1
|
Foley KM, Pouliot GA, Eyth A, Aldridge MF, Allen C, Appel KW, Bash JO, Beardsley M, Beidler J, Choi D, Farkas C, Gilliam RC, Godfrey J, Henderson BH, Hogrefe C, Koplitz SN, Mason R, Mathur R, Misenis C, Possiel N, Pye HO, Reynolds L, Roark M, Roberts S, Schwede DB, Seltzer KM, Sonntag D, Talgo K, Toro C, Vukovich J, Xing J, Adams E. 2002-2017 anthropogenic emissions data for air quality modeling over the United States. Data Brief 2023; 47:109022. [PMID: 36942100 PMCID: PMC10023994 DOI: 10.1016/j.dib.2023.109022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/06/2023] Open
Abstract
The United States Environmental Protection Agency (US EPA) has developed a set of annual North American emissions data for multiple air pollutants across 18 broad source categories for 2002 through 2017. The sixteen new annual emissions inventories were developed using consistent input data and methods across all years. When a consistent method or tool was not available for a source category, emissions were estimated by scaling data from the EPA's 2017 National Emissions Inventory with scaling factors based on activity data and/or emissions control information. The emissions datasets are designed to support regional air quality modeling for a wide variety of human health and ecological applications. The data were developed to support simulations of the EPA's Community Multiscale Air Quality model but can also be used by other regional scale air quality models. The emissions data are one component of EPA's Air Quality Time Series Project which also includes air quality modeling inputs (meteorology, initial conditions, boundary conditions) and outputs (e.g., ozone, PM2.5 and constituent species, wet and dry deposition) for the Conterminous US at a 12 km horizontal grid spacing.
Collapse
Affiliation(s)
- Kristen M. Foley
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
- Corresponding authors. @kfoley7991
| | - George A. Pouliot
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
- Corresponding authors. @kfoley7991
| | - Alison Eyth
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Michael F. Aldridge
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Christine Allen
- General Dynamics Information Technology, 79 T.W. Alexander Drive, Research Triangle Park, NC 27709, United States
| | - K. Wyat Appel
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Jesse O. Bash
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Megan Beardsley
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - James Beidler
- General Dynamics Information Technology, 79 T.W. Alexander Drive, Research Triangle Park, NC 27709, United States
| | - David Choi
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Caroline Farkas
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Robert C. Gilliam
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Janice Godfrey
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Barron H. Henderson
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Christian Hogrefe
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Shannon N. Koplitz
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Rich Mason
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Rohit Mathur
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Chris Misenis
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Norm Possiel
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Havala O.T. Pye
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Lara Reynolds
- General Dynamics Information Technology, 79 T.W. Alexander Drive, Research Triangle Park, NC 27709, United States
| | - Matthew Roark
- General Dynamics Information Technology, 79 T.W. Alexander Drive, Research Triangle Park, NC 27709, United States
| | - Sarah Roberts
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Donna B. Schwede
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Karl M. Seltzer
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Darrell Sonntag
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Kevin Talgo
- General Dynamics Information Technology, 79 T.W. Alexander Drive, Research Triangle Park, NC 27709, United States
| | - Claudia Toro
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Jeff Vukovich
- US Environmental Protection Agency, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States
| | - Jia Xing
- School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, China
| | - Elizabeth Adams
- University of North Carolina, Institute for the Environment, 100 Europa Drive, Suite 490, CB #1105, Chapel Hill, NC 27599, United States
| |
Collapse
|
2
|
Fenn ME, Bytnerowicz A, Schilling SL, Vallano DM, Zavaleta ES, Weiss SB, Morozumi C, Geiser LH, Hanks K. On-road emissions of ammonia: An underappreciated source of atmospheric nitrogen deposition. Sci Total Environ 2018; 625:909-919. [PMID: 29996462 DOI: 10.1016/j.scitotenv.2017.12.313] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/26/2017] [Accepted: 12/27/2017] [Indexed: 05/26/2023]
Abstract
UNLABELLED We provide updated spatial distribution and inventory data for on-road NH3 emissions for the continental United States (U.S.) On-road NH3 emissions were determined from on-road CO2 emissions data and empirical NH3:CO2 vehicle emissions ratios. Emissions of NH3 from on-road sources in urbanized regions are typically 0.1-1.3tkm-2yr-1 while NH3 emissions in agricultural regions generally range from 0.4-5.5tkm-2yr-1, with a few hotspots as high as 5.5-11.2tkm-2yr-1. Counties with higher vehicle NH3 emissions than from agriculture include 40% of the U.S. POPULATION The amount of wet inorganic N deposition as NH4+ from the National Atmospheric Deposition Program (NADP) network ranged from 37 to 83% with a mean of 58.7%. Only 4% of the NADP sites across the U.S. had <45% of the N deposition as NH4+ based on data from 2014 to 2016, illustrating the near-universal elevated proportions of NH4+ in deposition across the U.S. Case studies of on-road NH3 emissions in relation to N deposition include four urban sites in Oregon and Washington where the average NH4-N:NO3-N ratio in bulk deposition was 2.3. At urban sites in the greater Los Angeles Basin, bulk deposition of NH4-N and NO3-N were equivalent, while NH4-N:NO3-N in throughfall under shrubs ranged from 0.6 to 1.7. The NH4-N:NO3-N ratio at 7-10 sites in the Lake Tahoe Basin averaged 1.4 and 1.6 in bulk deposition and throughfall, and deposition of NH4-N was strongly correlated with summertime NH3 concentrations. On-road emissions of NH3 should not be ignored as an important source of atmospheric NH3, as a major contributor to particulate air pollution, and as a driver of N deposition in urban and urban-affected regions.
Collapse
Affiliation(s)
- Mark E Fenn
- USDA Forest Service, Pacific Southwest Research Station, 4955 Canyon Crest Drive, Riverside, CA 92507, USA.
| | - Andrzej Bytnerowicz
- USDA Forest Service, Pacific Southwest Research Station, 4955 Canyon Crest Drive, Riverside, CA 92507, USA
| | - Susan L Schilling
- USDA Forest Service, Pacific Southwest Research Station, 4955 Canyon Crest Drive, Riverside, CA 92507, USA
| | - Dena M Vallano
- Environmental Studies Department, University of California, Santa Cruz, CA 95064, USA
| | - Erika S Zavaleta
- Environmental Studies Department, University of California, Santa Cruz, CA 95064, USA
| | - Stuart B Weiss
- Creekside Center for Earth Observations, Menlo Park, CA 94025, USA
| | - Connor Morozumi
- Environmental Studies Department, University of California, Santa Cruz, CA 95064, USA
| | - Linda H Geiser
- U.S. Forest Service, Watershed, Fish, Wildlife, Air & Rare Plants, 201 14th Street SW, Washington, DC 20250, USA
| | - Kenneth Hanks
- USDA Forest Service, Pacific Southwest Research Station, 4955 Canyon Crest Drive, Riverside, CA 92507, USA
| |
Collapse
|