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Need for Improved Monitoring of Spatial and Temporal Trends of Reduced Nitrogen

Published by U.S. EPA Office of Research and Development (ORD) | U.S. Environmental Protection Agency | Catalog Last Checked: August 03, 2026 at 12:45 AM | Dataset Last Updated: April 03, 2020
Data in Figure 1 are from publicly available databases including county-level ammonia (NH3) emissions from the US EPA National Emissions Inventory (https://www.epa.gov/air-emissions-inventories/2014-national-emissions-inventory-nei-data), ambient ammonium (NH4+) aerosol concentrations from the US EPA Clean Air Status and Trends Network (https://java.epa.gov/castnet/clearsession.do), and ambient NH3 concentrations from the National Atmospheric Deposition Program Ammonia Monitoring Network (AMoN) (http://nadp.slh.wisc.edu/data/AMoN/) Satellite observations of NH3 from the Infrared Atmospheric Sounding Instrument (IASI V2.2R) shown in Figure 2 are also publicly available (https://en.aeris-data.fr/metadata/?dc9dcce0-9324-451b-8d79-2d6df3094068). Diurnal profiles of ambient NH3 at different sites across the U.S. are summarized in Figure 3. Data from sites operated by EPA Office of Research and Development are attached as a spreadsheet with accompanying data dictionary. Greg Beachley (Beachley.gregory) is the contact for data from the Charleston, SC; Beltsville, MD and Bondville, IL sites. Katherine Benedict (Katherine.Benedict@colostate.edu) is the contact for data from the RMNP; Fort Collins, CO and Greeley, CO sites. This dataset is associated with the following publication: Puchalski, M., J. Walker, G. Beachley, M. Zondlo, K. Benedict, R. Grant, B. Schichtel, C. Rogers, A. Leytem, J. Rice, K. Morris, J. Schauer, and R. Wang. Need for Improved Monitoring of Spatial and Temporal Trends of Reduced Nitrogen. ENVIRONMENTAL MANAGEMENT. Springer-Verlag, New York, NY, USA, 0, (2019).

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  • https://en.aeris-data.fr/metadata/?dc9dcce0-9324-451b-8d79-2d6df3094068

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  • https://java.epa.gov/castnet/clearsession.do

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  • https://nadp.slh.wisc.edu/data/AMoN/

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  • https://www.epa.gov/air-emissions-inventories/2014-national-emissions-inventory-nei-data

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  • NHx_Puchalski et al_2019.xlsx

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "020:00"
]
contactPoint 
{
  "fn": "John Walker",
  "hasEmail": "mailto:walker.johnt@epa.gov"
}
description Data in Figure 1 are from publicly available databases including county-level ammonia (NH3) emissions from the US EPA National Emissions Inventory (https://www.epa.gov/air-emissions-inventories/2014-national-emissions-inventory-nei-data), ambient ammonium (NH4+) aerosol concentrations from the US EPA Clean Air Status and Trends Network (https://java.epa.gov/castnet/clearsession.do), and ambient NH3 concentrations from the National Atmospheric Deposition Program Ammonia Monitoring Network (AMoN) (http://nadp.slh.wisc.edu/data/AMoN/) Satellite observations of NH3 from the Infrared Atmospheric Sounding Instrument (IASI V2.2R) shown in Figure 2 are also publicly available (https://en.aeris-data.fr/metadata/?dc9dcce0-9324-451b-8d79-2d6df3094068). Diurnal profiles of ambient NH3 at different sites across the U.S. are summarized in Figure 3. Data from sites operated by EPA Office of Research and Development are attached as a spreadsheet with accompanying data dictionary. Greg Beachley (Beachley.gregory) is the contact for data from the Charleston, SC; Beltsville, MD and Bondville, IL sites. Katherine Benedict (Katherine.Benedict@colostate.edu) is the contact for data from the RMNP; Fort Collins, CO and Greeley, CO sites. This dataset is associated with the following publication: Puchalski, M., J. Walker, G. Beachley, M. Zondlo, K. Benedict, R. Grant, B. Schichtel, C. Rogers, A. Leytem, J. Rice, K. Morris, J. Schauer, and R. Wang. Need for Improved Monitoring of Spatial and Temporal Trends of Reduced Nitrogen. ENVIRONMENTAL MANAGEMENT. Springer-Verlag, New York, NY, USA, 0, (2019).
distribution 
[
  {
    "title": "https://en.aeris-data.fr/metadata/?dc9dcce0-9324-451b-8d79-2d6df3094068",
    "accessURL": "https://en.aeris-data.fr/metadata/?dc9dcce0-9324-451b-8d79-2d6df3094068"
  },
  {
    "title": "https://java.epa.gov/castnet/clearsession.do",
    "accessURL": "https://java.epa.gov/castnet/clearsession.do"
  },
  {
    "title": "https://nadp.slh.wisc.edu/data/AMoN/",
    "accessURL": "https://nadp.slh.wisc.edu/data/AMoN/"
  },
  {
    "title": "https://www.epa.gov/air-emissions-inventories/2014-national-emissions-inventory-nei-data",
    "accessURL": "https://www.epa.gov/air-emissions-inventories/2014-national-emissions-inventory-nei-data"
  },
  {
    "title": "NHx_Puchalski et al_2019.xlsx",
    "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
    "downloadURL": "https://pasteur.epa.gov/uploads/10.23719/1518502/NHx_Puchalski%20et%20al_2019.xlsx"
  }
]
identifier https://doi.org/10.23719/1518502
keyword 
[
  "bidirectional flux",
  "deposition",
  "micrometeorology",
  "nitrogen",
  "sulfur"
]
license https://pasteur.epa.gov/license/sciencehub-license.html
modified 2020-04-03
programCode 
[
  "020:000"
]
publisher 
{
  "name": "U.S. EPA Office of Research and Development (ORD)",
  "subOrganizationOf": {
    "name": "U.S. Environmental Protection Agency",
    "subOrganizationOf": {
      "name": "U.S. Government"
    }
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references 
[
  "https://www.awma.org/empastissues"
]
rights 
null
title Need for Improved Monitoring of Spatial and Temporal Trends of Reduced Nitrogen

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