Development of an empirical model to predict nitrogen dioxide concentrations from weather variables for sites across the UK [An article from: Atmospheric Environment]

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Description:
The prediction of nitrogen dioxide (NO"2) concentrations from simple and available data such as meteorological records accurately over time steps shorter than 1yr would be of great benefit. Predictions of monthly, or more frequent, concentrations of NO"2 would be especially valuable when calculating nitrogen deposition to vegetation, as concentrations of NO"2 can fluctuate through the year. A model that predicts concentrations of NO"2 (@mgm^-^3) on a fortnightly time step at specific sites using mean fortnightly ambient air temperatures and a local annual concentration of NO"2 from the nearest representative monitoring site has been developed. The model was tested at a variety of sites across the UK and showed a reasonable pattern of agreement with measured values (R^2 from 0.45 to 0.67) for the majority of sites. The model could be used to predict deposition of NO"2-N from commonly recorded data sets, within the limits that have been tested.