What causes poor air quality and what can we do to improve it?

<> affect air quality.

The reasons are mainly natural factors and human factors. The former is caused by nature itself, such as volcanic eruptions.

forest fires, etc.; The latter is based on industrial waste gases, transportation, combustion of domestic stoves, and dust from the groundFor example, the reason for purchasing materials will emit a certain odor, including formaldehyde, benzene, TVOC and other harmful gases will have a certain impact on the room! <>

Air quality grade: It is the grade of air quality, which is divided according to the size of the pollution index.

Air Pollution Index.

The concentrations of several air pollutants monitored are reduced to a single numerical form, and graded to represent the degree of air pollution and air quality status.

Improvements:

1: Afforestation: photosynthesis of trees.

It can make oxygen and absorb carbon dioxide.

The transpiration of trees can increase the humidity of the air.

It can provide oxygen for human beings, purify the air, beautify the environment, and contribute to the protection of the ecological environment. This results in improved air quality.

2: Strengthen the level of urban greening. Includes street trees.

of planting. The construction of the garden. Green belt construction. Community greening and so on. Through greening and planting trees, planting flowers and grasses, improving the soil, improving water quality, ensuring fresh air, and creating good environmental conditions, so as to improve the physical fitness of all people.

Layered green spaces of trees, shrubs, flowers, and turf, embedded in the city, factory complexes, will greatly improve air quality.

3: Reduce the circulation of cars. Odd and even number time-sharing traffic for a week (it may be a bit difficult, but Beijing has been put into trial operation in the front-end period, and the effect is remarkable): do more energy saving and emission reduction of vehicles.

4: Promote and popularize green energy use.

Reducing Pollution Emissions Reforming the energy structure, using more non-polluting energy sources (such as solar energy, wind energy, hydropower) solar energy and low-polluting energy sources (such as natural gas), pretreating fuels (such as desulfurization before burning coal), and improving combustion technology can reduce emissions.

5: Strictly supervise and manage the enterprises with serious pollution around the city (such as chemical plants, printing plants, paper mills, cement plants, etc.): increase the management of pollution sources that affect the quality of the urban atmospheric environment to ensure that they are stably discharged.

6: Road sprinkling: The road sprinkler truck will clean it after sprinkling, which will not raise a lot of dust and cause secondary pollution. Cleaning, hygiene, dustproof, etc., to achieve the effect of beautifying the environment, so that the air quality can be greatly improved.

7: Rational layout of industry and environmental planning; Changing the energy structure, promoting clean fuels, using cleaner production processes, and reducing pollutant emissions; Strengthen energy conservation, improve energy utilization, district heating and heating; Strengthen environmental supervision and management and the treatment of old pollution sources, implement total volume control and discharge up to standards; Solve the problems of soot pollution, dust pollution and pollution.

8: Take air quality as a leading assessment index.

Breathe together, struggle together!

"Clean air" needs to be achieved by each and every one of us!

Poor air quality is mainly due to industrial pollution, traffic exhaust emissions, harmful gases produced by combustion, etc.; On the other hand, it is also related to some natural disasters. We will reduce the emission of harmful gases, establish strict rules to reduce factories, and increase the number of trees, and strengthen the protection of the environment.

It is caused by factory and vehicle exhaust emissions. We should plant more trees and use high-tech technology to reduce pollution.

The air quality is not good because we have too many chemical tools in modern times, too many cars, which produce a lot of exhaust gases, as well as the production and manufacturing of air conditioners and chemical plants, as well as people littering at will, destroying the environment.

Car pollution. Because car pollution is very serious to the atmosphere, and some manufacturers have a very huge impact on the atmosphere, so we should plant more trees.

The main ones are the emissions of automobile exhaust and industrial exhaust gases. We should try to go as green as possible and close some factories that are extremely polluting to the environment.

<> affect air quality.

One of the most important factors affecting air quality is the amount of anthropogenic pollutant emissions from stationary and mobile pollution sources, including exhaust from vehicles, ships, and aircraft, industrial pollution, residential life and heating, and garbage incineration. The development density of the city, the topography and landform.

and meteorology are also important factors affecting air quality.

Aerodynamics in ambient air.

Particulate matter with an equivalent diameter of less than or equal to microns. It can be suspended in the air for a long time, and the higher its concentration in the air, the more serious the air pollution. Although it is only a very small component of the Earth's atmospheric composition, it has a significant impact on air quality and visibility.

and so on.

Suggestions for improving air quality include reducing pollutant emissions, strictly controlling new production capacity in high-energy-consuming and high-polluting industries, vigorously promoting cleaner production, accelerating the adjustment of the energy structure, strengthening the constraints of energy conservation and environmental protection indicators, implementing a new mechanism for energy conservation and emission reduction with both incentives and constraints, improving laws, and paying attention to prevention and control.

1. Reduce pollutant emissions.

Comprehensively renovate coal-fired small boilers, and accelerate the transformation of desulfurization, denitrification and dust removal in key industries. Remediation of urban dust. Improve fuel quality and eliminate yellow label vehicles within a time limit.

2. Strictly control the new production capacity of high-energy-consuming and high-polluting industries.

Strictly control the new production capacity of high-energy-consuming and high-polluting industries, and complete the task of eliminating backward production capacity in key industries such as steel, cement, electrolytic aluminum, and flat glass in the 12th Five-Year Plan one year ahead of schedule.

3. Vigorously promote cleaner production.

Cleaner production will be vigorously promoted, and the emission intensity of major air pollutants in key industries will be reduced by more than 30% by the end of 2017. Vigorously develop public transportation.

4. Accelerate the adjustment of the energy structure.

Accelerate the adjustment of the energy structure, and increase clean energy such as natural gas and coal-to-methane.

5. Strengthen the constraints of energy conservation and environmental protection indicators.

Strengthen the constraints of energy conservation and environmental protection indicators, and for projects that have not passed the energy assessment and environmental impact assessment, they shall not be approved to start construction, shall not provide land, shall not provide loan support, and shall not supply electricity and water.

6. Implement a new mechanism for energy conservation and emission reduction with both incentives and constraints.

Implement a new mechanism for energy conservation and emission reduction that combines incentives and constraints, and increase the collection of sewage charges. Increase credit support for air pollution prevention and control. Strengthen international cooperation and vigorously cultivate environmental protection and new energy industries.

7. Improve the law.

Use laws and standards to force industrial transformation and upgrading. Formulate and revise emission standards for key industries, and propose amendments to the Air Pollution Prevention and Control Law and other laws. Mandatory disclosure of environmental information of enterprises in heavily polluting industries. Publish air quality rankings of key cities. Increase the severity of penalties for illegal acts.

8. Pay attention to prevention and control.

Establish a joint prevention and control mechanism in the Bohai Rim, including the Beijing-Tianjin-Hebei region, the Yangtze River Delta, the Pearl River Delta and other regions, strengthen the governance of densely populated areas and key large cities, and build a responsibility assessment system for the air environment improvement targets of various provinces (autonomous regions and municipalities).

9. Limit emissions. Incorporate heavily polluted weather into the emergency management of local emergencies, and promptly adopt measures such as limiting production and emissions of heavily polluting enterprises and restricting the movement of motor vehicles according to the level of pollution. Establish a code of conduct for the whole society to breathe and work together, the local government is responsible for the local air quality, implements the main responsibility of the enterprise for pollution control, and the relevant departments coordinate and linkage, advocate conservation, green consumption methods and living habits, and mobilize the whole people to participate in environmental protection and supervision.