By 2007, how many major cities have implemented weekly (or daily) air quality reports?

By 2007, the total number of key cities in China implementing weekly or daily air quality reports will reach 1 13.

These cities are located in various regions of China, including municipalities directly under the central government, provincial capitals, cities with separate plans and other large and medium-sized cities.

The monitoring and reporting of air quality in these cities is of great significance for raising public awareness of air pollution, promoting the formulation and implementation of environmental protection policies and improving air quality. By publishing weekly or daily air quality reports, the public can know the air quality of their cities in time and take corresponding protective measures to reduce the impact of air pollution on health.

These data also provide important decision-making basis for the government and environmental protection departments. They can formulate more scientific and reasonable environmental protection policies and take more effective measures to improve air quality according to air quality data.

The role of air quality daily:

1. Provide air quality information: Air Quality Daily provides real-time air quality data to the public, including the concentrations of pollutants such as PM2.5, PM 10, sulfur dioxide and nitrogen dioxide. These data can help the public understand the current air quality situation and take corresponding protective measures.

2. Guide public behavior: Through the air quality daily, the public can know which areas and time periods have poor air quality, so as to avoid outdoor activities or reduce outdoor activities time in these time periods. This helps to reduce the impact of air pollution on health.

3. Auxiliary decision-making: The government and environmental protection departments can analyze the sources and causes of air pollution according to the data of Air Quality Daily, formulate more scientific and reasonable environmental protection policies, and take more effective measures to improve air quality.

4. Promote environmental awareness: Through the release of daily air quality reports, the public will pay more attention to environmental protection issues and raise environmental awareness. At the same time, it also provides more opportunities for environmental organizations and volunteers to promote the development of environmental protection.

5. Early warning and prevention: Air Quality Daily not only provides real-time air quality information, but also issues early warning information when air pollution is serious. According to these early warning information, the public can take necessary preventive measures, such as closing doors and windows and avoiding outdoor activities, so as to reduce the impact of air pollution on health.

6. Promote cross-regional cooperation: Air pollution is often not a problem of a single city or region, and it needs to be solved through cross-regional cooperation. Through the publication of the air quality daily, different regions can understand each other's air quality, so as to take coordinated measures to jointly control it. This will help promote regional cooperation and development.