Impacts of biogenic isoprene emission on ozone air quality in the Seoul metropolitan area

Kwang Yeon Lee; Kyung Hwan Kwak; Young Hee Ryu; Sang Hyun Lee; Jong Jin Baik

doi:10.1016/j.atmosenv.2014.07.036

Impacts of biogenic isoprene emission on ozone air quality in the Seoul metropolitan area

Kwang Yeon Lee, Kyung Hwan Kwak, Young Hee Ryu, Sang Hyun Lee, Jong Jin Baik

Department of Atmospheric Sciences

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

Abstract

The impacts of biogenic isoprene emission on ozone (O₃) air quality during an episode under weak synoptic forcing in the Seoul metropolitan area (SMA), Republic of Korea, are investigated using the Community Multiscale Air Quality (CMAQ) modeling system coupled with the Weather Research and Forecasting (WRF) model. Simulations with different biogenic isoprene emission scenarios show that the impact of biogenic isoprene emission on the daily maximum O₃ concentration is as high as 37ppb in the Seoul region. The O₃ concentration in the Seoul region is significantly increased by the biogenic isoprene emission from the surrounding region compared to that from within the Seoul region. In addition, the gas-phase chemistry is found to be the most important process for O₃ concentration in the Seoul region in the presence of the biogenic isoprene emission from the surrounding region. While isoprene is not enough to influence O₃ concentration directly due to its short lifetime, the transport of isoprene oxidation products plays a crucial role in increasing O₃ concentration in the Seoul region. Through the process analysis, peroxy methacryloyl nitrate (MPAN) as well as formaldehyde (HCHO) and acetaldehyde (CCHO) is also identified as the important precursor that links biogenic isoprene emission from the surrounding region to O₃ concentration in the Seoul region. After transported by daytime local circulations, the chemistry of isoprene oxidation products contributes to O₃ formation in the Seoul region.

Original language	English
Pages (from-to)	209-219
Number of pages	11
Journal	Atmospheric Environment
Volume	96
DOIs	https://doi.org/10.1016/j.atmosenv.2014.07.036
Publication status	Published - 2014 Oct

Bibliographical note

Funding Information:
The authors are grateful to two anonymous reviewers for providing valuable comments that led to the improvements of the original manuscript. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Ministry of Science, ICT and Future Planning (MSIP) (No. 2011–0017041 ).

All Science Journal Classification (ASJC) codes

Environmental Science(all)
Atmospheric Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.atmosenv.2014.07.036

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title = "Impacts of biogenic isoprene emission on ozone air quality in the Seoul metropolitan area",

abstract = "The impacts of biogenic isoprene emission on ozone (O3) air quality during an episode under weak synoptic forcing in the Seoul metropolitan area (SMA), Republic of Korea, are investigated using the Community Multiscale Air Quality (CMAQ) modeling system coupled with the Weather Research and Forecasting (WRF) model. Simulations with different biogenic isoprene emission scenarios show that the impact of biogenic isoprene emission on the daily maximum O3 concentration is as high as 37ppb in the Seoul region. The O3 concentration in the Seoul region is significantly increased by the biogenic isoprene emission from the surrounding region compared to that from within the Seoul region. In addition, the gas-phase chemistry is found to be the most important process for O3 concentration in the Seoul region in the presence of the biogenic isoprene emission from the surrounding region. While isoprene is not enough to influence O3 concentration directly due to its short lifetime, the transport of isoprene oxidation products plays a crucial role in increasing O3 concentration in the Seoul region. Through the process analysis, peroxy methacryloyl nitrate (MPAN) as well as formaldehyde (HCHO) and acetaldehyde (CCHO) is also identified as the important precursor that links biogenic isoprene emission from the surrounding region to O3 concentration in the Seoul region. After transported by daytime local circulations, the chemistry of isoprene oxidation products contributes to O3 formation in the Seoul region.",

author = "Lee, {Kwang Yeon} and Kwak, {Kyung Hwan} and Ryu, {Young Hee} and Lee, {Sang Hyun} and Baik, {Jong Jin}",

note = "Funding Information: The authors are grateful to two anonymous reviewers for providing valuable comments that led to the improvements of the original manuscript. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Ministry of Science, ICT and Future Planning (MSIP) (No. 2011–0017041 ).",

year = "2014",

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doi = "10.1016/j.atmosenv.2014.07.036",

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AU - Lee, Kwang Yeon

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AU - Ryu, Young Hee

AU - Lee, Sang Hyun

AU - Baik, Jong Jin

N1 - Funding Information: The authors are grateful to two anonymous reviewers for providing valuable comments that led to the improvements of the original manuscript. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Ministry of Science, ICT and Future Planning (MSIP) (No. 2011–0017041 ).

PY - 2014/10

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N2 - The impacts of biogenic isoprene emission on ozone (O3) air quality during an episode under weak synoptic forcing in the Seoul metropolitan area (SMA), Republic of Korea, are investigated using the Community Multiscale Air Quality (CMAQ) modeling system coupled with the Weather Research and Forecasting (WRF) model. Simulations with different biogenic isoprene emission scenarios show that the impact of biogenic isoprene emission on the daily maximum O3 concentration is as high as 37ppb in the Seoul region. The O3 concentration in the Seoul region is significantly increased by the biogenic isoprene emission from the surrounding region compared to that from within the Seoul region. In addition, the gas-phase chemistry is found to be the most important process for O3 concentration in the Seoul region in the presence of the biogenic isoprene emission from the surrounding region. While isoprene is not enough to influence O3 concentration directly due to its short lifetime, the transport of isoprene oxidation products plays a crucial role in increasing O3 concentration in the Seoul region. Through the process analysis, peroxy methacryloyl nitrate (MPAN) as well as formaldehyde (HCHO) and acetaldehyde (CCHO) is also identified as the important precursor that links biogenic isoprene emission from the surrounding region to O3 concentration in the Seoul region. After transported by daytime local circulations, the chemistry of isoprene oxidation products contributes to O3 formation in the Seoul region.

AB - The impacts of biogenic isoprene emission on ozone (O3) air quality during an episode under weak synoptic forcing in the Seoul metropolitan area (SMA), Republic of Korea, are investigated using the Community Multiscale Air Quality (CMAQ) modeling system coupled with the Weather Research and Forecasting (WRF) model. Simulations with different biogenic isoprene emission scenarios show that the impact of biogenic isoprene emission on the daily maximum O3 concentration is as high as 37ppb in the Seoul region. The O3 concentration in the Seoul region is significantly increased by the biogenic isoprene emission from the surrounding region compared to that from within the Seoul region. In addition, the gas-phase chemistry is found to be the most important process for O3 concentration in the Seoul region in the presence of the biogenic isoprene emission from the surrounding region. While isoprene is not enough to influence O3 concentration directly due to its short lifetime, the transport of isoprene oxidation products plays a crucial role in increasing O3 concentration in the Seoul region. Through the process analysis, peroxy methacryloyl nitrate (MPAN) as well as formaldehyde (HCHO) and acetaldehyde (CCHO) is also identified as the important precursor that links biogenic isoprene emission from the surrounding region to O3 concentration in the Seoul region. After transported by daytime local circulations, the chemistry of isoprene oxidation products contributes to O3 formation in the Seoul region.

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Impacts of biogenic isoprene emission on ozone air quality in the Seoul metropolitan area

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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