Aviation impact on air quality present day and mid-century simulated in the Community Atmosphere Model (CAM)

Daniel Phoenix, Arezoo Khodayari, Donald J Wuebbles, Kevin Stewart

Research output: Contribution to journalArticle

Abstract

The projected increase in global air traffic raises concerns about the potential impact aviation emissions have on climate and air quality. Previous studies have shown that aircraft non-landing and take-off (non-LTO) emissions (emitted above 1 km) can affect surface air quality by increasing concentrations of ozone (O3) and fine particles (PM2.5). Here, we examine the global impacts of aviation non-LTO emissions on surface air quality for present day and mid-century (2050) using the Community Atmosphere Model with Chemistry, version 5 (CAM5). An important update in CAM5 over previous versions is the modal aerosol module (MAM), which provides a more accurate aerosol representation. Additionally we evaluate of the aviation impact at mid-century with two fuel scenarios, a fossil fuel (SC1) and a biofuel (Alt). Monthly-mean results from the present day simulations show a northern hemisphere (NH) mean surface O3 increase of 1.3 ppb (2.7% of the background) and a NH maximum surface PM2.5 increase of 1.4 μg/m3 in January. Mid-century simulations show slightly greater surface O3 increases (mean of 1.9 ppb (4.2%) for both scenarios) and greater PM2.5 increases (maximum of 3.5 μg/m3 for SC1 and 2.2 μg/m3 for Alt). While these perturbations do not significantly increase the frequency of extreme air quality events (increase is less than 1.5%), they do contribute to the background concentrations of O3 and PM2.5, making it easier for urban areas to surpass these standards.

LanguageEnglish (US)
Pages125-132
Number of pages8
JournalAtmospheric Environment
Volume196
DOIs
StatePublished - Jan 1 2019

Fingerprint

air quality
atmosphere
Northern Hemisphere
aerosol
biofuel
fossil fuel
simulation
aircraft
urban area
ozone
perturbation
climate

Keywords

  • Air quality
  • Aviation emissions
  • Non-landing and take-off emissions

ASJC Scopus subject areas

  • Environmental Science(all)
  • Atmospheric Science

Cite this

Aviation impact on air quality present day and mid-century simulated in the Community Atmosphere Model (CAM). / Phoenix, Daniel; Khodayari, Arezoo; Wuebbles, Donald J; Stewart, Kevin.

In: Atmospheric Environment, Vol. 196, 01.01.2019, p. 125-132.

Research output: Contribution to journalArticle

@article{2bf06d2609d2493fa9fadf11c0450500,
title = "Aviation impact on air quality present day and mid-century simulated in the Community Atmosphere Model (CAM)",
abstract = "The projected increase in global air traffic raises concerns about the potential impact aviation emissions have on climate and air quality. Previous studies have shown that aircraft non-landing and take-off (non-LTO) emissions (emitted above 1 km) can affect surface air quality by increasing concentrations of ozone (O3) and fine particles (PM2.5). Here, we examine the global impacts of aviation non-LTO emissions on surface air quality for present day and mid-century (2050) using the Community Atmosphere Model with Chemistry, version 5 (CAM5). An important update in CAM5 over previous versions is the modal aerosol module (MAM), which provides a more accurate aerosol representation. Additionally we evaluate of the aviation impact at mid-century with two fuel scenarios, a fossil fuel (SC1) and a biofuel (Alt). Monthly-mean results from the present day simulations show a northern hemisphere (NH) mean surface O3 increase of 1.3 ppb (2.7{\%} of the background) and a NH maximum surface PM2.5 increase of 1.4 μg/m3 in January. Mid-century simulations show slightly greater surface O3 increases (mean of 1.9 ppb (4.2{\%}) for both scenarios) and greater PM2.5 increases (maximum of 3.5 μg/m3 for SC1 and 2.2 μg/m3 for Alt). While these perturbations do not significantly increase the frequency of extreme air quality events (increase is less than 1.5{\%}), they do contribute to the background concentrations of O3 and PM2.5, making it easier for urban areas to surpass these standards.",
keywords = "Air quality, Aviation emissions, Non-landing and take-off emissions",
author = "Daniel Phoenix and Arezoo Khodayari and Wuebbles, {Donald J} and Kevin Stewart",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.atmosenv.2018.10.005",
language = "English (US)",
volume = "196",
pages = "125--132",
journal = "Atmospheric Environment",
issn = "1352-2310",

