Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matter
Uncertainty in ammonia (NH3) emissions causes the inaccuracy of fine particulate matter simulations, which is associated with human health. To address this uncertainty, in this work, we employ the iterative finite difference mass balance (iFDMB) technique to revise NH3 emissions over East Asia using...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Environment International |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S016041202400059X |
| _version_ | 1797302521963741184 |
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| author | Mahmoudreza Momeni Yunsoo Choi Arash Kashfi Yeganeh Arman Pouyaei Jia Jung Jincheol Park Mark W. Shephard Enrico Dammers Karen E. Cady-Pereira |
| author_facet | Mahmoudreza Momeni Yunsoo Choi Arash Kashfi Yeganeh Arman Pouyaei Jia Jung Jincheol Park Mark W. Shephard Enrico Dammers Karen E. Cady-Pereira |
| author_sort | Mahmoudreza Momeni |
| collection | DOAJ |
| description | Uncertainty in ammonia (NH3) emissions causes the inaccuracy of fine particulate matter simulations, which is associated with human health. To address this uncertainty, in this work, we employ the iterative finite difference mass balance (iFDMB) technique to revise NH3 emissions over East Asia using the Cross-track Infrared Sounder (CRIS) satellite for July, August, and September 2019. Compared to the emissions, the revised NH3 emissions show an increase in China, particularly in the North China Plain (NCP) region, corresponding to agricultural land use in July, August, and September and a decrease in South Korea in September. The enhancement in NH3 emissions resulted in a remarkable increase in concentrations of NH3 by 5 ppb. in July and September, there is an increase in ammonium (NH4+) and nitrate (NO3-) concentrations by 5 μg/m3, particularly in the NCP region, while in August, both NH4+ and NO3- concentrations exhibit a decrease. For sulfate (SO42-), in August and September, the concentrations decreased over most regions of China and Taiwan, as a result of the production of ammonium sulfate; increased concentrations of SO42-, however, were simulated over South Korea, Japan, and the southern region of Chengdu, caused by higher relative humidity (RH). In contrast, during the month of July, our simulations showed an increase in SO42- concentrations over most regions of China. To gain a more comprehensive understanding, we defined a sulfur conversion ratio (SCR=(Spost-Sprior)/(SO42-post-SO42-prior)), which explains how changes in sulfur in the gas phase affect changes in sulfate concentrations. A subsequent sensitivity analysis performed in this study indicated the same relationship between changes in ammonia and its effect on inorganic fine particulate matter (PM2.5). This study highlights the challenge of controlling and managing inorganic PM2.5 and indicates that reducing the emissions of air pollutants do not necessarily lead to a reduction in their concentrations. |
| first_indexed | 2024-03-07T23:39:02Z |
| format | Article |
| id | doaj.art-1c5cae86c9754f719445aed294652efd |
| institution | Directory Open Access Journal |
| issn | 0160-4120 |
| language | English |
| last_indexed | 2024-03-07T23:39:02Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environment International |
| spelling | doaj.art-1c5cae86c9754f719445aed294652efd2024-02-20T04:18:26ZengElsevierEnvironment International0160-41202024-02-01184108473Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matterMahmoudreza Momeni0Yunsoo Choi1Arash Kashfi Yeganeh2Arman Pouyaei3Jia Jung4Jincheol Park5Mark W. Shephard6Enrico Dammers7Karen E. Cady-Pereira8Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USADepartment of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA; Corresponding author.Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USADepartment of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USADepartment of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA; Pacific Northwest National Laboratory (PNNL), Richland, WA, USADepartment of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USAEnvironment and Climate Change Canada, Toronto, ON M3H 5T4, CanadaEnvironment and Climate Change Canada, Toronto, ON M3H 5T4, CanadaAtmospheric and Environmental Research (AER), Lexington, MA, USAUncertainty in ammonia (NH3) emissions causes the inaccuracy of fine particulate matter simulations, which is associated with human health. To address this uncertainty, in this work, we employ the iterative finite difference mass balance (iFDMB) technique to revise NH3 emissions over East Asia using the Cross-track Infrared Sounder (CRIS) satellite for July, August, and September 2019. Compared to the emissions, the revised NH3 emissions show an increase in China, particularly in the North China Plain (NCP) region, corresponding to agricultural land use in July, August, and September and a decrease in South Korea in September. The enhancement in NH3 emissions resulted in a remarkable increase in concentrations of NH3 by 5 ppb. in July and September, there is an increase in ammonium (NH4+) and nitrate (NO3-) concentrations by 5 μg/m3, particularly in the NCP region, while in August, both NH4+ and NO3- concentrations exhibit a decrease. For sulfate (SO42-), in August and September, the concentrations decreased over most regions of China and Taiwan, as a result of the production of ammonium sulfate; increased concentrations of SO42-, however, were simulated over South Korea, Japan, and the southern region of Chengdu, caused by higher relative humidity (RH). In contrast, during the month of July, our simulations showed an increase in SO42- concentrations over most regions of China. To gain a more comprehensive understanding, we defined a sulfur conversion ratio (SCR=(Spost-Sprior)/(SO42-post-SO42-prior)), which explains how changes in sulfur in the gas phase affect changes in sulfate concentrations. A subsequent sensitivity analysis performed in this study indicated the same relationship between changes in ammonia and its effect on inorganic fine particulate matter (PM2.5). This study highlights the challenge of controlling and managing inorganic PM2.5 and indicates that reducing the emissions of air pollutants do not necessarily lead to a reduction in their concentrations.http://www.sciencedirect.com/science/article/pii/S016041202400059XiFDMBCrISInverse modelingAmmoniaEast AsiaInorganic particulate matter |
| spellingShingle | Mahmoudreza Momeni Yunsoo Choi Arash Kashfi Yeganeh Arman Pouyaei Jia Jung Jincheol Park Mark W. Shephard Enrico Dammers Karen E. Cady-Pereira Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matter Environment International iFDMB CrIS Inverse modeling Ammonia East Asia Inorganic particulate matter |
| title | Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matter |
| title_full | Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matter |
| title_fullStr | Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matter |
| title_full_unstemmed | Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matter |
| title_short | Constraining East Asia ammonia emissions through satellite observations and iterative Finite Difference Mass Balance (iFDMB) and investigating its impact on inorganic fine particulate matter |
| title_sort | constraining east asia ammonia emissions through satellite observations and iterative finite difference mass balance ifdmb and investigating its impact on inorganic fine particulate matter |
| topic | iFDMB CrIS Inverse modeling Ammonia East Asia Inorganic particulate matter |
| url | http://www.sciencedirect.com/science/article/pii/S016041202400059X |
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