globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2020.117483
论文题名:
Real-time PM10 emission rates from paved roads by measurement of concentrations in the vehicle's wake using on-board sensors part 1. SCAMPER method characterization
作者: Fitz D.R.; Bumiller K.; Bufalino C.; James D.E.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 230
语种: 英语
学科: Emission factors ; Fugitive dust ; Particulate ; Paved road ; PM10 ; Road dust
中文摘要: Based on emission factors derived from the AP-42 algorithm, particulate matter from paved roads has been estimated to be a major source of PM10 of geologic origin. This is an empirical formula based on upwind-downwind measurement of PM10 concentrations and is dependent solely on the silt loading of the pavement and the weight of vehicles. A number of upwind-downwind studies conducted in urban areas to validate this algorithm have been generally inconclusive because the PM10 concentration difference between upwind and downwind often is within the measurement uncertainty. In the approach presented here PM10 concentrations were measured directly behind a moving vehicle in order to improve the measurement sensitivity for estimating the emission rates for vehicles on paved roads. Optical sensors were used to measure PM10 concentrations with a time resolution of approximately 10 s. Sensors were mounted in the front of the vehicle and behind it in the well-mixed wake. A special inlet probe was designed to allow isokinetic sampling under varying speed conditions. As a first approximation the emission rate was calculated by multiplying the PM10 concentration difference between the front and rear of a moving vehicle by the frontal area of the vehicle. This technique is also useful for quickly surveying large areas and for investigating hot spots on roadways caused by greater than normal deposition of PM10 forming debris. The method is designated as SCAMPER: System for the Continuous Aerosol Measurement of Particulate Emissions from Roads. Part I describes SCAMPER development and Part II describes a comprehensive field testing of mobile methods. © 2020 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160357
Appears in Collections:气候变化与战略

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作者单位: College of Engineering-Center for Environmental Research and Technology, University of California, Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States; Department of Civil and Environmental Engineering, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154, United States

Recommended Citation:
Fitz D.R.,Bumiller K.,Bufalino C.,et al. Real-time PM10 emission rates from paved roads by measurement of concentrations in the vehicle's wake using on-board sensors part 1. SCAMPER method characterization[J]. Atmospheric Environment,2020-01-01,230
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