Deposition of reactive nitrogen during the Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS) study

TitleDeposition of reactive nitrogen during the Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS) study
Publication TypeJournal Article
Year of Publication2010
AuthorsBeem KB, Raja S, Schwandner FM, Taylor C, Lee T, Sullivan AP, Carrico CM, McMeeking GR, Day DE, Levin E, Hand J, Kreidenweis SM, Schichtel B, Malm WC, Collett, Jr JL
JournalEnvironmental Pollution
Volume158
Pagination862-72
Date PublishedMar
Type of ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.
ISBN Number1873-6424 (Electronic)0269-7491 (Linking)
Accession Number19833422
Keywords*Environmental Monitoring, Air Pollutants/*analysis, Colorado, Nitrogen/*analysis, Seasons, Sulfur/*analysis
Abstract

Increases in reactive nitrogen deposition are a growing concern in the U.S. Rocky Mountain west. The Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS) study was designed to improve understanding of the species and pathways that contribute to nitrogen deposition in Rocky Mountain National Park (RMNP). During two 5-week field campaigns in spring and summer of 2006, the largest contributor to reactive nitrogen deposition in RMNP was found to be wet deposition of ammonium (34% spring and summer), followed by wet deposition of nitrate (24% spring, 28% summer). The third and fourth most important reactive nitrogen deposition pathways were found to be wet deposition of organic nitrogen (17%, 12%) and dry deposition of ammonia (14%, 16%), neither of which is routinely measured by air quality/deposition networks operating in the region. Total reactive nitrogen deposition during the spring campaign was determined to be 0.45 kg ha(-1) and more than doubled to 0.95 kg ha(-1) during the summer campaign.

Alternate TitleEnviron Pollut