Smog caused by atmospheric fine particulate matter (PM_2.5) pollution is closely related to local pollutant discharge and is also affected by local wind fields.This study used the urban area of Wuhan as the research object and examined the formation of river-land wind along the Yangtze River and the formation and transformation of lake-land wind along the East Lake.It was found that when the start time of the river wind and lake wind was 07:00-08:00,the maximum wind speed could reach 2 m/s.Additionally,the spring and summer river winds lasted longer than the autumn and winter seasons.The summer lake winds lasted longer than the spring.At the same time,it was found that there was a significant correlation between temperature and relative humidity near the area.The trend of humidity was generally opposite to that of temperature change,and the effect of temperature on relative humidity exhibited hysteresis with a delay time of about 1 h.