Assessing the effect of long-range pollutant transportation on air quality in Seoul using the conditional potential source contribution function method

Ukkyo Jeong; Jhoon Kim; Hanlim Lee; Yun Gon Lee

doi:10.1016/j.atmosenv.2016.11.017

Assessing the effect of long-range pollutant transportation on air quality in Seoul using the conditional potential source contribution function method

Ukkyo Jeong, Jhoon Kim, Hanlim Lee, Yun Gon Lee

Institute of Earth·Atmosphere·Astronomy(BK21+)

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

It is important to estimate the effects of the long-range transport of atmospheric pollutants for efficient and effective strategies to control air quality. In this study, the contributions of trans-boundary transport to the mean concentrations of SO₂, NO₂, CO, and PM₁₀ in Seoul, Korea from 2001 to 2014 were estimated based on the conditional potential source contribution function (CPSCF) method. Eastern China was found to be the major source of trans-boundary pollution in Seoul, but moderate sources were also located in northeastern China. The contribution of long-range transport from Japan was negligible. The spatial distributions of the potential source contribution function (PSCF) values of each pollutant showed reasonable consistency with their emission inventory and satellite products. The PSCF values of SO₂ and PM₁₀ from eastern China were higher than those of NO₂ and CO. The mean concentrations of SO₂, NO₂, CO, and PM₁₀ in Seoul for the period from 2001 to 2014 were 5.34, 37.0, and 619.1 ppb, and 57.4 4 μg/m³, respectively. The contributions of long-range transport to the mean concentrations of SO₂, NO₂, CO, and PM₁₀ in Seoul were 0.74, 3.4, and 39.0 ppb, and 12.1 μg/m³, respectively, which are 14%, 9%, 6%, and 21% of the mean concentrations, respectively. The annual mean concentrations of SO₂ and NO₂ followed statistically significant increasing linear trends (0.5 and 1.6 ppb per decade, respectively), whereas the trends in the annual mean concentrations of CO and PM₁₀ were statistically insignificant. The trends in the ratio of the increased concentrations associated with long-range transport to the annual mean concentrations of the pollutants were statistically insignificant. However, the results indicate that the trans-boundary transport of SO₂, NO₂, CO, and PM₁₀ from eastern China consistently affected air quality in Seoul over the study period (2001–2014). Regionally, the effects of the long-range transport of pollutants from Beijing and Harbin-Changchun on air quality in Seoul have become more significant over this period.

Original language	English
Pages (from-to)	33-44
Number of pages	12
Journal	Atmospheric Environment
Volume	150
DOIs	https://doi.org/10.1016/j.atmosenv.2016.11.017
Publication status	Published - 2017 Feb 1

Bibliographical note

Funding Information:
This work was supported by the Korean Ministry of Environment as part of the Eco-Innovation Program of KEITI ( ARQ201204015 ). The authors thank NOAA ARL for providing the HYSPLIT model backward trajectory data; NIER for providing SO 2 , NO 2 , CO, and PM 10 data; NASA and ESA for providing OMI and MODIS data; and NCAR and NASA for providing MOPITT data.

Publisher Copyright:
© 2016 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Environmental Science(all)
Atmospheric Science

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10.1016/j.atmosenv.2016.11.017

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title = "Assessing the effect of long-range pollutant transportation on air quality in Seoul using the conditional potential source contribution function method",

abstract = "It is important to estimate the effects of the long-range transport of atmospheric pollutants for efficient and effective strategies to control air quality. In this study, the contributions of trans-boundary transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul, Korea from 2001 to 2014 were estimated based on the conditional potential source contribution function (CPSCF) method. Eastern China was found to be the major source of trans-boundary pollution in Seoul, but moderate sources were also located in northeastern China. The contribution of long-range transport from Japan was negligible. The spatial distributions of the potential source contribution function (PSCF) values of each pollutant showed reasonable consistency with their emission inventory and satellite products. The PSCF values of SO2 and PM10 from eastern China were higher than those of NO2 and CO. The mean concentrations of SO2, NO2, CO, and PM10 in Seoul for the period from 2001 to 2014 were 5.34, 37.0, and 619.1 ppb, and 57.4 4 μg/m3, respectively. The contributions of long-range transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul were 0.74, 3.4, and 39.0 ppb, and 12.1 μg/m3, respectively, which are 14%, 9%, 6%, and 21% of the mean concentrations, respectively. The annual mean concentrations of SO2 and NO2 followed statistically significant increasing linear trends (0.5 and 1.6 ppb per decade, respectively), whereas the trends in the annual mean concentrations of CO and PM10 were statistically insignificant. The trends in the ratio of the increased concentrations associated with long-range transport to the annual mean concentrations of the pollutants were statistically insignificant. However, the results indicate that the trans-boundary transport of SO2, NO2, CO, and PM10 from eastern China consistently affected air quality in Seoul over the study period (2001–2014). Regionally, the effects of the long-range transport of pollutants from Beijing and Harbin-Changchun on air quality in Seoul have become more significant over this period.",

author = "Ukkyo Jeong and Jhoon Kim and Hanlim Lee and Lee, {Yun Gon}",

note = "Funding Information: This work was supported by the Korean Ministry of Environment as part of the Eco-Innovation Program of KEITI ( ARQ201204015 ). The authors thank NOAA ARL for providing the HYSPLIT model backward trajectory data; NIER for providing SO 2 , NO 2 , CO, and PM 10 data; NASA and ESA for providing OMI and MODIS data; and NCAR and NASA for providing MOPITT data. Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

