1. Air pollution: The main component of air pollution released from daily life:

Carbon dioxide (CO2) mainly comes from the combustion of coal, oil and natural gas. The biggest emitters are coal-fired power plants, cars and other means of transportation. ?

chlorofluorocarbons (CFCS) mainly come from air-conditioning and refrigeration equipment using freon, CFC sprays (such as mousse), methyl chloroform or carbon tetrachloride dry cleaning agents, etc.

carbon monoxide (CO) mainly comes from automobile exhaust, coal burning and garbage burning in the open air.

nitrogen oxides (NOX, including NO, NO2 and NO3) mainly come from automobile exhaust and coal-fired power plants.

sulfur dioxide (SO2) mainly comes from coal-fired power plants and civil coal burning. Coal ash, soot and lampblack mainly come from catering stalls with coal stoves on the roadside, kebabs, and cooking in a choking pot.

the dust mainly comes from cleaning the road surface and the dust raised from the ground when motor vehicles are driving.

lead particles mainly come from automobile exhaust using leaded gasoline.

ozone (O3? , also known as photochemical oxidant) mainly comes from the reaction of nitrogen oxides released by cars with oxygen under sunlight.

hydrocarbons mainly come from automobile exhaust, oil tank leakage and gasoline volatilization.

second, water pollution: the sources of main substances that cause water pollution in daily life:

pathogens (germs and viruses) come from feces, sewage from slaughtering chickens, fish, ducks and meat, etc.

Dead organisms come from domestic sewage and domestic garbage.

Organic and inorganic chemicals come from chemical cleaners in bathrooms and toilets, solvents for interior decoration, pesticides, polishes for cleaning floors, windows and furniture and other drugs.

Phosphorus comes from phosphorus-containing washing powder and detergent.

Petrochemical detergents come from petrochemical synthetic dishwashing detergent which is widely used in families and restaurants.

Heavy metals (mercury, lead, cadmium, chromium, arsenic, etc.) come from decoration wastes, batteries, paints, pigments, rodenticides, electronic products and cosmetics in domestic garbage.

3. Pollution of domestic garbage: The main pollutants in modern domestic garbage are:

1. Plastic comes from plastic bags widely used in shopping malls and markets, plastic packaging of commodities, disposable polystyrene fast food lunch boxes, plastic tableware and cups and plates, foamed stuffing for electrical packaging, plastic bottles, cold drink skins, disposable plastic tablecloths used in restaurants and so on. Plastic waste is difficult to decompose, and its degradation time takes one to two hundred years.

Its long-term accumulation provides breeding places for rats, mosquitoes and flies, which not only threatens human health, but also affects the appearance of the city. Incineration of plastic waste will release a variety of harmful chemicals. Among them, dioxins are extremely toxic to animals. Even in a small amount, dioxins can make birds and fish deformed and die. The harm of dioxins to human body is manifested as emaciation, liver dysfunction, nerve damage, cancer and so on.

2. Batteries

Batteries include button batteries, ordinary zinc-manganese batteries, rechargeable batteries, ordinary alkaline batteries and automotive lead batteries. Button batteries, ordinary zinc-manganese dry batteries and alkaline batteries contain mercury. When it is abandoned in nature, mercury will slowly overflow from the battery, enter the soil or water source, and then enter the human body through crops, damaging people's kidneys. In addition, the leakage of acid and heavy metal lead from waste automobile batteries into nature can cause soil and water pollution.

3. Leftover meals

Leftover meals mainly come from the catering industry, migrants who eat box lunch and office workers. The nutrition provided by leftovers also promotes the proliferation of bacteria in garbage, producing ammonia and hydrogen sulfide gas that are toxic to people and animals, and also promotes the production of biogas in garbage, burying the hidden danger of garbage explosion.

4. Paint, adhesive and pigment

come from the waste after building and home decoration. Paint and adhesive wastes containing organic solvents are dangerous and toxic. Because of its high volatility, it is easily inhaled by the human body. Can cause headaches, allergies and even coma, or cause cancer. More commonly, it will harm people's nerves, digestion, blood circulation and urinary system.

5. Waste paper sheets, cans and glass bottles come from offices, schools, office buildings, shopping malls, cold drinks shops and families.

6. Medical wastes

In addition to inorganic wastes, medical wastes generated in hospitals include disposable infusion sets, syringes, surgical instruments, human tissues, and gauze and absorbent cotton for treatment. These wastes contain a large number of harmful substances such as pathogenic microorganisms and parasites, which are easy to rot and mold, breed mosquitoes and flies, and cause the spread of diseases. There may also be infectious germs, viruses, chemical pollutants and radioactive substances, which are extremely dangerous and are regarded as "top dangers" and "fatal killers".

The extended data are divided into

air pollution, water pollution, soil pollution, noise pollution, pesticide pollution, radiation pollution and heat pollution according to environmental factors.

according to the attribute, there are

dominant pollution and

recessive pollution.

According to human activities, there are

industrial environmental pollution, urban environmental pollution and agricultural environmental pollution.

According to the nature and source of environmental pollution, it can be divided into

chemical pollution, biological pollution, physical contamination (noise pollution, radioactive pollution, electromagnetic wave pollution, etc.) solid waste pollution, liquid waste pollution and energy pollution.

Land pollution: Garbage cleaning has become an important problem in major cities. Many of the tens of millions of tons of garbage every day cannot be incinerated or decomposed, such as plastics, rubber, glass and other human enemies.

marine pollution: mainly crude oil leaked from oil tankers and oil wells, pesticides and fertilizers used in farmland, sewage discharged from factories, and acidic solutions from mines; They pollute most marine lakes. As a result, not only marine organisms are harmed, but also birds and humans may be poisoned by eating these organisms.

air pollution:: refers to the concentration of pollutants in the air reaching or exceeding the harmful level, leading to the destruction of the ecosystem and the normal survival and development of human beings, and causing harm to people and creatures. This is the most direct and serious, mainly from carbon monoxide and hydrogen sulfide released by factories, automobiles, power plants, etc. Every day, people get diseases of respiratory organs or visual organs due to contact with these dirty air.

water pollution: refers to the phenomenon that the chemical, physical, biological or radioactive pollution characteristics of water bodies are changed due to the intervention of certain substances, thus affecting the effective utilization of water, endangering human health or destroying the ecological environment, resulting in the deterioration of water quality.

Noise pollution refers to the phenomenon that the generated environmental noise exceeds the national environmental noise emission standard and interferes with the normal work, study and life of others.

Radiation pollution refers to the appearance of radioactive substances or rays exceeding the national standards on the surface or inside of materials, people, places and environmental media due to human activities.

Reference: Baidu Encyclopedia-Environmental Pollution