}

TY - JOUR

T1 - Aviation impact on air quality present day and mid-century simulated in the Community Atmosphere Model (CAM)

AU - Phoenix, Daniel

AU - Khodayari, Arezoo

AU - Wuebbles, Donald J

AU - Stewart, Kevin

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The projected increase in global air traffic raises concerns about the potential impact aviation emissions have on climate and air quality. Previous studies have shown that aircraft non-landing and take-off (non-LTO) emissions (emitted above 1 km) can affect surface air quality by increasing concentrations of ozone (O3) and fine particles (PM2.5). Here, we examine the global impacts of aviation non-LTO emissions on surface air quality for present day and mid-century (2050) using the Community Atmosphere Model with Chemistry, version 5 (CAM5). An important update in CAM5 over previous versions is the modal aerosol module (MAM), which provides a more accurate aerosol representation. Additionally we evaluate of the aviation impact at mid-century with two fuel scenarios, a fossil fuel (SC1) and a biofuel (Alt). Monthly-mean results from the present day simulations show a northern hemisphere (NH) mean surface O3 increase of 1.3 ppb (2.7% of the background) and a NH maximum surface PM2.5 increase of 1.4 μg/m3 in January. Mid-century simulations show slightly greater surface O3 increases (mean of 1.9 ppb (4.2%) for both scenarios) and greater PM2.5 increases (maximum of 3.5 μg/m3 for SC1 and 2.2 μg/m3 for Alt). While these perturbations do not significantly increase the frequency of extreme air quality events (increase is less than 1.5%), they do contribute to the background concentrations of O3 and PM2.5, making it easier for urban areas to surpass these standards.

AB - The projected increase in global air traffic raises concerns about the potential impact aviation emissions have on climate and air quality. Previous studies have shown that aircraft non-landing and take-off (non-LTO) emissions (emitted above 1 km) can affect surface air quality by increasing concentrations of ozone (O3) and fine particles (PM2.5). Here, we examine the global impacts of aviation non-LTO emissions on surface air quality for present day and mid-century (2050) using the Community Atmosphere Model with Chemistry, version 5 (CAM5). An important update in CAM5 over previous versions is the modal aerosol module (MAM), which provides a more accurate aerosol representation. Additionally we evaluate of the aviation impact at mid-century with two fuel scenarios, a fossil fuel (SC1) and a biofuel (Alt). Monthly-mean results from the present day simulations show a northern hemisphere (NH) mean surface O3 increase of 1.3 ppb (2.7% of the background) and a NH maximum surface PM2.5 increase of 1.4 μg/m3 in January. Mid-century simulations show slightly greater surface O3 increases (mean of 1.9 ppb (4.2%) for both scenarios) and greater PM2.5 increases (maximum of 3.5 μg/m3 for SC1 and 2.2 μg/m3 for Alt). While these perturbations do not significantly increase the frequency of extreme air quality events (increase is less than 1.5%), they do contribute to the background concentrations of O3 and PM2.5, making it easier for urban areas to surpass these standards.

KW - Air quality

KW - Aviation emissions

KW - Non-landing and take-off emissions

UR - http://www.scopus.com/inward/record.url?scp=85054928631&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85054928631&partnerID=8YFLogxK

U2 - 10.1016/j.atmosenv.2018.10.005

DO - 10.1016/j.atmosenv.2018.10.005

M3 - Article

VL - 196

SP - 125

EP - 132

JO - Atmospheric Environment

T2 - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

ER -