Can you escape PM2.5 while you are indoors? This idea is too naive! In addition to the ubiquitous particle killer, there may be pets, second-hand smoke, dust mites, and bacterial viruses in the house. To be truly safe and comfortable, there is no shortage of ways to control indoor air pollution!
Various pollutants in the home environment
Being in an indoor environment, when you smell a pungent odor, or feel tingling, headache, dizziness, nausea, difficulty breathing, or someone smoking by your side, it means there is a high probability of air pollution. At the same time, there may be many colorless and odorless harmful pollutants in the indoor air, which pose a threat to the health of the human body and must not be ignored.
How to control air pollution in your home
Source control
Reducing and eliminating indoor pollution sources is the most cost-effective way to improve indoor air quality and improve comfort.
Choose green building materials and decorative materials;
Purchase environmentally friendly furniture;
No smoking indoors;
Use chemicals, cosmetics, and various aerosols with caution or less.
In real life, it is not a simple matter to be able to purchase green building materials and decorative materials. The high price is on the one hand, on the other hand, many consumers may not even be able to buy real environmentally friendly materials even at high prices. The market operation has not yet been fully regulated, including the lack of unified management of materials, factories, sales and sales venues. Some medium and low-end product companies still have the problem of maliciously raising prices and obtaining high profits.
Clean and hygienic
Clean the room, remove dust, and clean the bed;
Keep the room environment dry.
Dust mites like to live in a humid environment, so try to keep the room environment dry. Wash the bedding once every 1-2 weeks with hot water above 60 °C, and always expose to the sun. Need to pay attention: during the cleaning process, the mites hidden in the bed and sofa and its excrement may fly in the air with the finishing, and then inhaled into the bronchus, which may cause obvious allergic symptoms.
Ventilation
Ventilation is the key to improving indoor air quality. Use outdoor fresh air to dilute indoor air pollutants to reduce the concentration. However, if the outdoor air is heavily polluted, ventilation should be avoided if there is a high level of dust storms, respirable particulate matter or other contaminants.
Use air purification equipment
Air purification equipment can absorb airborne suspended matter, filter dust, bacteria and viruses, and deodorize. If you put an air purifier at home, you can bring clean air and a comfortable living environment.
Master the methods of controlling indoor pollution to help you improve your home environment!
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Experts pointed out that six measures should be taken to prevent indoor pollution: frequent ventilation and ventilation, selection of environmentally friendly decorative materials, clean indoor hygiene, rational use of air purification equipment, indoor smoking ban, cooking hood.
In recent years, the sales of air purifiers are hot, the brands are numerous, and the quality is uneven. How to choose a suitable empty net product has become a difficult problem. It is understood that the newly revised ‘Air Purifier’ national standard, which was implemented in March 2016, clearly defines the basic technical indicators of air purifiers and the signs of air purifier products. Among them, the basic technical indicators of the air purifier are ‘clean air volume’ and ‘cumulative purification amount’, which is the ‘purification ability’ and ‘sustainability of purification capability’ of the air purifier product.
According to experts, the amount of clean air refers to the volume of air that can be purified by the air purifier per unit time; the cumulative amount of purification refers to how much the air purifier can purify.
So, how long should the air purifier be open? It is recommended that the smog can be turned to the maximum speed for half an hour to one hour to ensure that the home air is rapidly purified, and then can be adjusted to the low speed gear.
The filter of the air purifier has a long life, especially the filter type air purifier should replace the filter screen in time; if the filter screen is not replaced in time, the filtered air is not clean, causing secondary pollution of the air.
Many people think that there is no need to open the window to ventilate the air purifier at home. In fact, the window ventilation helps to increase the oxygen content in the room. If the window ventilation and purifier are used together, it will be more helpful to establish a good environment in the room.
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When it comes to air pollution, many people pay attention to outdoor environmental pollution, and rarely pay attention to indoor air quality. The World Health Organization lists indoor air pollution as one of the top ten threats to human health. Some experts pointed out that the harm caused by indoor air pollution is even more important, because people spend more than 80% indoors.
