VandenBoer, TrevorShah, Moxy Hemantkumar2025-11-112025-11-112025-07-242025-11-11https://hdl.handle.net/10315/43374Reactive nitrogen compounds (NO, NO2, HONO, and NH3; Nr) play an important role in atmospheric processes and pose environmental and health risks. Though studied individually, their interactions at the surface–atmosphere interface remain unexplored. To address this issue, a comprehensive Nr dynamic chamber setup was developed by modifying a commercially available system for GHGs. System modifications to minimize surface loss for Nr were implemented. Proof-of-concept measurements under controlled lab conditions demonstrated that NO, NO2, HONO, NH3, and N2O emissions can be quantified simultaneously. The p-values for the NO, NO2 and HONO within a specific soil volumetric water content range (20-24%) revealed heterogeneity, suggesting a need to reconsider the soil sampling and handling techniques used in laboratory studies. Emission trends from urea and synthetic magnesium/zinc ammonium carbonate fertilizers provide preliminary insights into Nr release from fertilized soils.Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.Soil sciencesAtmospheric chemistryAnalytical chemistryElectronic Thesis or Dissertation2025-11-11SoilDynamic chamberReactive nitrogen (Nr)NOxFertilizerEmissionsFluxesGHGLabGreenhouse gases