Study of Mixed Pollution of Haze and Dust in Jinan Based on LiDAR

From 26 March to 30 2021, a severe mixed haze and dust pollution process occurred in Jinan, China. Ground light detection ranging (LiDAR) satellite radar were used observe analyze the pollution. In this study, variety of data, including pollutant concentration, meteorological factors, radiosonde Cloud–Aerosol Lidar Infrared Pathfinder Satellite Observation (CALIPSO) as well back-trajectory analysis, employed causes The results show that, at beginning weather process, fine particulate matter such PM2.5 was main source pollution, low air mass transporting originated from nearby cities polluted industrial areas. After 28 March, due influence high-altitude Mongolian mass, concentration coarse PM10 increased significantly. surface temperature, humidity, wind speed also affected accumulation pollutants, which timely diffusion ground LiDAR satellite-based detect On basis comprehensive analysis various formation investigated perspectives. extinction coefficient reflected verifying effectiveness detection. variation boundary layer height had an important effect on dissipation.