Figure 4.
The relationship between meteorological factors and PM concentration. (a) The relationship between wind velocity and PM2.5 concentration; (b) the relationship between wind velocity and PM10 concentration; (c) the relationship between temperature and PM2.5 concentration; (d) the relationship between temperature and PM10 concentration; (e) the relationship between humidity and PM2.5 concentration; (f) the relationship between humidity and PM10 concentration.
