Grand Trends: Grand Teton Reactive Nitrogen Deposition Study

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During this project, CSU investigators will complete laboratory analysis of samples collected in the GrandTReNDS study, will conduct data analysis of GrandTReNDS findings, and will prepare GrandTReNDS datasets for use in NPS air quality and source apportionment modeling efforts. CSU investigators will also continue support for the new IMPROVE pilot-scale NHx monitoring effort, continue passive sampling of ammonia and nitric acid in Grand Tetons NP, continue laboratory evaluations of ammonia measurement methods, and work toward publication of key findings from previous reactive nitrogen monitoring efforts in RMNP and the surrounding region. No additional field deployments are planned or budgeted as part of this project. This action will be issued as a task agreement, on a non-competitive basis to Colorado State University under an existing CESU Agreement No. H2370094000. This is a notice of intent and non competitive award in accordance with Department of Interior Policy, Department Manual 505DM2.

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