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Emissions from aircraft can have a disproportionate impact on atmospheric chemistry compared to other anthropogenic emissions since the bulk of the emissions is at altitude where there are fewer emission sources, and the emitted species have longer atmospheric lifetimes. Using the global version of GEM-MACH, the operational forecasting model for Environment and Climate Change Canada, this paper investigates the impact of non-CO2 emissions from the aviation sector on surface air quality due to local emissions and the downward transport of emissions from aloft. The focus will be on traditional pollutants emissions such as ozone, NOx and particulate matter.

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The Impact of Emissions from the Aviation Industry on Air Quality Using the Global GEM-MACH

  • 会议论文

  • 发表日期：

    2026年

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  • Diane Pendlebury,
  • Zhuanshi He,
  • Alex Lupu,
  • Jack Chen,
  • Junhua Zhang,
  • Wanmin Gong

摘要

Emissions from aircraft can have a disproportionate impact on atmospheric chemistry compared to other anthropogenic emissions since the bulk of the emissions is at altitude where there are fewer emission sources, and the emitted species have longer atmospheric lifetimes. Using the global version of GEM-MACH, the operational forecasting model for Environment and Climate Change Canada, this paper investigates the impact of non-CO2 emissions from the aviation sector on surface air quality due to local emissions and the downward transport of emissions from aloft. The focus will be on traditional pollutants emissions such as ozone, NOx and particulate matter.