DOI: 10.1016/j.atmosenv.2018.03.023
Scopus记录号: 2-s2.0-85043784750
论文题名: Assessing and reducing fine and ultrafine particles inside Los Angeles taxis
作者: Yu N ; , Shu S ; , Lin Y ; , Zhu Y
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 181 起始页码: 155
结束页码: 163
语种: 英语
英文关键词: Exposure
; I/O ratio
; In-cabin
; PM2.5
; Taxi
; Ultrafine particles
Scopus关键词: Taxicabs
; Exposure
; In-cabin
; PM2.5
; Taxi
; Ultrafine particle
; Air filters
; atmospheric pollution
; concentration (composition)
; indoor air
; mitigation
; particle size
; particulate matter
; pollution exposure
; pollution monitoring
; taxi transport
; ventilation
; air conditioning
; air pollutant
; Article
; California
; car
; car driving
; driver
; environmental temperature
; exhaust gas
; highway
; human
; occupational exposure
; particulate matter
; priority journal
; work environment
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: Taxi drivers and passengers are exposed to high levels of traffic-related air pollutants, but their exposures to fine (PM2.5) and ultrafine particles (UFPs) and related mitigation strategies are rarely explored. In this study, UFP and PM2.5 concentrations were monitored concurrently inside and outside of 22 taxis under different ventilation and mitigation conditions. Under realistic working conditions (no mitigation; NM), the average UFP and PM2.5 levels inside taxis were 1.46 × 104 particles/cm3 and 26 μg/m3, respectively. When the taxi ventilation was set to outside air mode and the windows kept closed, in-cabin UFP and PM2.5 concentrations are significantly associated with on-road concentrations, driving speed, and cabin air filter usage. The average in-cabin to on-roadway (I/O) ratios for UFP and PM2.5 were reduced from 0.60 to 0.75 under NM, to 0.47 and 0.52 under the most stringent mitigation strategy of keeping the windows closed and operating a high efficiency cabin air filter (WC + HECA). Among all tested taxi models, Toyota Prius exhibited the lowest UFP and PM2.5 I/O ratios under WC + HECA. Switching cabin air filters from the originally equipped manufacturer filter (OEM) to a HECA filter reduced the UFP and PM2.5 I/O ratios most effectively in Toyota Prius taxis as well. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82898
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental Health Sciences, Jonathan and Karin Fielding School of Public Health, University of California Los AngelesCA, United States
Recommended Citation:
Yu N,, Shu S,, Lin Y,et al. Assessing and reducing fine and ultrafine particles inside Los Angeles taxis[J]. Atmospheric Environment,2018-01-01,181