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AU - Jeong, Ukkyo

AU - Kim, Jhoon

AU - Lee, Hanlim

AU - Lee, Yun Gon

N1 - Funding Information: This work was supported by the Korean Ministry of Environment as part of the Eco-Innovation Program of KEITI ( ARQ201204015 ). The authors thank NOAA ARL for providing the HYSPLIT model backward trajectory data; NIER for providing SO 2 , NO 2 , CO, and PM 10 data; NASA and ESA for providing OMI and MODIS data; and NCAR and NASA for providing MOPITT data. Publisher Copyright: © 2016 Elsevier Ltd

PY - 2017/2/1

Y1 - 2017/2/1

N2 - It is important to estimate the effects of the long-range transport of atmospheric pollutants for efficient and effective strategies to control air quality. In this study, the contributions of trans-boundary transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul, Korea from 2001 to 2014 were estimated based on the conditional potential source contribution function (CPSCF) method. Eastern China was found to be the major source of trans-boundary pollution in Seoul, but moderate sources were also located in northeastern China. The contribution of long-range transport from Japan was negligible. The spatial distributions of the potential source contribution function (PSCF) values of each pollutant showed reasonable consistency with their emission inventory and satellite products. The PSCF values of SO2 and PM10 from eastern China were higher than those of NO2 and CO. The mean concentrations of SO2, NO2, CO, and PM10 in Seoul for the period from 2001 to 2014 were 5.34, 37.0, and 619.1 ppb, and 57.4 4 μg/m3, respectively. The contributions of long-range transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul were 0.74, 3.4, and 39.0 ppb, and 12.1 μg/m3, respectively, which are 14%, 9%, 6%, and 21% of the mean concentrations, respectively. The annual mean concentrations of SO2 and NO2 followed statistically significant increasing linear trends (0.5 and 1.6 ppb per decade, respectively), whereas the trends in the annual mean concentrations of CO and PM10 were statistically insignificant. The trends in the ratio of the increased concentrations associated with long-range transport to the annual mean concentrations of the pollutants were statistically insignificant. However, the results indicate that the trans-boundary transport of SO2, NO2, CO, and PM10 from eastern China consistently affected air quality in Seoul over the study period (2001–2014). Regionally, the effects of the long-range transport of pollutants from Beijing and Harbin-Changchun on air quality in Seoul have become more significant over this period.

AB - It is important to estimate the effects of the long-range transport of atmospheric pollutants for efficient and effective strategies to control air quality. In this study, the contributions of trans-boundary transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul, Korea from 2001 to 2014 were estimated based on the conditional potential source contribution function (CPSCF) method. Eastern China was found to be the major source of trans-boundary pollution in Seoul, but moderate sources were also located in northeastern China. The contribution of long-range transport from Japan was negligible. The spatial distributions of the potential source contribution function (PSCF) values of each pollutant showed reasonable consistency with their emission inventory and satellite products. The PSCF values of SO2 and PM10 from eastern China were higher than those of NO2 and CO. The mean concentrations of SO2, NO2, CO, and PM10 in Seoul for the period from 2001 to 2014 were 5.34, 37.0, and 619.1 ppb, and 57.4 4 μg/m3, respectively. The contributions of long-range transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul were 0.74, 3.4, and 39.0 ppb, and 12.1 μg/m3, respectively, which are 14%, 9%, 6%, and 21% of the mean concentrations, respectively. The annual mean concentrations of SO2 and NO2 followed statistically significant increasing linear trends (0.5 and 1.6 ppb per decade, respectively), whereas the trends in the annual mean concentrations of CO and PM10 were statistically insignificant. The trends in the ratio of the increased concentrations associated with long-range transport to the annual mean concentrations of the pollutants were statistically insignificant. However, the results indicate that the trans-boundary transport of SO2, NO2, CO, and PM10 from eastern China consistently affected air quality in Seoul over the study period (2001–2014). Regionally, the effects of the long-range transport of pollutants from Beijing and Harbin-Changchun on air quality in Seoul have become more significant over this period.

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ER -

Assessing the effect of long-range pollutant transportation on air quality in Seoul using the conditional potential source contribution function method

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