DOI: 10.1016/j.atmosenv.2016.12.005
Scopus记录号: 2-s2.0-85008711869
论文题名: Emission rates of particle number, mass and black carbon by the Los Angeles International Airport (LAX) and its impact on air quality in Los Angeles
作者: Shirmohammadi F ; , Sowlat M ; H ; , Hasheminassab S ; , Saffari A ; , Ban-Weiss G ; , Sioutas C
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 151 起始页码: 82
结束页码: 93
语种: 英语
英文关键词: Aircraft emissions
; Emission factor
; LAX airport
; Ultrafine particles
; Vehicular emissions
Scopus关键词: Air quality
; Fuels
; Landing
; Particulate emissions
; Pollution
; Aircraft emissions
; Emission factors
; Los angeles international airports
; Mass concentration
; Particle number emission
; Take-offs and landings
; Ultrafine particle
; Vehicular emission
; Airports
; black carbon
; fuel
; air quality
; aircraft emission
; airport
; atmospheric pollution
; black carbon
; concentration (composition)
; emission inventory
; motorway
; particle size
; particulate matter
; pollution monitoring
; traffic emission
; westerly
; air monitoring
; air particle control
; air pollutant
; air quality
; aircraft
; airport
; Article
; California
; controlled study
; mass
; priority journal
; reduction (chemistry)
; seashore
; wind
; California
; Los Angeles [California]
; 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: This study describes a series of air monitoring measurements of particle number (PN), black carbon (BC) and PM2.5mass concentrations in the vicinity of the Los Angeles International Airport (LAX) (roughly 150 m downwind of the LAX's south runways) as well as on-road measurements of the aforementioned pollutants using a mobile platform on three major freeways (i.e., I-110, I-105, and I-405) during May–July 2016. All measurements were performed in the “impact zone” of LAX with the predominant westerly winds from coast to inland. The overall impact of aircraft emissions from the LAX airport and its facilities in comparison to vehicular emissions from freeways on air quality was evaluated on a local scale (i.e. areas in the vicinity of the airport). PN concentration was, on average, 4.1 ± 1.2 times greater at the LAX site than on the studied freeways. Particle number emission factors for takeoffs and landings were comparable, with average values of 8.69×1015particles/kg fuel and 8.16×1015particles/kg fuel, respectively, and indicated a nearly 4-fold statistically significant reduction in PN emission factors for takeoffs during the past decade. BC emission factors were 0.12 ± 0.02 and 0.11 ± 0.01 g/kg fuel during takeoffs and landings, respectively. Additionally, the mean PM2.5emission factor values for takeoffs and landings were also comparable, with values of 0.38 ± 0.04 and 0.40 ± 0.05 g/kg fuel, respectively. Within the impact zone of the airport, an area of roughly 100 km2downwind of the LAX, measurements indicated that the LAX daily contributions to PN, BC, and PM2.5were approximately 11, 2.5, and 1.4 times greater than those from the three surrounding freeways. These results underscore the significance of the LAX airport as a major source of pollution within its zone of impact comparing to freeway emissions. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82810
Appears in Collections: 气候变化事实与影响
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作者单位: University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, United States
Recommended Citation:
Shirmohammadi F,, Sowlat M,H,et al. Emission rates of particle number, mass and black carbon by the Los Angeles International Airport (LAX) and its impact on air quality in Los Angeles[J]. Atmospheric Environment,2017-01-01,151