Distinct Ultrafine Particle Profiles Associated with Aircraft and Roadway Traffic

被引:44
作者
Austin, Elena [1 ]
Xiang, Jianbang [1 ]
Gould, Timothy R. [2 ]
Shirai, Jeffry H. [1 ]
Yun, Sukyong [2 ]
Yost, Michael G. [1 ]
Larson, Timothy, V [1 ]
Seto, Edmund [1 ]
机构
[1] Univ Washington, Dept Environm & Occupat Hlth Sci, Seattle, WA 98195 USA
[2] Univ Washington, Dept Civil & Environm Engn, Seattle, WA 98195 USA
关键词
Air quality impacts - Aircraft flight - Aircraft sources - International airport - Mobile monitoring - Mobile samplings - Spatial impacts - Ultrafine particle;
D O I
10.1021/acs.est.0c05933
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The Mobile ObserVations of Ultrafine Particles study was a two-year project to analyze potential air quality impacts of ultrafine particles (UFPs) from aircraft traffic for communities near an international airport. The study assessed UFP concentrations within 10 miles of the airport in the directions of aircraft flight. Over the course of four seasons, this study conducted a mobile sampling scheme to collect time-resolved measures of UFP, CO2, and black carbon (BC) concentrations, as well as UFP size distributions. Primary findings were that UFPs were associated with both roadway traffic and aircraft sources, with the highest UFP counts found on the major roadway (I-5). Total concentrations of UFPs alone (10-1000 nm) did not distinguish roadway and aircraft features. However, key differences existed in the particle size distribution and the black carbon concentration for roadway and aircraft features. These differences can help distinguish between the spatial impact of roadway traffic and aircraft UFP emissions using a combination of mobile monitoring and standard statistical methods.
引用
收藏
页码:2847 / 2858
页数:12
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