Beijing is once again affected by sand and dust, experts say more than 60% of the sand originates from southern Mongolia.

Affected by the upstream dust transport, on April 3, Beijing experienced dust weather. Zhai Liang, the chief forecaster of the Beijing Meteorological Observatory, stated that this dust process occurred from noon to evening on the 3rd. The Beijing Meteorological Observatory issued a yellow warning for strong winds at 16:35 on the 2nd. On April 3, the National Forestry and Grassland Administration's official newspaper "China Green Times" quoted experts as saying that the southern part of Mongolia is the largest source of PM10 in Beijing. During the three dust weather processes in 2020, the contribution of the dust source in the Eastern Gobi province of Mongolia to the dust in Beijing reached 65%. According to literature, since 2020, the amount of dust released by the southern region of Mongolia has shown a significant increase in the total amount of dust released in the central part of East Asia, and its impact on Beijing is becoming increasingly apparent.