Table 3.

The scatter plot of AQI in Urumqi in 2022.

Meteorological element	Precipitation (0.1 mm)	Average air pressure (0.1 hPa)	Average wind speed (0.1 m•s−1)	Mean air temperature (0.1°C)	Average water pressure (0.1 hPa)	Mean relative humidity (1%)
PM2.5	−0.545	0.887**	−0.825**	−0.914**	−0.791**	0.871**
PM10	−0.590	0.845**	−0.811**	−0.869**	−0.758**	0.820**
NO2	−0.625*	0.838**	−0.849**	−0.887**	−0.760**	0.800**
SO2	−0.690*	0.838**	−0.838**	−0.847**	−0.780**	0.752**
CO	−0.579	0.902**	−0.848**	−0.939**	−0.830**	0.899**
O3	0.522	−0.939**	0.750**	0.937**	0.980**	−0.824**

** is significantly correlated at the 0.01 level. * is significantly correlated at the 0.5 level.