In the transmission process, dust particles can mix with a variety of man-made pollution gases and particle emissions. The long-distance transport of dust plumes can alter the atmospheric conditions on regional and global scales. During spring, the Gobi region is affected by the Mongolian cyclone, which is the main factor behind the severe Asian dust storms.
The trans-Pacific transport of mineral dust from East Asia to North America frequently occurs during springtime. These large emissions have a significant influence on the global radiation balance, climate, ambient air quality, and human health. The annual dust emissions in East Asia account for approximately 25% of the total global dust emissions. This study will help improve the dust resistance and retention efficiency of forest shelterbelt projects during dust storms. It showed that (1) the PM 2.5 and PM 10 concentrations during a dust storm, on sunny days, and during light pollution periods, were higher in the non-forest covered area (NFC area) than in the forest covered area (FC area), except during heavy pollution events which suggests that the forests have a strong effect on dust resistance (2) the PM reduction efficiency of forests was highest on sunny days, followed by light pollution periods, heavy pollution periods, and during the dust storm (3) after the dust storm, TSP captured by leaves significantly increased, especially for the broadleaved tree species and the particulates number in the grooves on leaves’ surface increased particularly sharply. In the present study, atmospheric PM 10 and PM 2.5 concentrations were investigated, and a scanning electron microscope and an X-ray energy spectrometer were used to analyze the effects of dust resistance and capture by forests.
Moreover, a heterogeneous reaction occurs when dust particles are mixed with man-made pollution gases and particles.
The transpacific transport of mineral dust often occurs in spring, and a large amount of aeolian dust is deposited in the Asian continent and north Pacific.
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