△ Nearly half of the world’s people are in indoor air pollution
According to a survey by the US Environmental Protection Agency, the degree of air pollution in many buildings is several times that of outdoor. A World Health Organization data shows that nearly half of the world’s people are exposed to indoor air pollution, resulting in 22% of chronic lung disease and 15% of bronchitis and bronchitis. According to statistics, 24 million deaths worldwide each year are closely related to indoor pm2.5.
△ Indoor pm2.5 intake is 4 times outdoor
Almost all residential buildings and many commercial buildings do not have ventilation systems installed, and the buildings are poorly ventilated, which is an important cause of indoor pollution. In addition, although many decoration materials have no obvious odor, harmful substances such as formaldehyde, benzene and ammonia still exist. The China Indoor Environmental Monitoring Committee found that 72.2% of children’s rooms exceeded the standard by 1 to 8 times.
According to information released by indoor environmental protection agencies, indoor air pollution is mainly caused by indoor pollution caused by indoor decoration pollution, furniture pollution, kitchen fumes and outdoor heavy polluted air. The harmful substances mainly include formaldehyde, benzene, ammonia and Pm2.5 Respirable particulate matter, etc. Women and children are the greater victims of indoor air pollution, and indoor air pollution is associated with a greater degree of death from diseases such as ischemic heart disease, stroke, lung cancer and chronic obstructive pulmonary disease. A survey of 10 departments in the relevant departments found that the incidence of asthma in children has continued to increase over the past 20 years, and the growth of asthma is closely related to indoor pollution.
The office and the bedroom, kitchen and living room in the home are the hardest hit areas for indoor air pollution. In addition to the common culprit of decoration pollution, these places also have different sources of pollution.
Office people are more polluted. Some compounds that are excreted by breathing, sweat, etc., coughing, sneezing, and other biological contaminants are serious. Office appliances can also cause indoor air pollution. Professor Lydia Moravska of the Queensland University of Technology in Australia found that the concentration of fine particles released by the printer is comparable to that of second-hand smoke. It can increase air pollution by a factor of five, causing respiratory diseases and causing heart disease and even heart disease. cancer.
Most of the pollution in the bedroom comes from bedding. The bedroom is mainly made up of dust on the bottom of the bed, carpet and air conditioner. When walking or shaking the quilt, it is easy to lift it into the lungs. Professor Cai Shaozhen, director of the Department of Respiratory Medicine at the Southern Hospital of Southern Medical University, said that the dust mites on the sputum and the dandruff from the body, if inhaled, may cause an allergic reaction.
The China Quality Miles Home Air Pollution Survey report shows that 70% of household pollution originates from the kitchen. A study by the University of Sheffield in the United Kingdom found that when cooking with gas, the amount of nitrogen dioxide in the kitchen was up to three times that of the outside world, and the dust concentration was higher than outside. In addition, the common open flame, the higher temperature, easy to accelerate the release of formaldehyde and other pollutants in the cabinet.
The living room has a wide range of pollutants. Smoke caused by smoking, pollen from flowers, hair from pets, bacteria carried, and dust brought back from outside can cause allergic reactions, respiratory diseases, and even cancer.
Compared with the smog in the outdoor air, the indoor pollution components are more complicated, and the respirable particles are from 0.01 micrometer to 10 micrometers, and contain various carcinogens, allergens and the like. Nowadays, it is widely known that smog hurts the lungs, and masks are usually worn when going out, but indoors, people don’t wear masks and expose themselves to pollution. Harmful gases such as formaldehyde in furniture and decoration materials can induce skin allergies and leukemia; the burning of gas in the kitchen and the pyrolysis of food can cause lung cancer. The Cancer Research Institute of Tongji University in Shanghai found that women who have been exposed to high-temperature soot for a long time have a 2 to 3 times higher risk of lung cancer. In indoor smoking, smoke contains more than 7,000 compounds, including 69 types of carcinogens and 172 harmful substances. Can cause lung cancer, heart disease, bronchitis and asthma.
