Articles | Volume 20, issue 5
https://doi.org/10.5194/acp-20-3107-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-3107-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Mar 2020
Research article |
| 16 Mar 2020
| 16 Mar 2020
Air quality in the eastern United States and Eastern Canada for 1990–2015: 25 years of change in response to emission reductions of SO2 and NOx in the region
Jian Feng
CORRESPONDING AUTHOR
Air Quality Measurement and Analysis Research Section, Atmospheric
Science and Technology Directorate, Environment and Climate Change Canada,
Toronto, Canada
Elton Chan
Measurements, Modelling and Interpretation Section, Atmospheric
Science and Technology Directorate, Environment and Climate Change Canada,
Toronto, Canada
Robert Vet
Air Quality Measurement and Analysis Research Section, Atmospheric
Science and Technology Directorate, Environment and Climate Change Canada,
Toronto, Canada
retired from Environment and Climate Change Canada in 2018.
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Cited
21 citations as recorded by crossref.
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- Inter-comparison of measurements of inorganic chemical components in precipitation from NADP and CAPMoN at collocated sites in the USA and Canada during 1986–2019 J. Feng et al. 10.1007/s10661-023-11771-z
- Significant contrasts in aerosol acidity between China and the United States B. Zhang et al. 10.5194/acp-21-8341-2021
- Improving predictability of high-ozone episodes through dynamic boundary conditions, emission refresh and chemical data assimilation during the Long Island Sound Tropospheric Ozone Study (LISTOS) field campaign S. Ma et al. 10.5194/acp-21-16531-2021
- Haze Occurrence Caused by High Gas-to-Particle Conversion in Moisture Air under Low Pollutant Emission in a Megacity of China Q. Ma et al. 10.3390/ijerph19116405
- Trends of inorganic sulfur and nitrogen species at an urban site in western Canada (2004–2018) H. Wang & L. Zhang 10.1016/j.envpol.2023.122079
- Trends in Seasonal Mean Speciated Aerosol Composition in Remote Areas of the United States From 2000 Through 2021 J. Hand et al. 10.1029/2023JD039902
- Impact of emissions from a single urban source on air quality estimated from mobile observation and WRF-STILT model simulations H. Fan et al. 10.1007/s11869-021-01023-9
- Airborne particulate matter R. Harrison 10.1098/rsta.2019.0319
- Triple oxygen isotope composition of combustion sulfate X. Sun et al. 10.1016/j.atmosenv.2023.120095
- The skin is no barrier to mixtures: Air pollutant mixtures and reported psoriasis or eczema in the Personalized Environment and Genes Study (PEGS) M. Lowe et al. 10.1038/s41370-022-00502-0
- Thirty years of the Clean Air Act Amendments: Impacts on haze in remote regions of the United States (1990–2018) J. Hand et al. 10.1016/j.atmosenv.2020.117865
- Bridging the spatial gaps of the Ammonia Monitoring Network using satellite ammonia measurements R. Wang et al. 10.5194/acp-23-13217-2023
- Substantial changes in gaseous pollutants and chemical compositions in fine particles in the North China Plain during the COVID-19 lockdown period: anthropogenic vs. meteorological influences R. Li et al. 10.5194/acp-21-8677-2021
- Sea salt reactivity over the northwest Atlantic: an in-depth look using the airborne ACTIVATE dataset E. Edwards et al. 10.5194/acp-24-3349-2024
- Long-term declines in atmospheric nitrogen and sulfur deposition reduce critical loads exceedances at multiple Canadian rural sites, 2000–2018 I. Cheng et al. 10.5194/acp-22-14631-2022
- Quantifying organic matter and functional groups in particulate matter filter samples from the southeastern United States – Part 2: Spatiotemporal trends A. Boris et al. 10.5194/amt-14-4355-2021
- FVM-RANS Modeling of Air Pollutants Dispersion and Traffic Emission in Dhaka City on a Suburb Scale M. Ali et al. 10.3390/su15010673
- Inorganic chemical components in precipitation in the eastern U.S. and Eastern Canada during 1989–2016: Temporal and regional trends of wet concentration and wet deposition from the NADP and CAPMoN measurements J. Feng et al. 10.1016/j.atmosenv.2021.118367
- Role of Dust and Iron Solubility in Sulfate Formation during the Long-Range Transport in East Asia Evidenced by 17O-Excess Signatures S. Itahashi et al. 10.1021/acs.est.2c03574
- Nitrogen deposition in the UK at 1 km resolution from 1990 to 2017 S. Tomlinson et al. 10.5194/essd-13-4677-2021
21 citations as recorded by crossref.
