DOI: 10.1016/j.atmosenv.2014.10.024
Scopus记录号: 2-s2.0-84908664514
论文题名: Quantifying the air quality-CO2 tradeoff potential for airports
作者: Ashok A ; , Dedoussi I ; C ; , Yim S ; H ; L ; , Balakrishnan H ; , Barrett S ; R ; H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99 起始页码: 546
结束页码: 555
语种: 英语
英文关键词: Air quality-CO2 tradeoff
; Aircraft engines
; Airports
Scopus关键词: Air pollution
; Air quality
; Aircraft
; Aircraft engines
; Airports
; Climate change
; Combustion
; Engines
; Environmental impact
; Fuels
; Gas emissions
; Gas turbines
; Air quality impacts
; Aircraft movements
; Aircraft surface movements
; Airport surfaces
; Annual average
; Chemistry transport model
; Population exposure
; Regional air quality
; Carbon dioxide
; carbon dioxide
; fuel
; ozone
; air quality
; aircraft emission
; airport
; carbon dioxide
; climate change
; emission control
; fuel consumption
; ozone
; particulate matter
; pollution exposure
; public health
; quantitative analysis
; trade-off
; turbine
; air quality
; aircraft
; airport
; Article
; carbon footprint
; climate change
; combustion
; environmental impact
; gas turbine power
; human
; particle size
; particulate matter
; population exposure
; reduction
; surface property
; United States
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Aircraft movements on the airport surface are responsible for CO2 emissions that contribute to climate change and other emissions that affect air quality and human health. While the potential for optimizing aircraft surface movements to minimize CO2 emissions has been assessed, the implications of CO2 emissions minimization for air quality have not been quantified. In this paper, we identify conditions in which there is a tradeoff between CO2 emissions and population exposure to O3 and secondary PM2.5 - i.e. where decreasing fuel burn (which is directly proportional to CO2 emissions) results in increased exposure. Fuel burn and emissions are estimated as a function of thrust setting for five common gas turbine engines at 34 US airports. Regional air quality impacts, which are dominated by ozone and secondary PM2.5, are computed as a function of airport location and time using the adjoint of the GEOS-Chem chemistry-transport model. Tradeoffs between CO2 emissions and population exposure to PM2.5 and O3 occur between 2-18% and 5-60% of the year, respectively, depending on airport location, engine type, and thrust setting. The total duration of tradeoff conditions is 5-12 times longer at maximum thrust operations (typical for takeoff) relative to 4% thrust operations (typical for taxiing). Per kilogram of additional fuel burn at constant thrust setting during tradeoff conditions, reductions in population exposure to PM2.5 and O3 are 6-13% and 32-1060% of the annual average (positive) population exposure per kilogram fuel burn, where the ranges encompass the medians over the 34 airports. For fuel burn increases due to thrust increases (i.e. for constant operating time), reductions in both PM2.5 and O3 exposure are 1.5-6.4 times larger in magnitude than those due to increasing fuel burn at constant thrust (i.e. increasing operating time). Airports with relatively high population exposure reduction potentials - which occur due to a combination of high duration and magnitude of tradeoff conditions - are identified. Our results are the first to quantify the extent of the tradeoff between CO2 emissions and air quality impacts at airports. This raises the possibility of reducing the air quality impacts of airports beyond minimizing fuel burn and/or optimizing for minimum net environmental impact. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80530
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Laboratory for Aviation and the Environment, Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, United States
Recommended Citation:
Ashok A,, Dedoussi I,C,et al. Quantifying the air quality-CO2 tradeoff potential for airports[J]. Atmospheric Environment,2014-01-01,99