The indoor space is small and the concentration of harmful substances is relatively high. The Shanghai CDC and Fudan University tests confirmed that the bacteria and molds in most household air conditioners exceeded the standard, even exceeding the central air conditioning of the mall by 50 times. Experiments have shown that smoking a cigarette in a confined space of 35 square meters produces a concentration of pm2.5 that is more than 30 times the normal value. Micro-particles from second-hand smoke account for about 90% of the total indoor pm2.5. As long as you can smell the smoke in the room, pm2.5 has already exceeded the standard by at least double. Professor Cai Shaowei reminded that the tiny particles produced by smoking will remain on clothes, walls, carpets, furniture and even hair and skin. A little activity or air circulation will rise back into the air.
The above-mentioned effects of indoor air pollutants on health are long-term and chronic. In the early stage, dry eyes, lethargy, memory loss, etc. may occur. Long-term exposure may cause sore throat, acute or chronic pharyngitis, allergic asthma, rash and the like. But unfortunately, many people are not aware of it and delay treatment.
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Indoor killer – the secret of indoor air pollution
In the general environment of smog, indoors has become a refuge for many people. Many people generally believe that even if the outdoor environment is heavily polluted, indoors can be a pure land. In fact, this view is completely wrong. In many cases, indoor air pollution is much more serious than outdoor, because indoor air is filled with many invisible ‘killers.’
Three types of pollutants in indoor air
1.Biological pollutant:Small in size but wide in diffusion and fast in speed, it is easy to cause allergic reactions such as sneezing, eye discomfort, cough, and asthma.
Bacteria, virus：The number is large and spreads very quickly, which is easy to cause a variety of diseases.
Fungal spore:It is easy to spread and multiply in the air in humid and warm climates. Long-term exposure can cause allergies and asthma.
Dust, dust mites:Dust is a discomfort for breathing, and it is a hotbed of dust mites and fungi. Dust mites are active small insects that often grow on mattresses, sheets and furniture or are suspended in the air to increase the chance of asthma.
Pollen:Flowers in the outdoors and even in the vases produce pollen, which can cause significant discomfort in the respiratory tract, eyes and skin after inhalation. Pets and human hair and dandruff are very small, easy to enter the human respiratory system, and provide favorable conditions for dust mites and fungi reproduction.
2.Odor
From pets, cooking, garbage and the human body. The odor is unpleasant, affecting the home life and the neighborhood environment.
3.Chemical pollutants
From cigarettes, decoration works, cleaning supplies and furniture, prolonged exposure to skin, nerves and respiratory tract, posing a health hazard.
Secondhand smoke
It has been identified by the US Environmental Protection Agency and the International Agency for Research on Cancer as a human carcinogen of Class A, containing hundreds of toxic substances and carcinogens such as carbon monoxide and formaldehyde, which are particularly harmful to children whose lungs are still developing.
Formaldehyde
Splints, press plates, urea-formaldehyde finished products and flooring from everyday furniture are classified as harmful carcinogens. High concentrations of formaldehyde can irritate the eyes, nose and respiratory system, and in severe cases can cause asthma.
Benzene
Including benzene, toluene, xylene, etc., some of which are identified by the World Health Organization as carcinogens. Mainly from a variety of building materials organic solvents, such as paints, coating additives and wallpaper, carpets, synthetic fibers. Long-term exposure can cause chronic poisoning, neurasthenia and blood system symptoms. In severe cases, aplastic anemia can occur, even leukemia and death.
Radon gas
From soil, rocks and granite. Hernia is colorless, tasteless, and difficult to detect. The products of hernia decay will accumulate in the lungs. It is the second source of lung cancer. Its ranking is second only to smoking. I think many people have already recognized it. Was reshaped.
Since indoor air pollution is so serious, how to solve indoor air pollution? Is there any coup to solve the problem of indoor pollution? Olansi air purifiers come to you.
Gas purifier is a coup to solve indoor pollution
The air purifier can reduce the active oxygen (oxygen free radicals) generated by pollutants, nitrogen oxides, cigarettes, etc. from the atmosphere, and reduce the harmful effects of excessive active oxygen on the human body; the negative ions released can not only promote the synthesis and storage of vitamins in adults, Strengthening and activating the physiological activities of the human body, so it is also called “air vitamin”. It is considered to have a vital effect on the life activities of human body and other organisms, like the vitamins of food. For example, after the thunderstorm, the negative ions of the air increase. People feel comfortable.
