| Title | Aviation Impact on Air Quality Present Day and Mid-Century Simulated in the Community Atmosphere Model (CAM) |
|---|---|
| Record ID | 81742 |
| Personal Name Creator |
Phoenix, Daniel; Khodayari, Arezoo; Wuebbles, Donald J.; Stewart, Kevin |
| Corporate Creator | United States. Department of Transportation. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment; University of Illinois at Urbana-Champaign |
| Corporate Contributor |
United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy |
| Publisher | Elsevier |
| Publication Date | 20181000 |
| Language | English |
| 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. |
| Public Note | This manuscript is made available under the Elsevier user license https://www.elsevier.com/open-access/userlicense/1.0/ |
| Rosap ID | dot:56977 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/56977 |
| TRT Terms | Pollutants; Aviation; Air quality; Landing; Takeoff; Aerosols |
| General Subjects | Non-landing and take-off emissions; PARTNER; ASCENT |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1780702 |
| Contract Number | 13-C-AJFE-UI- |
| Report Number | j.atmosenv.2018.10.005 |
| Resource type | Manuscript |
| URL | https://ntlrepository.blob.core.windows.net/lib/81000/81700/81742/22-j.atmosenv.2018.10.005_pub_Aviation_impact.pdf |
| Format | |
| Database | NTL Digital Repository |