气候变化领域集成服务门户(CCPortal): Analysis of black carbon on filters by image-based reflectance

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DOI	10.1016/j.atmosenv.2020.117300
	Analysis of black carbon on filters by image-based reflectance
	Jeronimo M.; Stewart Q.; Weakley A.T.; Giacomo J.; Zhang X.; Hyslop N.; Dillner A.M.; Shupler M.; Brauer M.
发表日期	2020
ISSN	13522310
卷号	223
英文摘要	Black carbon (BC) is an important contributor to global particulate matter emissions. BC is associated with adverse health effects, and an important short-lived climate pollutant. Here, we describe a low cost method of analysis that utilizes images of PTFE filters taken with a digital camera to estimate BC content on filters. This method is compared with two existing optical methods for analyzing BC (Smokestain Reflectance and Hybrid Integrating Plate and Sphere System) as well as the standard chemical analysis method for determining elemental carbon (Thermal-Optical Reflectance). In comparisons of aerosol generated under controlled conditions (using an inverted diffusion flame burner to cover a range of mass loading and reflectance levels) (N = 12) and in field samples collected from residential solid fuel combustion in China and India (N = 50), the image-based method was found to correlate well (normalized RMSE <10% for all comparisons) with existing methods. A correlational analysis of field samples between the optical methods and Fourier-transform infrared spectroscopy indicated that the same functional groups were predominantly responsible for light attenuation in each optical method. This method offers reduced equipment cost, rapid analysis time, and is available at no cost, which may facilitate more measurement of BC where PM2.5 mass concentrations are already measured, especially in low income countries or other sampling efforts with limited resources. © 2020 Elsevier Ltd
英文关键词	Black carbon; Optical methods; Particulate matter; Rapid analysis; Reflectance measurement
学科领域	Carbon; Cost benefit analysis; Fourier transform infrared spectroscopy; Fuels; Image analysis; Optical engineering; Particles (particulate matter); Reflection; Reflectometers; Smoke; Adverse health effects; Black carbon; Correlational analysis; Optical methods; Particulate Matter; Particulate matter emissions; Rapid analysis; Thermal optical reflectance; Chemical analysis; black carbon; fuel; politef; aerosol; black carbon; chemical analysis; concentration (composition); detection method; elemental carbon; light attenuation; measurement method; particulate matter; reflectance; aerosol; air pollution; air quality; Article; calibration; chemical analysis; chemical composition; China; combustion; comparative study; diffusion; flame; Fourier transform infrared spectroscopy; imaging and display; India; particulate matter; priority journal; reflectometry; thermal analysis; urban area; China; India
语种	英语
scopus关键词	Carbon; Cost benefit analysis; Fourier transform infrared spectroscopy; Fuels; Image analysis; Optical engineering; Particles (particulate matter); Reflection; Reflectometers; Smoke; Adverse health effects; Black carbon; Correlational analysis; Optical methods; Particulate Matter; Particulate matter emissions; Rapid analysis; Thermal optical reflectance; Chemical analysis; black carbon; fuel; politef; aerosol; black carbon; chemical analysis; concentration (composition); detection method; elemental carbon; light attenuation; measurement method; particulate matter; reflectance; aerosol; air pollution; air quality; Article; calibration; chemical analysis; chemical composition; China; combustion; comparative study; diffusion; flame; Fourier transform infrared spectroscopy; imaging and display; India; particulate matter; priority journal; reflectometry; thermal analysis; urban area; China; India
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120763
作者单位	School of Population and Public Health, University of British Columbia, Vancouver, British Columbia V6T1Z3, Canada; Air Quality Research Center, University of California – Davis, Davis, CA 95616, United States
推荐引用方式 GB/T 7714	Jeronimo M.,Stewart Q.,Weakley A.T.,et al. Analysis of black carbon on filters by image-based reflectance[J],2020,223.
APA	Jeronimo M..,Stewart Q..,Weakley A.T..,Giacomo J..,Zhang X..,...&Brauer M..(2020).Analysis of black carbon on filters by image-based reflectance.Atmospheric Environment,223.
MLA	Jeronimo M.,et al."Analysis of black carbon on filters by image-based reflectance".Atmospheric Environment 223(2020).