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Background and current situation of indoor environmental pollution
The health problems caused by indoor air pollution have become a health threat together with traditional diseases such as high, obesity and high cholesterol. According to a survey of air pollution, nearly 30% will induce respiratory diseases, 20% will produce different types of chronic diseases, some will have tracheal and bronchial verification, and severe will be replaced with cancer. The problem of indoor air pollution can not be underestimated.
Indoor environmental pollution is serious
In recent years, China has successively formulated a series of standards for indoor environment, from the use of building decoration materials to the limitation of pollutant content in indoor air, to strictly monitor the indoor environment to ensure the health of the people. Therefore, people often think that the living conditions of modernization are constantly improving, and indoor environmental pollution has been controlled. In fact, people’s harm to indoor environmental pollution is far from enough.
It should be noted that at the same time of rapid economic development, indoor environmental pollution caused by construction, decoration and furniture has become a major killer affecting people’s health. According to the data provided by the China Indoor Environmental Monitoring Center, the annual number of deaths caused by indoor air pollution can reach 111,000, the number of over-examinations can reach 220,000, and the number of over-exposures can reach 4.3 million. Severe indoor environmental pollution not only caused people’s health losses, but also caused huge economic losses. In 1995, the economic losses caused by indoor environmental pollution in China were as high as 10.7 billion US dollars.
From the current analysis and analysis, the main sources of indoor air pollutants are as follows: construction and interior decoration materials, outdoor pollutants, combustion products and human activities. The pollution of interior decoration materials and furniture is currently the main aspect of indoor air pollution. The National Health, Construction and Environmental Protection Department conducted a spot check on interior decoration materials and found that 68% of the materials with toxic gas pollution, these decorative materials will evaporate more than 300 volatile organic compounds. Among them, formaldehyde, ammonia, benzene, toluene, xylene, volatile organic compounds and radioactive gases, etc., can cause headache, nausea, vomiting, convulsions, difficulty breathing, etc. after repeated exposure. Repeated exposure can cause allergic reactions such as asthma and allergies. Prolonged exposure to rhinitis and dermatitis can lead to cancer (lung cancer, leukemia or abortion, fetal malformation and growth retardation).
Experts have found that the use of materials containing harmful substances in the home decoration will increase the degree of indoor pollution, which has a greater impact on children and women. Relevant statistics show that there are about 2.1 million children who die from upper respiratory tract infections each year in China, and the deaths of more than 1 million children are directly or indirectly related to indoor air pollution, especially some newly built and newly renovated kindergartens and home indoor environments. The pollution is very serious.
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Since the 20th century, the material and cultural living standards of the people have been greatly improved with the acceleration of economic development, and the quality of life and health have become a major concern. According to some surveys, modern people spend an average of 80% – 90% of their time indoors, especially old, weak, sick, disabled, young, pregnant, etc., which are longer in indoor activities. The quality of indoor air is directly related to the human body. health. However, a large number of survey data at home and abroad have confirmed such a disturbing fact: the indoor air pollution level is 5-10 times higher than the outdoor, the indoor pollutant concentration is 2-5 times higher than the outdoor, and the indoor air pollution is more than the air pollution. To be serious, domestic and foreign experts have proved that following the ‘smoke type’ and ‘photochemical smog type’ pollution, modern people are entering the third pollution period marked by ‘indoor air pollution’. At present, the number of excess deaths caused by indoor air pollution in China has reached 1.11 million, and the number of emergency evacuations has reached 4.3 million. The number of people worldwide who die each year is 2.8 million. In recent years, indoor air pollution has received widespread attention.
Causes and characteristics of indoor air pollution
Due to indoor introduction of pollution sources that release harmful substances or indoor environment poor wind, causing harmful substances in indoor air, regardless of quantity or type increased and caused a series of discomfort symptoms, indicating that the indoor air has been contaminated dye. As far as the impact of environmental pollution on human health is concerned, people live and work long time in indoor environment, poor indoor ventilation, not conducive to thinning of pollutants interpretation, self-purification, etc., indoor environmental quality is more than outdoor environmental quality important.
