Nitrogen isotopes indicate vehicle emissions and biomass burning dominate ambient ammonia across Colorado's Front Range urban corridor

Enhancements in Ammonia and Methane from Agricultural Sources in the Northeastern Colorado Front Range Using Observations from a Small Research Aircraft

(2022) Ilana B. Pollack et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Elevated Nitrogen Deposition to Fire‐Prone Forests Adjacent to Urban and Agricultural Areas, Colorado Front Range, USA

(2022) Ruth C. Heindel et al.   Earths Future

Is fertilization the dominant source of ammonia in the urban atmosphere?

(2022) Mengna Gu et al.   SCIENCE OF THE TOTAL ENVIRONMENT

The changing risk and burden of wildfire in the United States

(2021) Marshall Burke et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

The contribution of wildland fire emissions to deposition in the U S: implications for tree growth and survival in the Northwest

(2021) Shannon N Koplitz et al.   Environmental Research Letters

Revisiting the Concentration Observations and Source Apportionment of Atmospheric Ammonia

(2020) Yuepeng Pan et al.   ADVANCES IN ATMOSPHERIC SCIENCES

Assessing the efficacy of nitrogen isotopes to distinguish Colorado Front Range ammonia sources affecting Rocky Mountain National Park

(2019) J.J. Stratton et al.   ATMOSPHERIC ENVIRONMENT

Inorganic nitrogen wet deposition gradients in the Denver-Boulder metropolitan area and Colorado Front Range – Preliminary implications for Rocky Mountain National Park and interpolated deposition maps

(2019) Gregory A. Wetherbee et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Fossil fuel-related emissions were the major source of NH3 pollution in urban cities of northern China in the autumn of 2017

(2019) Zhongyi Zhang et al.   ENVIRONMENTAL POLLUTION

Persistent Nonagricultural and Periodic Agricultural Emissions Dominate Sources of Ammonia in Urban Beijing: Evidence from 15N Stable Isotope in Vertical Profiles

(2019) Yangyang Zhang et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Hotspots of nitrogen deposition in the world's urban areas: a global data synthesis

(2019) Stephen M Decina et al.   FRONTIERS IN ECOLOGY AND THE ENVIRONMENT

Investigating ammonia emissions in a coastal urban airshed using stable isotope techniques

(2019) Alexander H. Berner et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Isotopic evidence for enhanced fossil fuel sources of aerosol ammonium in the urban atmosphere

(2018) Yuepeng Pan et al.   ENVIRONMENTAL POLLUTION

On-road emissions of ammonia: An underappreciated source of atmospheric nitrogen deposition

(2018) Mark E. Fenn et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Isotopic advances in understanding reactive nitrogen deposition and atmospheric processing

(2018) Emily M. Elliott et al.   SCIENCE OF THE TOTAL ENVIRONMENT

Theoretical Phase Resolved Ammonia–Ammonium Nitrogen Equilibrium Isotope Exchange Fractionations: Applications for Tracking Atmospheric Ammonia Gas-to-Particle Conversion

(2018) Wendell W. Walters et al.   ACS Earth and Space Chemistry

Vehicle Emissions as an Important Urban Ammonia Source in the United States and China

(2017) Kang Sun et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Fossil Fuel Combustion-Related Emissions Dominate Atmospheric Ammonia Sources during Severe Haze Episodes: Evidence from 15N-Stable Isotope in Size-Resolved Aerosol Ammonium

(2016) Yuepeng Pan et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Conditional vulnerability of plant diversity to atmospheric nitrogen deposition across the United States

(2016) Samuel M. Simkin et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Impact of anthropogenic climate change on wildfire across western US forests

(2016) John T. Abatzoglou et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Reactive Nitrogen Species Emission Trends in Three Light-/Medium-Duty United States Fleets

(2015) Gary A. Bishop et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Examining the transport of ammonia emissions across landscapes using nitrogen isotope ratios

(2014) J. David Felix et al.   ATMOSPHERIC ENVIRONMENT

Seasonal ambient ammonia and ammonium concentrations in a pilot IMPROVE NHx monitoring network in the western United States

(2014) Xi Chen et al.   ATMOSPHERIC ENVIRONMENT

Recent trends in gas-phase ammonia and PM2.5 ammonium in the Southeast United States

(2014) Rick Saylor et al.   JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION

Ammonia emissions in the United States, European Union, and China derived by high-resolution inversion of ammonium wet deposition data: Interpretation with a new agricultural emissions inventory (MASAGE_NH3)

(2014) F. Paulot et al.   JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES

A seasonal nitrogen deposition budget for Rocky Mountain National Park

(2013) K. B. Benedict et al.   ECOLOGICAL APPLICATIONS

Characterizing the isotopic composition of atmospheric ammonia emission sources using passive samplers and a combined oxidation-bacterial denitrifier approach

(2013) J. David Felix et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Observations of atmospheric reactive nitrogen species in Rocky Mountain National Park and across northern Colorado

(2012) Katherine B. Benedict et al.   ATMOSPHERIC ENVIRONMENT

How does N deposition affect belowground heathland recovery following wildfire?

(2012) E.R. Green et al.   SOIL BIOLOGY & BIOCHEMISTRY

Inorganic ion and nitrogen isotopic compositions of atmospheric aerosols at Yurihonjo, Japan: Implications for nitrogen sources

(2011) Hiroto Kawashima et al.   ATMOSPHERIC ENVIRONMENT

Passive ammonia monitoring in the United States: Comparing three different sampling devices

(2011) Melissa A. Puchalski et al.   JOURNAL OF ENVIRONMENTAL MONITORING

Source Partitioning Using Stable Isotopes: Coping with Too Much Variation

(2010) Andrew C. Parnell et al.   PLoS One

Variability of Anaerobic Animal Waste Lagoon delta15N Source Signatures

(2009) Sadayappan Mariappan et al.   ENVIRONMENTAL FORENSICS

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

(2009) Katherine B. Beem et al.   ENVIRONMENTAL POLLUTION