TY  - RPRT
TI  - Nitrogen isotopes indicate vehicle emissions and biomass burning dominate ambient ammonia across Colorado's Front Range urban corridor
AU  - J. David Felix
AU  - Alexander Berner
AU  - Gregory A. Wetherbee
AU  - Sheila F. Murphy
AU  - Ruth C. Heindel
PY  - 2023
DO  - 10.1016/j.envpol.2022.120537
UR  - https://pubs.usgs.gov/publication/70238423
ID  - 70238423
ER  -