[HIGHLIGHTS] In the first half of February, the air quality in Beijing-Tianjin-Hebei and surrounding areas was mainly excellent.

In the first half of February, the air quality in Beijing-Tianjin-Hebei and surrounding areas was mainly excellent. In the later period, due to the impact of fireworks and firecrackers, some cities may experience light to moderate pollution.

The Northeast, Southwest and most of South China was mainly good to lightly polluted. The primary pollutant is PM2.5 or PM10, and short-term moderate pollution may occur locally. The air quality is expected to be mainly good, with light to Moderate pollution possible.