SCOPE11 Method for Estimating Aircraft Black Carbon Mass and Particle Number Emissions
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main_paper (final).pdf
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Accepted version
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Description
Supporting info for SCOPE11 Method for Estimating Aircraft Black Carbon Mass and Particle Number Emissions
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Adobe PDF
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Author(s)
Agarwal, Akshat
Speth, Raymond L
Fritz, Thibaud M.
Jacob, S. Daniel
Rindlisbacher, Theo
Iovinelli, Ralph
Owen, Bethan
Miake-Lye, Richard C.
Sabnis, Jayant S.
Barrett, Steven R. H.
Date Issued
January 2019
Journal
Environmental Science and Technology
Publisher
American Chemical Society (ACS)
Citation
Agarwal, Akshat et al. "SCOPE11 Method for Estimating Aircraft Black Carbon Mass and Particle Number Emissions." Environmental Science and Technology 53, 3 (January 2019): 1364-1373 © 2019 American Chemical Society
Version
Author's final manuscript
Abstract
Black carbon (BC) emissions from aircraft engines lead to an increase in the atmospheric burden of fine particulate matter (PM[subscript 2.5]). Exposure to PM[subscript 2.5] from sources, including aviation, is associated with an increased risk of premature mortality, and BC suspended in the atmosphere has a warming impact on the climate. BC particles emitted from aircraft also serve as nuclei for contrail ice particles, which are a major component of aviation's climate impact. To facilitate the evaluation of these impacts, we have developed a method to estimate BC mass and number emissions at the engine exit plane, referred to as the Smoke Correlation for Particle Emissions-CAEP11 (SCOPE11). We use a data set consisting of SN-BC mass concentration pairs, collected using certification-compliant measurement systems, to develop a new relationship between smoke number (SN) and BC mass concentration. In addition, we use a complementary data set to estimate measurement system loss correction factors and particle geometric mean diameters to estimate BC number emissions at the engine exit plane. Using this method, we estimate global BC emissions from aircraft landing and takeoff (LTO) operations for 2015 to be 0.74 Gg/year (95% CI = 0.64-0.84) and 2.85 × 10[superscript 25] particles/year (95% CI = 1.86-4.49 × 10[superscript 25]).
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1021/acs.est.8b04060
