Review of methods for assessing deposition of reactive nitrogen pollutants across complex terrain with focus on the UK.

This review is a summary of the most up-to-date knowledge regarding assessment of atmospheric deposition of reactive nitrogen ( ) pollutants across complex terrain in the UK. Progress in the understanding of the mechanisms and quantification of deposition in areas of complex topography is slow, as no concerted attempts to measure the components of in complex terrain have been made in the last decade. This is likely due to the inherent complexity of the atmospheric processes and chemical interactions which contribute to deposition in these areas.