Grantee Research Project Results
2014 Progress Report: Atmospheric Ammonia Emissions from the Livestock Sector: Development and Evaluation of a Process-based Modeling Approach
EPA Grant Number: R834549Title: Atmospheric Ammonia Emissions from the Livestock Sector: Development and Evaluation of a Process-based Modeling Approach
Investigators: Adams, Peter
Institution: Carnegie Mellon University
EPA Project Officer: Chung, Serena
Project Period: May 1, 2010 through April 30, 2014 (Extended to November 30, 2015)
Project Period Covered by this Report: May 1, 2014 through April 30,2015
Project Amount: $483,827
RFA: Novel Approaches to Improving Air Pollution Emissions Information (2009) RFA Text | Recipients Lists
Research Category: Air Quality and Air Toxics , Air
Objective:
- Develop process-based models of ammonia emissions from beef cattle, swine, and chickens that account for differences in farming practices as well as seasonal and diurnal variability
- Assess the uncertainty in livestock ammonia emissions and suggest sources of data that can help reduce this uncertainty
- Test process-based models at the farm scale against multi-year measurements conducted during the National Air Emissions Monitoring Study (NAEMS)
- Develop a revised national emissions inventory based on these results
- Test the performance of the revised national emissions inventory in a chemical transport model (CTM) against ambient measurements of NH3 and NH4+ concentrations and deposition
- Assess the sensitivity of inorganic PM2.5 to NH3, SO2, and NOx emissions under current and future policy regimes
Progress Summary:
The goals of the project have not changed. In the past year, an extension was granted by EPA due to an unforeseen delay in obtaining animal survey data from the US Department of Agriculture. It is fully anticipated that the goals of the project will be met by the new project end date of November 30, 2015. Additionally, the U.S. EPA’s National Emissions Inventory (NEI) team has shown very strong interest in the results of this project and plans to adopt the emissions inventory we are developing for the 2014 NEI. We have been coordinating with Rhonda Thompson and others in the EPA NEI team to make this happen. In the past year, the student working on the project, Alyssa McQuilling (nee Moore), has submitted for publication a manuscript that describes the finalized the farm emissions models (FEMs) for all livestock types (Task 1). This manuscript received a reasonably favorable peer review and has been revised accordingly. We are now awaiting a decision or second review from the journal. Moreover, Alyssa has concluded the comparisons with the NAEMS emissions measurements (Task 2) and has an advanced draft describing these results that will be submitted in the next 1-2 months. She is now proceeding on using the evaluated FEMs to build a national ammonia emissions inventory (Tasks 3 and 4). In summary, Tasks 1 and 2 are complete, Tasks 3 and 4 are underway. Our third and final manuscript will include the results of Tasks 3-5 (inventory development and evaluation).
Future Activities:
Journal Articles on this Report : 1 Displayed | Download in RIS Format
Other project views: | All 3 publications | 1 publications in selected types | All 1 journal articles |
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Type | Citation | ||
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McQuilling AM, Adams PJ. Semi-empirical process-based models for ammonia emissions from beef, swine, and poultry operations in the United States. Atmospheric Environment 2015;120:127-136. |
R834549 (2013) R834549 (2014) R834549 (Final) |
Exit Exit Exit |
Supplemental Keywords:
acid deposition, particulate matter, ecosystem, agricultureProgress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.
Project Research Results
- Final Report
- 2013 Progress Report
- 2012 Progress Report
- 2011 Progress Report
- 2010 Progress Report
- Original Abstract
1 journal articles for this project