空气质量-实时空气质量和天气预报 2.6

Do you want to stay up to date with the air quality in your city? Are you interested in real-time air quality information? Curious about the PM2.5 levels? China Air Quality offers a fast and accurate overview of air quality indices for cities across the nation, as well as the ability to check global air quality statistics.

The data available for inquiry includes PM2.5, PM10, temperature, humidity, pressure, carbon monoxide, CO2, sulfur dioxide, dew point, nitrogen dioxide, ozone, among other metrics.

As the AQI value increases, reaching higher levels and darker color codes, it indicates a more severe air pollution situation which poses greater health risks. When observing the AQI, there is no need to memorize specific values or levels; rather, pay attention to the six evaluation categories and their representative colors: Excellent (Green), Good (Yellow), Light Pollution (Orange), Moderate Pollution (Red), Heavy Pollution (Purple), Severe Pollution (Brown-Red).

Particulate Matter (PM) also known as fine particles or fine particulate matter, refers to particles in the atmosphere with a diameter less than 2μm (sometimes referred to as less than 2.5μm, i.e., PM2.5). Although constituting a minimal fraction of the earth's atmospheric composition, fine particulate matter significantly impacts air quality and visibility. These particles are small in size, contain numerous toxic substances, remain in the atmosphere for an extended period covering significant distances. As a result, they have a substantial impact on human health and atmospheric environmental quality.