DOI: 10.1016/j.atmosenv.2019.117116
论文题名: Evaluation of the IMPROVE formulas based on Mie model in the calculation of particle scattering coefficient in an urban atmosphere
作者: Tao J. ; Zhang L. ; Wu Y. ; Zhang Z.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 222 语种: 英语
英文关键词: Atmospheric aerosols
; Efficiency
; Nitrogen compounds
; Size distribution
; Chemical compositions
; Chemical species
; Mass concentration
; Mass scattering efficiency
; Measured values
; Particle scattering
; Urban atmospheres
; Urban environments
; Uncertainty analysis
; aerosol composition
; chemical mass balance
; condensation
; droplet
; particle size
; particulate matter
; scattering
; urban atmosphere
; aerosol
; article
; atmosphere
; calculation
; drought
; uncertainty
; urban area
; China
; Guangdong
; Guangzhou
学科: Atmospheric aerosols
; Chemical composition
; Mass scattering efficiency
; Size distribution
; Urban environment
中文摘要: To assess the uncertainties in particle scattering coefficient (bsp) estimated from using the original and revised IMPROVE formulas, particle mass size distribution, bulk PM2.5 and PM10 and their major chemical compositions, and bsp under dry condition were synchronously measured in urban Guangzhou during 2015–2016. The estimated bsp, mass concentrations (Cm), and mass scattering efficiencies (MSEs) of the dominant chemical species in the fine, condensation and droplet modes were compared between those calculated using the original and revised IMPROVE formulas and the Mie model. On annual average, the reconstructed bsp using the original IMPROVE formula, the revised IMPROVE formula, and the Mie model explained 81%, 91%, and 98% of the measured bsp at 550 nm, respectively. The better performance of the Mie model than the original and revised IMPROVE formula in the reconstructed bsp was mainly due to the inclusion of the unidentified chemical species which explained 14% of the measured bsp at 550 nm. The estimated percentage contributions of the dominant chemical species to the measured bsp differed by < 3% in most cases, except for (NH4)2SO4 between the Mie model and the revised IMPROVE formula (6%). By including the unidentified chemical species in the revised IMPROVE formula can best reconstructed bsp to within 5% of the measured value. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161078
Appears in Collections: 气候变化与战略
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作者单位: South China Institute of Environmental Sciences, Ministry of Ecology and Environmental, