How much formaldehyde in the air is considered to be exceeded? Indoor formaldehyde is more or less e

The formaldehyde content specified in the national standard is less than the data measured under the closed condition of 12 hours, and the formaldehyde content of furniture or building formaldehyde content should be less than, and the formaldehyde content below the formaldehyde content in life is not easy to reach, but it is easy to achieve in building furniture.

If you exceed the standard is not very serious, use activated carbon, live ore or something, which is physical adsorption, and there will be no secondary pollution. If it is more serious, you can use some herbal extracts of Di Yalin, which is no secondary pollution, no harm, you can also find a professional formaldehyde treatment company, but generally this kind of company is more expensive.

Formaldehyde in the air is greater than cubic meter, which is considered to be exceeded. It needs to be treated, and I used the following methods to remove formaldehyde at home before:

1. First of all, it needs a lot of ventilation, which will help the flavor to disperse faster.

2. Then you can consider using some leaf wide mud, which can be used to effectively remove formaldehyde, and the effect is still good.

3. Water mixed with vinegar can play a role in stabilizing formaldehyde.

At present, the formaldehyde detection standards related to the indoor environment issued by the state mainly include:

1. The national standard of the People's Republic of China "Hygienic Standards for Formaldehyde in Indoor Air" stipulates that the maximum allowable concentration of formaldehyde in indoor air is milligrams and cubic meters.

2. The national standard of the People's Republic of China "Solid Wood Parquet" stipulates that the formaldehyde emission of Class A solid wood parquet is less than or equal to 9 mg 100 grams; The formaldehyde emission of class B parquet is equal to 9 mg - 40 mg 100 grams.

3. The "Technical Requirements for National Environmental Labeling Products - Artificial Wood Panels" stipulates that the amount of formaldehyde released in man-made panels should be less than milligrams of cubic meters; The amount of formaldehyde released in wood flooring should be less than milligrams of cubic meters.

It is best to get the necessary tests for your health. It is recommended to use the SGS formaldehyde testing service. Professional enough.

<>--- do an internal cleaning after the renovation, that is, "whole house detoxification"., you can:

1. Exempt from the cost of removing formaldehyde and removing formaldehyde many times;

2. Avoid the harm of decoration odor and secondary pollution of volatiles in aldehyde removal potion;

3. There is no need for the house to be vacant, ventilated for several months, half a year or even more than a year to release pollutants;

4. Safe occupancy, all pollutants are far below the national standard limit, and even close to 0;

5. Protect the immune system of the whole family from harm, and protect the health of the elderly, children, women and patients.

Taichang Environmental Protection Sanxin Air Pavilion Cleaning in the house (also known as whole house detoxification).

Indoor formaldehyde content is higher than that is unsafe living environment, even light pollution is unsafe, will pose a huge threat to human health, in order to protect the health of yourself and your family, it is recommended to treat formaldehyde before moving in through the following methods

1. Wise Stone.

It has regular honeycomb voids inside, its specific area is huge, can efficiently adsorb formaldehyde, its adsorption capacity is strong, can reach more than 20 times of the traditional activated carbon, not only the adsorption capacity is large, but also has the function of ion exchange, can decompose formaldehyde and other harmful substances into harmless carbon dioxide and water, without replacement can be used for a long time. When choosing, it is important to note that it is a gray ore with an irregular shape and is not a round particle.

2. Open windows for ventilation.

If you want to remove formaldehyde and odor as soon as possible, the first thing to do is to open the window for ventilation, open the cabinet doors and drawers at the same time, and dilute and discharge the formaldehyde to the outside through air convection. Although this step is simple, it is also necessary to pay attention to the weather conditions, so as not to break the newly renovated home environment with strong wind and rain.

3. Activated charcoal.

Activated carbon is a traditional physical adsorption material, which has been well received in the treatment of indoor and outdoor pollution, its specific surface area is large, and it has a strong adsorption capacity, but its adsorption capacity is limited, and it does not have the function of decomposition.

4. Formaldehyde remover.

Formaldehyde scavenger belongs to the chemical reaction treatment of formaldehyde, after the spraying can quickly achieve the purification effect, the pollution value will be significantly reduced or quickly reached, but for the chemical treatment of formaldehyde, under the conditions of changeable environment, there may be secondary pollution, and it can only treat the formaldehyde that has been volatilized into the air, the effect of subsequent volatilized formaldehyde treatment is not particularly ideal, and if you want to remove formaldehyde from the root, it can only be used as an auxiliary method.

Fifth, high temperature.

