According to the official website of the Beijing Ecological Environment Monitoring Center, as of the specified time on the specified date, the Air Quality Index (AQI) in Beijing was , with an air quality level of grade , reaching the standard for heavy pollution. The primary pollutant in the air is .

Impact on health: Significant exacerbation of symptoms in heart and lung disease patients, reduced exercise tolerance, and general onset of symptoms in healthy individuals.

Suggested Measures: Children, the elderly, and individuals with heart or lung diseases should stay indoors and cease outdoor activities. The general public should reduce outdoor activities.

Beijing Environmental Monitoring released the air quality data this morning. Concentration (µg/m³) and index are as follows: City six districts: ; Northwest: ; Northeast: ; Southeast: ; Southwest: .

Many netizens have taken to social media to complain about the air quality in Beijing, with posts like "My throat has been particularly uncomfortable these past two days" and "The smog is so thick, I thought there was a fire somewhere when I left class yesterday." Some even shared screenshots from air quality monitoring apps, showing that the Air Quality Index (AQI) in Chaoyang District had reached severe pollution levels.

Some netizens have also shared comparison photos of the same location in Beijing, stating that the smog has become so severe that Beijing's Central Business District (CBD) has "disappeared."

According to a previous report by Beijing Daily, the forecast indicates that due to the control of the top of a low-pressure system, the atmospheric stratification is stable, and the diffusion conditions are unfavorable. The primary pollutant in Beijing today remains, and the overall air quality is at a level of moderate pollution. It is expected that on the night of the day, influenced by the northwest cold high-pressure system, there will be a significant drop in temperature, leading to a marked improvement in diffusion conditions, which will be conducive to the removal of regional pollutants. The air quality in Beijing will improve accordingly, expected to reach a level of good; on the day, under the control of the ground cold high-pressure system, there will be a significant northerly wind, allowing the air quality in Beijing to recover to an excellent level.