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1. Abstract Rocky Mountain National Park (RMNP) is experiencing negative ecosystem impacts due to nitrogen (N) deposition, which occurs in the forms of ammonium, nitrate and organic N. In order… Click to show full abstract
1. Abstract Rocky Mountain National Park (RMNP) is experiencing negative ecosystem impacts due to nitrogen (N) deposition, which occurs in the forms of ammonium, nitrate and organic N. In order to complement other source apportionment approaches, the efficacy of N isotopes of ammonia to distinguish sources of ammonia deposited in RMNP was investigated. This study reports ammonia concentrations and demonstrates that the average δ15N–NH3 isotopic ratios of certain sources (beef cattle production, −20.9‰; dairies, −28.2‰; wastewater treatment plants, −35.7‰, cropland −26.4‰, urban −16.9‰) were distinguishable (p
Journal Title: Atmospheric Environment
Year Published: 2019
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