(1) Kitchen pollution: suspended particles, sulfur dioxide, carbon monoxide, nitrogen oxides, hydrocarbons, etc. produced by burning coal and gas in the kitchen are all extremely harmful gases to human body. In addition, when cooking or frying food, acrolein, a colorless and harmful gas, can also make people cry, have difficulty breathing and raise blood pressure.
(2) Bedroom pollution: After people get up in the morning, the indoor floating dust concentration is 2-5 times higher than that outside. These floating dust mainly come from people's wearing, undressing, bedding and skin shedding. It can invade human body through respiratory tract, or deposit in alveoli, or be absorbed into blood and lymph, causing potential harm to human body.
(3) Indoor pollution
Formaldehyde is released from furniture panels or plywood, carpets and walls. Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases, nasopharyngeal carcinoma, colon cancer, brain tumor, menstrual disorder, gene mutation in the nucleus, DNA single-strand cross-linking and DNA-protein cross-linking, inhibition of DNA damage repair, pregnancy syndrome, chromosomal abnormalities in newborns, leukemia, and memory and intelligence decline in adolescents. Among all the contacts, children and pregnant women are particularly sensitive to formaldehyde, which is more harmful. Formaldehyde is a highly toxic substance, ranking second in the priority control list of toxic chemicals in China. Formaldehyde has been identified as a carcinogen and teratogenic substance by the World Health Organization. It is considered as an allergen and one of the potential strong mutagens. Studies have shown that formaldehyde has a strong carcinogenic and cancer-promoting effect. The effects of formaldehyde on human health are mainly manifested in abnormal sense of smell, irritation, allergy, abnormal lung function, abnormal liver function and abnormal immune function. When its concentration reaches 0.06-0.07 mg/m3 per m3 of air, children will have mild asthma. When the formaldehyde content in indoor air is 0. 1mg/m3, it will have peculiar smell and make people uncomfortable. When it reaches 0.5mg/m3, it can irritate eyes and cause tears; Up to 0.6 mg/m3, which may cause throat discomfort or pain. When the concentration is high, it can cause nausea and vomiting, cough and chest tightness, asthma and even pulmonary edema; When it reaches 30mg/m3, it will kill people immediately.
(4) Noise pollution: televisions, tape recorders, etc. It's playing too loudly. Scientific measurement shows that when the noise often reaches above 80 decibels, people will have symptoms such as headache, dizziness, memory loss, tinnitus and deafness.
(5) Cosmetic pollution: Some so-called high-grade cosmetics containing tremella, ginseng and protein are precisely the "culture medium" for the growth and reproduction of various bacteria. Once used after deterioration, the consequences will be unimaginable. Some people use talcum powder and vanishing cream contaminated by bacteria, resulting in neonatal tetanus and bacteremia. Secondly, the cold perm solution of hairdressing products is a potential pollutant. If it is used excessively, it will cause skin burns, and if it accidentally spills into eyes, it will also cause chemical burns. In addition, a considerable number of cosmetics contain a small amount of lead, which will lead to lead poisoning after long-term use.
(6) Smoking pollution: If one person smokes, the whole family will suffer. The data shows that women who "smoke passively" are more likely to die of heart disease than women who don't smoke. Accidents caused by environmental pollution are also eroding our lives.
With the improvement of people's living standards, people have a more scientific understanding of their own quality of life and living environment. Environmental awareness is also increasing. The environment is closely related to us, and we can't live without it. Pollution is all around us, in your office, home environment and outdoor environment.
(7) Automobile exhaust pollution
Automobile exhaust mainly refers to the exhaust gas discharged from the exhaust pipe. Waste gas contains 150 ~ 200 different compounds, among which carbon monoxide, hydrocarbons, nitrogen oxides, lead compounds and particulate matter are the most harmful to people. Harmful gases diffuse into the air, causing air pollution. The particulate matter in automobile exhaust contains a strong carcinogen benzo (a) pyrene. Under normal circumstances, 1 g particulate matter contains about 70 micrograms of benzo (a) pyrene, and every 1 kg gasoline can produce 30 milligrams of benzo (a) pyrene. When the concentration of benzo (a) pyrene in the air reaches 0.0 1.2 μ g/m3, the number of people suffering from lung cancer will increase obviously. Automobile exhaust is not only harmful to people, but also toxic to plants. Secondary pollutants in waste gas, such as ozone and ethyl peroxynitrate, will cause necrotic spots and withered spots on plant leaves. Ethylene will affect the flowering and fruiting of plants. Automobile exhaust is more harmful to beets, spinach, tomatoes and tobacco. The reduction of crop production on both sides of the highway is obviously related to automobile exhaust pollution.
Besides, there are many toxic substances in our life. For example, most of the polycyclic aromatic hydrocarbons contained in food come from soil, water and air pollutants, while the polycyclic aromatic hydrocarbons contained in smoked food are mainly produced in the process of processing food. The "mutton skewers" found in the streets and alleys of the city were sampled and tested by the relevant departments, and it was found that the benzopyrene content per kilogram of mutton skewers greatly exceeded the food standards stipulated by the International Health Organization. Benzopyrene is an indicator of polycyclic aromatic hydrocarbons in environmental samples. Polycyclic aromatic hydrocarbons (PAHs) are typical carcinogens, and the main ways to enter the human body are cigarette smoke and food diet.
In addition to the above toxic substances, there are many pollutants harmful to human body or environment. In daily life, as long as everyone can improve their understanding of this aspect, enhance their awareness of self-protection and deepen their concept of protecting the environment. Our environment will be more and more fresh and beautiful.
For the garbage and waste in life, first, it should be emptied in time, and second, it should be properly packed in plastic bags or old newspapers to avoid polluting the air and attracting flies, cockroaches and mice.