The release rate of formaldehyde mainly depends on two factors, one is temperature, the other is humidity, so we can use this characteristic of formaldehyde, use heaters, humidifiers, etc. to keep the room in a state of high temperature and high humidity, and then we can cooperate with ventilation or adsorption materials to absorb the formaldehyde that has been released at home, this method is mainly to treat the latent formaldehyde in the home, and the effect is very good.

There are many ways to remove formaldehyde, only by choosing the right method can we ensure health, and a variety of methods are used together, formaldehyde will be removed faster.

Strictly speaking, the content of formaldehyde above the room is excessive, and some infants and young children will have adverse reactions such as panting. Everyone must pay attention to the formaldehyde content when living in a newly renovated room.

Generally, the concentration of formaldehyde in the air in the general room exceeds the milligram per cubic meter, which is the formaldehyde exceedance.

M3 may cause significant physical discomfort and, in severe cases, permanent damage to the respiratory tract, eyes and nervous system. Let's take a look at how formaldehyde acts on the human body and how it seriously affects health.

How to prevent and control formaldehyde pollutionOpen windows for ventilation: The people of home decoration may be aware of the harm of formaldehyde.

Therefore, when decorating, we must choose building materials with air quality standards and good ventilation effect. 2. Use a fresh air system that can control formaldehyde: the effect of ventilation and ventilation in the decoration of a new house at home is only the most superficial effect, and the fresh air system is the most fundamental treatment method.

The function of the fresh air system is not to filter the indoor air, but to form a special negative pressure indoors, which can transfer the indoor air from the space that people cannot directly inhale to the area where ordinary people can breathe directly, so that the formaldehyde, benzene, and TVOC in the indoor air can be discharged to the outdoors to solve the problem of indoor air pollution from the source.

The fresh air system can not solve the problem of formaldehyde, and the fresh air system can discharge harmful substances such as formaldehyde, benzene, and TVOC in the room under the condition of air quality standards, instead of continuously depositing them into the body with people's breathing, as if taking drugs regularly. It is recommended to use better decoration materials: many friends will use better materials when decorating, but even if the materials are good, the formaldehyde concentration at home is also there, unless a professional testing company is invited to test the indoor formaldehyde content, but even a professional testing company cannot detect it at all.

Because good materials will be used in the decoration process of green plants to decorate, which is equivalent to adsorbing formaldehyde into the air, on the one hand, purifying the indoor air through green plants, on the other hand, using the original sterilization or decomposition function of plants, formaldehyde will be decomposed or decomposed to a harmless state.

Only by accelerating the decomposition rate and concentration of formaldehyde can we ensure that the detection results are effective.

4. It is recommended as much as possible.

Don't believe in those local methods, many of them are palliative. You go to the market to find someone to ask "Ye Duofen", this is very good, it is specialized in the treatment of formaldehyde, the boss will equip you with a professional spraying can, generally speaking, the new house can be sprayed two or three times to solve the problem, you must spray carefully, every paint on the wall must be sprayed carefully.

The amount of formaldehyde released in the room exceeds the milligram. 1. At present, the state has two standards, one is the cubic meter of the Construction Committee, and the other is the cubic meter of the Ministry of Health. If it exceeds this standard, it is excessive formaldehyde, as long as the formaldehyde exceeds the standard, the house can not be occupied, there is a baby, if the baby lives in the house with excessive formaldehyde, it may induce respiratory diseases.

2. Formaldehyde testing should be arranged 7 days after the decoration and decoration are completely completed. Within 7 days is the time when the concentration of various volatile pollutants is highest, and after 7 days, it can basically be reduced to a stable state, which is the best stage for detection. The longer the doors and windows are closed, the higher the concentration of indoor pollutants, you can use a formaldehyde tester for testing, and it is best to ask a professional formaldehyde company to detect it, which is more accurate.

3. The content of formaldehyde exceeds the standard will endanger our health, dizziness, nausea and other symptoms, and serious cases will lead to the occurrence of cancer.

Exceeding the national standard is 0 10mg m3 is considered serious.

The Indoor Air Quality Standard (GB T18883 2002), which came into effect on March 1, 2003, was established to protect human health and prevent and control indoor air pollution. Among them, the regulation of formaldehyde is that the average value of 1h should be less than or equal to 0 10mg m.

The formaldehyde volatilization time is very long, and the formaldehyde release time contained in wood-based panels and other decoration materials is about 3 15 years. The expectation that formaldehyde will be able to volatilize after a few months of ventilation and odor dispersion is unrealistic. Moreover, formaldehyde exists in a wide range, and almost more than 90% of building materials such as composite flooring and MDF on the market contain formaldehyde.

