in the environment with high formaldehyde concentration. Oxalis sorrel is particularly sensitive. As long as it is thrown into the environment with formaldehyde concentration of 0.1 mg / m3 for 3 hours, 95% of the leaves will be injured (calculated by area ratio). Moreover, when the formaldehyde concentration increases, the speed of injury is faster. They can only persist in the environment with formaldehyde concentration of 0.4 mg / m3 for 3 hours. Then, the whole leaf becomes yellowish brown and wilts after losing water, becoming withered grass.