Fig. 4
NO\(_{2}\) temporal variation Temporal hourly and daily of the week NO\(_{2}\) concentration from variations for the 19 stations from 2019 to 2020. The hourly concentration of NO\(_{2}\) is highest in the early morning and lowest in the mid-afternoon. The station geo-location have an impact on the pollutant concentrates, the highest concentration found in the traffic area and lowers in the rural area