Concentration of NO2 in the air over Tehran, Iran

Аннотация

The air quality analyses for nitrogen dioxide (NO₂) were conducted in Tehran, capital of Iran. Daily and annual variations in its average concentrations were calculated using measurements from four sampling stations. Multiple linear and nonlinear regression equations for relationships between concentration of pollutant and meteorological parameters were obtained from average data. The RMSE test showed that the stepwise model is the best option among the considered prediction models.