Indoor air pollution and air pollution are different due to their environment features are also different. Indoor air pollution has the following characteristics:
1.Cumulative
The indoor environment is a relatively closed space, and one of the characteristics of its pollution formation is cumulative. From the entry of pollutants into the room, the concentration increases, and the concentration is discharged to the outside.Gradually zero, most of them take a long time. Various items in the room, including building decoration materials, furniture, carpets, etc. may release certain chemicals.They will gradually accumulate indoors, causing the concentration of pollutants to increase, forming a body hazard.
According to scientific evidence, a person’s daily inhalation of air is about 20kg, which is equivalent to 10 times the amount of food ingested a day, which is equivalent to 52 times the weight of a normal indoor air of 100 square meters. That is, indoor air is circulated 52 times in the human body during the day, so indoor air pollution forms a cumulative effect in the human body.
2.Long-term
The indoor environment is the most frequent and intimate environment for people to contact. More than 80% of people spend their time indoors, even if the concentration of very low pollutants, after long-term effects on the human body,also affects human health.
3.Diversity
Indoor air pollutants have biological pollutants, such as bacteria; chemical pollutionmatter, such as formaldehyde, ammonia, benzene, carbon monoxide, carbon dioxide, nitrogen oxides, dioxide，sulfur, etc.; there are also radioactive pollutants, helium and its daughters.
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The World Health Report 2002 published by the World Health Organization lists indoor environmental pollution as high blood pressure, hypercholesterolemia and obesity as the top ten killers of human health. At the same time, the performance of 12 kinds of room pollution was listed.
I feel depressed, sick, and even dizzy when I wake up every morning;
Family members are often prone to catch a cold;
Do not smoke, and rarely touch the smoking environment, but often feel uncomfortable, have foreign bodies, and have poor breathing;
Children often cough, sneeze, and their immunity decline. Children in newly renovated houses are reluctant to go back;
The family often has skin allergies and other problems, and is mass-generating;
The family has a disease, and after leaving the environment, the symptoms change and improve;
Newlyweds are infertile for a long time and cannot find the cause;
Pregnant women find fetal malformations under normal conditions;
After the new move or new decoration, the indoor plants are not easy to live, the leaves are prone to yellowing and withering, especially some plants with strong vitality are difficult to grow normally.
Domestic pet cats, dogs, and even tropical fish die inexplicably, and neighbors do the same;
Newly renovated homes or newly bought homes have pungent, pungent and other irritating odors, and they still smell for more than a year;
I feel sore throat when I go to work, my respiratory tract is dry, I feel dizzy for a long time, I feel tired, I have no problem after work, and other staff members in the same building also have this feeling;
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The pollution caused by indoor air mainly comes from the following five aspects
First, the human body breathing, smoke;
Second, decoration materials, daily necessities;
Third, microorganisms, viruses, bacteria;
Fourth, kitchen fumes;
Fifth, air conditioning syndrome.
These pollutants enter the human body with breathing and accumulate for a long time, which seriously endangers people’s health.
Human breathing, smoke
The research results show that the human body will produce about 500 kinds of chemical substances in the metabolism process, and 149 kinds of pollutants discharged through the respiratory tract, the pathogens emitted by the human body and a variety of odors, among which a variety of toxic components are mixed, and must not be ignored. There are as many as 171 kinds of body waste discharged by the human body through the sweat glands of the skin, such as urea and ammonia. In addition, the cells of the human skin are about 90% of the air dust. If the concentration is too high, it will form indoor biological pollution, affect human health, and even induce a variety of diseases.
Smoking is one of the main sources of indoor air pollution. The composition of the smoke is complex, with solid and gas phases. Approved by the International Cancer Institute expert group and through animal carcinogenic experiments, there are more than 40 ‘carcinogens’ in tobacco smoke. Smoking can significantly increase the incidence of cardiovascular disease and is the ‘number one killer’ of human health.
