With the development of science and technology and the improvement of living standards, people are exposed to more and more chemical products and other substances in their daily lives.
In addition, the indoor containment of modern houses is relatively low compared to the permeability of traditional houses, which also leads to the easy accumulation of harmful substances indoors, and some substances are even carcinogenic, which is worthy of attention and prevention. Let's list the common carcinogens in the room.
Carcinogens are common in the kitchen
The primary carcinogen is the oil smoke produced by cooking. The fumes produced during the process of preparing meat foods at high temperatures (such as frying, frying, roasting, burning, etc.) contain compounds such as polycyclic aromatic hydrocarbons, heterocyclic aromatic amines and polychlorinated biphenyls, which can enter the human body through the respiratory tract and have the effect of damaging DNA, thereby increasing the risk of lung cancer, bladder cancer and kidney cancer. For safety reasons, the following heating methods are recommended, including boiling, steaming and stewing for meat preparation.
This is followed by aflatoxin produced by food spoilage. Hot and humid weather often causes moldy growth of fungi such as aflatoxins such as corn, rice, peanuts, cottonseeds and nuts, which in turn produce aflatoxins, which are then ingested with food. Aflatoxin is stable and not easily degradable.
Aflatoxin mainly damages the organs of the liver, acute injury often occurs hepatic necrosis (mostly in children, adults have a certain tolerance), chronic damage is cirrhosis and liver cancer. There is currently a lack of radical elimination of aflatoxin, and it is advisable to avoid foods that are stored for a long time or are obviously moldy in the diet.
The third is nitrosamines. In 2015, the International Agency for Research on Cancer found that lean meat produces large amounts of nitrates and nitrites during processing, which convert to nitrosamines in the gastrointestinal tract, thereby increasing the risk of colon or stomach cancer, and nitrosamines are also classified as Class 2A carcinogens. In response to this condition, the general recommendation is to reduce the intake of processed meat to reduce the risk.
Carcinogens are common in the bathroom
The first is formaldehyde. Formaldehyde is a colorless and irritating gas, the most common source indoors is the release of newly renovated houses or new furniture, and another important daily source is some toiletries, such as nail polish, shampoo, conditioner, baby lotion, shower gel, facial cleanser and eyeshadow.
These usually contain preservatives, and the commonly used compounds of preservatives, bromininitronol, imidazolinylurea, etc., can release a certain amount of formaldehyde, which are listed as human carcinogens.
This is followed by phthalates and parabens. Many baby care products such as lotions, shampoos, lotions and fragrance powders contain phthalates, while many adult cosmetics, facial cleansers, shower gels, deodorants and shampoos use parabens as preservatives.
Such substances have potential estrogen activity, have the effect of causing endocrine dysfunction, can induce girls with prepuberty and developmental defects, and increase the risk of breast cancer in adult women.
Carcinogens in bedrooms, study rooms or living rooms
The first is smoking. The number of smokers in China is about 350 million, and in the case of smoking bans in public places, indoor smoking in the family has become an important way. Smoking is not only harmful to oneself (active smoking), but also has great damage to the people around it (passive smoking), and more seriously, some substances stay indoors and cause long-term harm.
The smoking process produces thousands of chemicals, of which more than 70 are clearly carcinogenic, such as nicotine, formaldehyde, polycyclic aromatic hydrocarbons, lead and arsenic. Smoking is the number one cause of lung cancer, in addition to damaging the heart, lung function and other serious health problems. Therefore, for the sake of health, it is crucial to stay away from tobacco.
This is followed by radon. Radon is a colorless, odorless, radioactive gas that is found in and released into space in substances such as soil, rocks, and building materials.
Radon as a radioactive substance has been clearly defined as a class 1 carcinogen, the harm under natural conditions is not large, but the risk of two situations is higher, one is a relatively confined space, radon can not be effectively released, the other is the use of radon-rich materials (such as some granite), resulting in excessive release, and eventually exceed the normal standard and the harm occurs.
Radon may also increase the risk of leukemia in children. It should be noted that the risk of lung cancer increases sharply in the presence of both smoking and radon exceedance, and radon is usually exceeded in tobacco.
In short, we live around without risk, but there is no need to worry too much, and cancer is not caused by a single factor. Familiarity with the existence of these harmful substances is aimed at minimizing exposure (which is difficult to avoid altogether) and thus achieving the purpose of good health.