- Isotopic evidence for acidity-driven enhancement of sulfate formation after SO 2 emission control S. Hattori et al. 10.1126/sciadv.abd4610
- Inter-comparison of measurements of inorganic chemical components in precipitation from NADP and CAPMoN at collocated sites in the USA and Canada during 1986–2019 J. Feng et al. 10.1007/s10661-023-11771-z
- Significant contrasts in aerosol acidity between China and the United States B. Zhang et al. 10.5194/acp-21-8341-2021
- Improving predictability of high-ozone episodes through dynamic boundary conditions, emission refresh and chemical data assimilation during the Long Island Sound Tropospheric Ozone Study (LISTOS) field campaign S. Ma et al. 10.5194/acp-21-16531-2021
- Haze Occurrence Caused by High Gas-to-Particle Conversion in Moisture Air under Low Pollutant Emission in a Megacity of China Q. Ma et al. 10.3390/ijerph19116405
- Trends of inorganic sulfur and nitrogen species at an urban site in western Canada (2004–2018) H. Wang & L. Zhang 10.1016/j.envpol.2023.122079
- Trends in Seasonal Mean Speciated Aerosol Composition in Remote Areas of the United States From 2000 Through 2021 J. Hand et al. 10.1029/2023JD039902
- Impact of emissions from a single urban source on air quality estimated from mobile observation and WRF-STILT model simulations H. Fan et al. 10.1007/s11869-021-01023-9
- Airborne particulate matter R. Harrison 10.1098/rsta.2019.0319
- Triple oxygen isotope composition of combustion sulfate X. Sun et al. 10.1016/j.atmosenv.2023.120095
- The skin is no barrier to mixtures: Air pollutant mixtures and reported psoriasis or eczema in the Personalized Environment and Genes Study (PEGS) M. Lowe et al. 10.1038/s41370-022-00502-0
- Thirty years of the Clean Air Act Amendments: Impacts on haze in remote regions of the United States (1990–2018) J. Hand et al. 10.1016/j.atmosenv.2020.117865
- Bridging the spatial gaps of the Ammonia Monitoring Network using satellite ammonia measurements R. Wang et al. 10.5194/acp-23-13217-2023
- Substantial changes in gaseous pollutants and chemical compositions in fine particles in the North China Plain during the COVID-19 lockdown period: anthropogenic vs. meteorological influences R. Li et al. 10.5194/acp-21-8677-2021
- Sea salt reactivity over the northwest Atlantic: an in-depth look using the airborne ACTIVATE dataset E. Edwards et al. 10.5194/acp-24-3349-2024
- Long-term declines in atmospheric nitrogen and sulfur deposition reduce critical loads exceedances at multiple Canadian rural sites, 2000–2018 I. Cheng et al. 10.5194/acp-22-14631-2022
- Quantifying organic matter and functional groups in particulate matter filter samples from the southeastern United States – Part 2: Spatiotemporal trends A. Boris et al. 10.5194/amt-14-4355-2021
- FVM-RANS Modeling of Air Pollutants Dispersion and Traffic Emission in Dhaka City on a Suburb Scale M. Ali et al. 10.3390/su15010673
- Inorganic chemical components in precipitation in the eastern U.S. and Eastern Canada during 1989–2016: Temporal and regional trends of wet concentration and wet deposition from the NADP and CAPMoN measurements J. Feng et al. 10.1016/j.atmosenv.2021.118367
- Role of Dust and Iron Solubility in Sulfate Formation during the Long-Range Transport in East Asia Evidenced by 17O-Excess Signatures S. Itahashi et al. 10.1021/acs.est.2c03574
- Nitrogen deposition in the UK at 1 km resolution from 1990 to 2017 S. Tomlinson et al. 10.5194/essd-13-4677-2021
Latest update: 18 Apr 2024
Short summary
In this study, we analyzed air concentration data on SO42-, NO3-, NH4+, HNO3, and SO2 measured by CASTNET in the US and by CAPMoN in Canada to reveal the temporal and spatial trends of air pollutants over the eastern US and Eastern Canada. We also explained (1) why the reductions of SO2 were faster than SO42- and (2) why NO3- did not decrease during the cold season except in the Midwest and southern Ontario despite
NOx emissions being significantly reduced for the whole region.
In this study, we analyzed air concentration data on SO42-, NO3-, NH4+, HNO3, and SO2 measured...
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