Previous work suggests that the nitrogen isotopic composition of atmospheric nitrogen oxides might distinguish the influence of different sources in the environment. We report on an automated, mobile, field-based method for the high collection efficiency of atmospheric NOx for N isotopic analysis at an hourly time resolution.
Wojtal, P. K., Miller, D. J., O'Connor, M., Clark, S. C., Hastings, M. G. Automated, High-resolution Mobile Collection System for the Nitrogen Isotopic Analysis of NOx. J. Vis. Exp. (118), e54962, doi:10.3791/54962 (2016).