With the development of social economy and the acceleration of urbanization, the air pollution caused by human activities is becoming more and more serious, which poses a great threat to people's health and ecological environment. The main pollutants in the atmosphere are sulfur dioxide, nitrogen oxides, particulate matter, etc., and industrial production, automobile exhaust emissions, construction, and domestic coal burning are the main causes of air pollution. Therefore, how to improve air quality has become the focus of people's attention. In order to better protect the environment and maintain the ecological balance, we need to take effective measures from various aspects to achieve air purification.

1. Optimize the energy structure and reduce pollutant emissions.

First of all, we should optimize the energy structure and increase the proportion of clean energy. For example, develop new energy sources such as wind energy, solar energy and nuclear energy, and gradually replace fossil fuels; Popularize ultra-low emission technology in the power industry to reduce the emission concentration of soot, SO2 and NOx in power plants; Promote clean and efficient utilization of coal and reduce environmental pollution caused by loose coal combustion; At the same time, promote new energy vehicles in the transportation field and reduce vehicle exhaust emissions.

2. Planting trees to increase the green area.

Afforestation can absorb carbon dioxide and release oxygen, thus purifying the air. Strengthening the function of carbon sink by expanding forest coverage will help alleviate the greenhouse effect. In addition, greening plants can also absorb dust and harmful gases and reduce the content of suspended particles in the air. Therefore, it is necessary to intensify the construction of urban gardens, actively plant all kinds of trees and flowers, form a good green barrier and provide residents with a fresh living environment.

3. Strengthen dust control

For a large number of dust generated in construction sites and road transportation, wet operation or covering with dust-proof net can be used to control it. Relevant government departments need to strengthen the supervision of the construction site to ensure that the construction unit strictly implements dust reduction measures, such as sprinkling water regularly and setting up enclosures. In addition, it is necessary to improve the relevant laws and regulations system, clarify the responsible subjects of all parties, and set up a reward and punishment mechanism to encourage all sectors of society to participate in environmental protection work together.

4. Promote indoor air purification equipment.

When the outdoor air quality is poor, people often stay at home to avoid inhaling too much pollutants. However, indoor air quality also needs attention. Installing fresh air system or using air purifier with HEPA filter can effectively remove harmful substances such as PM2.5 and formaldehyde, and keep indoor air fresh and comfortable.

To sum up, in the face of severe air pollution, we should adhere to the concept of sustainable development, actively explore diversified and comprehensive solutions, and strive to create a better home that is more livable and suitable for business.