What is the normal value of formaldehyde, do you know? There may be many people who don't know, only know that formaldehyde is very harmful to our health, and if we live in an environment where formaldehyde exceeds the standard for a long time, it will indeed cause dizziness, cough, chest tightness, and serious life-threatening, but as long as it is controlled within the normal value, it will not have an impact, if you don't know how much the normal value of formaldehyde can look down.

What is the normal value of formaldehyde?

The main indoor formaldehyde is volatilized from decoration materials and furniture, and the standard stipulated by our country is that the normal value of indoor formaldehyde shall not be greater than, even if it is unqualified, according to the concentration of excessive amounts, it will also have different degrees of impact, the most significant symptoms are dizziness, chest tightness, poor breathing, etc.

Formaldehyde harm to the human body:

1.Mild formaldehyde pollution.

The scope of mild formaldehyde pollution is in, and mild formaldehyde pollution is often easier to ignore, because the content of formaldehyde in the room is too low, and the body will not have much reaction at the beginning of this environment, and after a long time, there will be dizziness, cough, chest tightness and other symptoms, and the first time will not think that it is caused by formaldehyde pollution, thinking that as long as you rest more, it will be fine, until more serious symptoms of shock and coma, which is already very dangerous.

2.Severe formaldehyde pollution.

The range of severe formaldehyde pollution is into, compared with mild formaldehyde pollution, the symptoms are naturally more intense, generally within 24 hours to 48 hours, there will be dyspnea, chest tightness and shortness of breath, sore throat, coughing up blood and persistent low-grade fever, general fatigue and other symptoms, and in the environment of severe formaldehyde pollution, indoor plants will wither for no reason, which can be used as a criterion for judgment, the environment with severe formaldehyde pollution is not suitable for living anymore, and must be moved away immediately, otherwise it will threaten life.

1. Decoration materials.

2. Wallpaper. Before pasting wallpaper, a layer of putty will be scraped, and the putty is made of talcum powder and glue stirred, the glue itself is the main formaldehyde, and after pasting the wallpaper, formaldehyde is difficult to send off, which is also another major source of formaldehyde pollution in the home, in fact, the formaldehyde content of the wallpaper itself is not high, and a large amount of glue is used when pasting, which leads to the continuous release of formaldehyde in the glue.

3. Soft decoration such as curtain fabric.

This part of the material itself has less formaldehyde, but it is the secondary source of indoor formaldehyde, not only the surface area is very large, but also the adsorption capacity is also very strong, in the case of poor ventilation, the release of formaldehyde will first be adsorbed by curtains and other materials, when the indoor formaldehyde concentration is reduced, it will be slowly released to form secondary pollution.

Formaldehyde is a harmful gas to the human body, so, what is the safe value of formaldehyde?

In fact, according to the relevant regulations, the state requires that the maximum indoor formaldehyde content of building standards shall not be exceeded, while the requirements of the Ministry of Health are relatively more relaxed, requiring that the indoor formaldehyde content of decoration standards shall not be exceeded. In general, we test according to the standards of the Ministry of Health, so it is safe to measure no more than one at home.

So, how to eliminate formaldehyde indoors? In fact, if you want to eliminate formaldehyde in the room, you can use the following method:

The first method is ventilation. In fact, ventilation is the most effective way to remove formaldehyde, and opening windows for ventilation can promote indoor and outdoor air circulation, removing formaldehyde through natural dilution, which is also the most commonly used method. However, it is worth noting that the release of formaldehyde is actually very slow, and it can even reach more than three years in the long term, and it is by no means a few months of ventilation that can solve the problem.

Of course, formaldehyde is also released when the temperature and humidity in the room change, so be sure to ventilate the room regularly to help dilute the formaldehyde concentration.

The second method is to use activated charcoal. In fact, activated carbon adsorption is also a good way to remove formaldehyde. The principle is that activated carbon can rely on its own developed pore structure and surface area, and can be exposed to the surrounding air to a large extent, and passively adsorb some pollutants into its own pores.

It is precisely because of this ability of activated carbon that it is widely used to remove indoor formaldehyde.

The third method is greenery. Plants are able to photosynthesize, and in this case, they can inhale some of the harmful substances and produce oxygen. However, it is worth noting that not all green plants can remove formaldehyde, so be sure to use plants that can absorb formaldehyde.

All in all, if the formaldehyde in the room exceeds the standard, you can use the above methods.