To analyze of the long-term trends of NOx NO2 and O3 concentration.
To show the seasonal, monthly, diurnal and weekday versus weekend patterns of NO, NO2, NOx and O3 by Times series plotting techniques.
To estimate pollutants and correlations between meteorological variables and air pollutants by Auto-correlation.
To explain O3/NO2 significant relationship between weather parameter
and seasonal characteristics by Multiple linear regression