Decoration materials, daily necessities
Interior decoration using a variety of paints, paints, wall coverings, adhesives, artificial boards, marble floors and newly purchased furniture, etc., will emit phenol, formaldehyde, asbestos dust, radioactive materials, etc., which can cause headaches, insomnia, dermatitis and Allergies and other reactions reduce the body’s immune function, so the International Cancer Institute lists it as a suspected carcinogen.
Microbes, viruses, bacteria
Indoor air pollution 21% caused by microorganisms. Microorganisms and fine dust are often found in warm, humid and unclean environments. They are dispersed in the air along with dust particles, becoming a source of allergens and disease transmission. Dust mites, in particular, are an allergen to human bronchial asthma. Dust mites like to live in the dust of the room, the spring and autumn are the most vigorous period of dust mites growth and reproduction.
Kitchen fume
In the past, the pollution of indoor air by kitchen fumes was rarely taken seriously. According to research, the number of lung cancer patients in urban women has increased. Most patients diagnosed with adenocarcinoma by hospital are a case of lung cancer that has little connection with smoking. Further investigations have found that the carcinogenic pathway is associated with the mutagenicity of kitchen fumes and the oxidative decomposition of high-temperature edible oils. Another major source of pollution in the kitchen is the burning of fuel. In the case of poor ventilation, the concentration of carbon monoxide and nitrogen oxides produced by the burning appliance far exceeds the limits set by the air quality standard, and such concentration will inevitably cause harm to the human body.
Air conditioning syndrome
People who work in an air-conditioned environment for a long time often feel bored, fatigued, lethargic, muscle pain, have a high incidence of colds, and have a marked decline in work efficiency and health. These symptoms are collectively referred to as “air conditioning syndrome.” The main cause of these adverse reactions is that it stays in a confined space for too long, and the accumulation of CO2, CO, respirable particulate matter, volatile organic compounds, and some pathogenic microorganisms increases the pollution. The above various reasons have caused poor indoor air quality, causing many diseases, which in turn affects work efficiency.
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People have always thought that air pollution is serious outdoors. In fact, the indoor environment of offices, rooms, restaurants, theaters, dance halls and other buildings has a much greater impact on people’s health than outdoor. About 80% of a person’s life is spent indoors. Therefore, the quality of indoor environment directly affects human health. From the reality, the indoor air quality is far worse than the outdoor atmospheric environment.
Environmental workers remind people that indoor air pollution is often five times more severe than outdoor air pollution, and in some cases, even more than 100 times. About 300 kinds of pollutants can be detected indoors, and 68% of human diseases are related to indoor air pollution. With the improvement of living standards, people pay more and more attention to the beautification of the home environment, but it also inevitably brings indoor environmental pollution.
Indoor air pollution directly threatens people’s health. The number of deaths caused by indoor pollution is as high as 111,000 per year, the number of over-examinations is 220,000, and the number of emergency vacancies is 4.3 million. The incidence of diseases such as leukemia, respiratory diseases, blood diseases, fetal death, deformed children, and skin diseases due to environmental quality has increased by an average of more than 2% over the previous year. Due to the deterioration of the indoor environment, the incidence of lung cancer is increasing at an alarming rate of 26.9% per year. The World Health Organization has announced that pneumonia and other acute lower respiratory tract infections are the single most important cause of death among children under five years of age. Exposure to indoor air pollution increases the risk of pneumonia by more than a factor of more than 900,000 deaths per year from 2 million deaths caused by pneumonia. Even more worrisome is that children are more vulnerable to indoor air pollution than adults. A survey from Beijing Children’s Hospital showed that 90% of children with leukemia admitted to the hospital had been renovated within six months. Experts speculate that harmful substances in interior decoration materials may be an important cause of pediatric leukemia.
According to investigations by the World Health Organization and relevant Chinese departments, due to the widespread use of sealed structures in modern buildings, indoor air pollution caused by improper use of decorative materials has caused serious problems in building diseases. In some areas, the detection results of formaldehyde, benzene, TVOC and other harmful substances in the indoor environment have reached 7.7% of the total required by the State’s ‘Code for the Control of Indoor Air Pollution in Civil Buildings’. The huge harm caused by decoration pollution has caused the government. Relevant departments, health organizations, and relevant experts attach great importance to it.
