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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 | 1352-2310 |
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 |
关键词 | Black carbonOptical methodsParticulate matterRapid analysisReflectance measurement |
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
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/249347 |
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). |
条目包含的文件 | 条目无相关文件。 |
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