Ozone pollution over China and India: seasonality and sources
<p>A regional fully coupled meteorology–chemistry model, Weather Research and Forecasting model with Chemistry (WRF-Chem), was employed to study the seasonality of ozone (<span class="inline-formula">O<sub>3</sub></span>) pollution and its sources in both Chin...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2020-04-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://www.atmos-chem-phys.net/20/4399/2020/acp-20-4399-2020.pdf |
| _version_ | 1818296005030838272 |
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| author | M. Gao M. Gao M. Gao J. Gao B. Zhu R. Kumar X. Lu S. Song Y. Zhang B. Jia P. Wang G. Beig J. Hu Q. Ying H. Zhang P. Sherman M. B. McElroy M. B. McElroy |
| author_facet | M. Gao M. Gao M. Gao J. Gao B. Zhu R. Kumar X. Lu S. Song Y. Zhang B. Jia P. Wang G. Beig J. Hu Q. Ying H. Zhang P. Sherman M. B. McElroy M. B. McElroy |
| author_sort | M. Gao |
| collection | DOAJ |
| description | <p>A regional fully coupled meteorology–chemistry model, Weather Research and
Forecasting model with Chemistry (WRF-Chem), was employed to study the
seasonality of ozone (<span class="inline-formula">O<sub>3</sub></span>) pollution and its sources in both China and
India. Observations and model results suggest that <span class="inline-formula">O<sub>3</sub></span> in the North
China Plain (NCP), Yangtze River Delta (YRD), Pearl River Delta (PRD), and
India exhibit distinctive seasonal features, which are linked to the
influence of summer monsoons. Through a factor separation approach, we
examined the sensitivity of <span class="inline-formula">O<sub>3</sub></span> to individual anthropogenic, biogenic,
and biomass burning emissions. We found that summer <span class="inline-formula">O<sub>3</sub></span> formation in
China is more sensitive to industrial and biogenic sources than to other
source sectors, while the transportation and biogenic sources are more
important in all seasons for India. Tagged simulations suggest that local
sources play an important role in the formation of the summer <span class="inline-formula">O<sub>3</sub></span> peak
in the NCP, but sources from Northwest China should not be neglected to
control summer <span class="inline-formula">O<sub>3</sub></span> in the NCP. For the YRD region, prevailing winds and
cleaner air from the ocean in summer lead to reduced transport from polluted
regions, and the major source region in addition to local sources is
Southeast China. For the PRD region, the upwind region is replaced by
contributions from polluted PRD as autumn approaches, leading to an autumn
peak. The major upwind regions in autumn for the PRD are YRD (11 %) and
Southeast China (10 %). For India, sources in North India are more
important than sources in the south. These analyses emphasize the relative
importance of source sectors and regions as they change with seasons,
providing important implications for <span class="inline-formula">O<sub>3</sub></span> control strategies.</p> |
| first_indexed | 2024-12-13T03:56:39Z |
| format | Article |
| id | doaj.art-c2fc921cac9c42bb9ad13bab3100ace9 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-13T03:56:39Z |
| publishDate | 2020-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-c2fc921cac9c42bb9ad13bab3100ace92022-12-22T00:00:36ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242020-04-01204399441410.5194/acp-20-4399-2020Ozone pollution over China and India: seasonality and sourcesM. Gao0M. Gao1M. Gao2J. Gao3B. Zhu4R. Kumar5X. Lu6S. Song7Y. Zhang8B. Jia9P. Wang10G. Beig11J. Hu12Q. Ying13H. Zhang14P. Sherman15M. B. McElroy16M. B. McElroy17Department of Geography, State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, ChinaJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USAKey Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing, ChinaDepartment of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, ChinaKey Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing, ChinaNational Center for Atmospheric Research, Boulder, CO, USAJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USAJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USAJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USADepartment of Geography, State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong SAR, ChinaZachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX, USAIndian Institute of Tropical Meteorology, Pune, IndiaSchool of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing, ChinaZachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX, USADepartment of Environmental Science and Engineering, Fudan University, Shanghai, ChinaDepartment of Earth and Planetary Sciences, Harvard University, Cambridge, MA, USAJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USADepartment of Earth and Planetary Sciences, Harvard University, Cambridge, MA, USA<p>A regional fully coupled meteorology–chemistry model, Weather Research and Forecasting model with Chemistry (WRF-Chem), was employed to study the seasonality of ozone (<span class="inline-formula">O<sub>3</sub></span>) pollution and its sources in both China and India. Observations and model results suggest that <span class="inline-formula">O<sub>3</sub></span> in the North China Plain (NCP), Yangtze River Delta (YRD), Pearl River Delta (PRD), and India exhibit distinctive seasonal features, which are linked to the influence of summer monsoons. Through a factor separation approach, we examined the sensitivity of <span class="inline-formula">O<sub>3</sub></span> to individual anthropogenic, biogenic, and biomass burning emissions. We found that summer <span class="inline-formula">O<sub>3</sub></span> formation in China is more sensitive to industrial and biogenic sources than to other source sectors, while the transportation and biogenic sources are more important in all seasons for India. Tagged simulations suggest that local sources play an important role in the formation of the summer <span class="inline-formula">O<sub>3</sub></span> peak in the NCP, but sources from Northwest China should not be neglected to control summer <span class="inline-formula">O<sub>3</sub></span> in the NCP. For the YRD region, prevailing winds and cleaner air from the ocean in summer lead to reduced transport from polluted regions, and the major source region in addition to local sources is Southeast China. For the PRD region, the upwind region is replaced by contributions from polluted PRD as autumn approaches, leading to an autumn peak. The major upwind regions in autumn for the PRD are YRD (11 %) and Southeast China (10 %). For India, sources in North India are more important than sources in the south. These analyses emphasize the relative importance of source sectors and regions as they change with seasons, providing important implications for <span class="inline-formula">O<sub>3</sub></span> control strategies.</p>https://www.atmos-chem-phys.net/20/4399/2020/acp-20-4399-2020.pdf |
| spellingShingle | M. Gao M. Gao M. Gao J. Gao B. Zhu R. Kumar X. Lu S. Song Y. Zhang B. Jia P. Wang G. Beig J. Hu Q. Ying H. Zhang P. Sherman M. B. McElroy M. B. McElroy Ozone pollution over China and India: seasonality and sources Atmospheric Chemistry and Physics |
| title | Ozone pollution over China and India: seasonality and sources |
| title_full | Ozone pollution over China and India: seasonality and sources |
| title_fullStr | Ozone pollution over China and India: seasonality and sources |
| title_full_unstemmed | Ozone pollution over China and India: seasonality and sources |
| title_short | Ozone pollution over China and India: seasonality and sources |
| title_sort | ozone pollution over china and india seasonality and sources |
| url | https://www.atmos-chem-phys.net/20/4399/2020/acp-20-4399-2020.pdf |
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