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Talking about the harm of indoor air pollution to human health
With the rapid economic growth, the problem of environmental pollution is inevitable. Of course, the two are not contradictory. However, as far as the current situation is concerned, both developed countries and developing countries generally face different levels of environment. pollution problem. In recent years, the word haze has been very hot. However, smog is not a new concept, but the attention of everyone before is not high enough, and nowadays, the reference to air pollution is afraid of avoiding the word. However, the air pollution we mentioned here mainly refers to outdoor air pollution. In fact, the pollution problem in the indoor environment of today’s society is also quite serious, because most modern people spend most of their time indoors, while indoors There is no doubt that the quality of the air will directly affect our health.
First,status of indoor air pollution
The so-called indoor air pollution is literally the air pollution in the living environment. Before the 1980s, indoor air pollutants were mainly carbon monoxide, sulfur dioxide and nitrogen oxides produced by coal combustion. In the early 1990s, air pollutants from indoor smoking, coal burning and cooking were mainly used. Since the late 1990s, with the people The improvement of living standards, coupled with the rise of “renovation heat”, the pollutants generated by decoration materials have become the main source of indoor air pollutants. The popularity of air conditioners has made the composition of indoor air more complicated, and the threat to people’s health has become more and more serious. Big.
Nowadays, many cities have carried out investigations in this area, and the results of the survey are not optimistic. According to statistics, indoor air pollutants such as benzene, toluene, ammonia and hydrazine exceeded the standard by several times, and the content of pollutants in new homes was particularly high. It has been confirmed that this is mainly caused by poor decoration.
Second, the characteristics of indoor air pollution
Indoor air pollution is different from outdoor, mainly reflected in the following aspects:
Long contact time. More than half of people spend their time indoors, so even if the concentration of pollutants is very low, after years of enrichment in the human body, it will cause greater harm to the human body;
Affect the population. Unlike the outdoor environment, indoor air pollution involves almost all age groups, because everyone is inevitably exposed to the indoor environment;
High concentration of pollutants. The indoor space is relatively closed compared to the outdoor, which causes the air to circulate, and the pollutants accumulate in the air, so that it is easier to reach a higher concentration;
There are many types of pollutants and complex components. Indoor pollutants are different from specific outdoor locations with certain pollutants. Indoor air pollutants are complex and diverse. This is mainly due to the large number of indoor activities, especially in public places, with a large number of people and complicated personnel. With the development of new technologies, many pollutants have not been widely recognized.
The duration of the pollutants is long. Many people think that new furniture may release pollutants such as formaldehyde, but this problem does not exist after one and a half years. In fact, this is not the case. Although the harmful effects of volatile pollutants are not long, there are also several years. For a long time, other air pollutants, like radioactive elements, may last longer.
Third, prevention and solutions
The most fundamental way to reduce indoor pollution is to reduce or control the generation of pollutants from the source of pollution. The first question is about the decoration. Before the decoration, the type and amount of the plate should be fully considered. Use the decoration materials that meet the national standards, use the synthetic materials as little as possible, and do not over-renovate, because even if the decoration materials used meet the standards, they are used. Too much will still lead to enrichment of pollutants and exceed the standard. The second is the problem of pollutants in the soot. In the cooking process, it is inevitable that oily fumes will be produced. At high temperatures, the substances in the food undergo complex chemical reactions, which in turn produce a variety of carcinogenic substances. First, we should use qualified cooking oil and ingredients, do not buy inferior edible oil; second, try to avoid cooking under high temperature conditions such as stir-frying and frying during cooking; third, use good exhaust The range hood, so that even the generation of soot containing certain pollutants can minimize its indoor diffusion and reduce the harm to indoor personnel. In addition, it is about smoking. It is well known that the harm of second-hand smoke is extremely serious. It has been confirmed that smoking is one of the causes of lung cancer. The indoor environment is a closed environment. The harm of second-hand smoke is more prominent indoors. It will affect your health and will seriously affect the health of people around you. Therefore, we should try to reduce smoking or quitting smoking. I believe this will be a far-reaching thing.
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