View in EDS

Study on emission characteristics and influencing factors of aircraft exhaust: Based on systematic review and meta-analysis.

Saved in:
Bibliographic Details
Title: Study on emission characteristics and influencing factors of aircraft exhaust: Based on systematic review and meta-analysis.
Authors: Zhao, Xinyue1 (AUTHOR), Wang, Yongyue1 (AUTHOR), Liu, Huan1,2 (AUTHOR) liu_env@tsinghua.edu.cn, He, Kebin1,2 (AUTHOR)
Source: Atmospheric Environment. Jun2026, Vol. 375, pN.PAG-N.PAG. 1p.
Subject Terms: *Aircraft exhaust emissions, *Pollutants, *Alternative fuels, Test methods, Exhaust systems, Research methodology, Thrust
Abstract: Global commercial aviation growth has made aircraft exhaust a core source of airport-area air pollution. Despite ICAO's EEDB on conventional pollutants, emissions are regulated by multiple factors, with sampling variations reducing emission index comparability and leaving organic component gaps. This study integrates engine test and plume sampling data via systematic review and meta-analysis, revealing differential impacts of thrust, testing methods, and fuel types. CO and HC peak at 52.04 g/kg and 11.02 g/kg during idle, declining with thrust; NO x and PM reach 22.75 g/kg and 147.74 mg/kg at takeoff, with particle number concentration bottoming at 2.61 × 1015/kg during climb. Testing method differences cause a 2.5-fold deviation in key pollutant emission factors, reflecting exhaust's secondary atmospheric transformation. Jet A-1 shows lower PN emissions than Jet A; blending sustainable aviation fuel with conventional fuel yields limited primary pollutant improvements. Organic component studies indicate idle phase contributes ∼70% of organic emissions, while high-thrust phases are alkane/alkene-dominated. Gaps exist in takeoff-phase IVOC data, full SAF emission characteristics, and testing standardization. This study supports improved emission testing, refined inventories, and airport emission reduction policies. • First synthesis of aircraft emission factors integrating 786 data points from 60 engine and plume tests across all LTO phases, establishing the most comprehensive dataset to date. • Quantified impacts of key factors on conventional pollutants: (i) thrust dependence—CO and HC decrease by ∼99% while NO x and PM increase up to 7-fold with increasing power, with PN exhibiting a U-shaped trend; (ii) testing methods—engine tests yield higher CO, while plume sampling captures higher PN due to atmospheric transformation; (iii) fuel effects—Jet A-1 shows lower PN than Jet A, but SAF blends offer limited reduction in primary pollutants. • Idle phase dominates organic emissions with alkanes/alkenes prevailing; IVOC data during takeoff remain critically scarce, highlighting priority research needs. [ABSTRACT FROM AUTHOR]
Copyright of Atmospheric Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: GreenFILE
FullText Text:
  Availability: 0
Header DbId: 8gh
DbLabel: GreenFILE
An: 193173008
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Study on emission characteristics and influencing factors of aircraft exhaust: Based on systematic review and meta-analysis.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Xinyue%22">Zhao, Xinyue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yongyue%22">Wang, Yongyue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Huan%22">Liu, Huan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> liu_env@tsinghua.edu.cn</i><br /><searchLink fieldCode="AR" term="%22He%2C+Kebin%22">He, Kebin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Atmospheric+Environment%22">Atmospheric Environment</searchLink>. Jun2026, Vol. 375, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Aircraft+exhaust+emissions%22">Aircraft exhaust emissions</searchLink><br />*<searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br />*<searchLink fieldCode="DE" term="%22Alternative+fuels%22">Alternative fuels</searchLink><br /><searchLink fieldCode="DE" term="%22Test+methods%22">Test methods</searchLink><br /><searchLink fieldCode="DE" term="%22Exhaust+systems%22">Exhaust systems</searchLink><br /><searchLink fieldCode="DE" term="%22Research+methodology%22">Research methodology</searchLink><br /><searchLink fieldCode="DE" term="%22Thrust%22">Thrust</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Global commercial aviation growth has made aircraft exhaust a core source of airport-area air pollution. Despite ICAO's EEDB on conventional pollutants, emissions are regulated by multiple factors, with sampling variations reducing emission index comparability and leaving organic component gaps. This study integrates engine test and plume sampling data via systematic review and meta-analysis, revealing differential impacts of thrust, testing methods, and fuel types. CO and HC peak at 52.04 g/kg and 11.02 g/kg during idle, declining with thrust; NO x and PM reach 22.75 g/kg and 147.74 mg/kg at takeoff, with particle number concentration bottoming at 2.61 × 1015/kg during climb. Testing method differences cause a 2.5-fold deviation in key pollutant emission factors, reflecting exhaust's secondary atmospheric transformation. Jet A-1 shows lower PN emissions than Jet A; blending sustainable aviation fuel with conventional fuel yields limited primary pollutant improvements. Organic component studies indicate idle phase contributes ∼70% of organic emissions, while high-thrust phases are alkane/alkene-dominated. Gaps exist in takeoff-phase IVOC data, full SAF emission characteristics, and testing standardization. This study supports improved emission testing, refined inventories, and airport emission reduction policies. • First synthesis of aircraft emission factors integrating 786 data points from 60 engine and plume tests across all LTO phases, establishing the most comprehensive dataset to date. • Quantified impacts of key factors on conventional pollutants: (i) thrust dependence—CO and HC decrease by ∼99% while NO x and PM increase up to 7-fold with increasing power, with PN exhibiting a U-shaped trend; (ii) testing methods—engine tests yield higher CO, while plume sampling captures higher PN due to atmospheric transformation; (iii) fuel effects—Jet A-1 shows lower PN than Jet A, but SAF blends offer limited reduction in primary pollutants. • Idle phase dominates organic emissions with alkanes/alkenes prevailing; IVOC data during takeoff remain critically scarce, highlighting priority research needs. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Atmospheric Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=193173008
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.atmosenv.2026.121997
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Aircraft exhaust emissions
        Type: general
      – SubjectFull: Pollutants
        Type: general
      – SubjectFull: Alternative fuels
        Type: general
      – SubjectFull: Test methods
        Type: general
      – SubjectFull: Exhaust systems
        Type: general
      – SubjectFull: Research methodology
        Type: general
      – SubjectFull: Thrust
        Type: general
    Titles:
      – TitleFull: Study on emission characteristics and influencing factors of aircraft exhaust: Based on systematic review and meta-analysis.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Zhao, Xinyue
      – PersonEntity:
          Name:
            NameFull: Wang, Yongyue
      – PersonEntity:
          Name:
            NameFull: Liu, Huan
      – PersonEntity:
          Name:
            NameFull: He, Kebin
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 15
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 13522310
          Numbering:
            – Type: volume
              Value: 375
          Titles:
            – TitleFull: Atmospheric Environment
              Type: main
ResultId 1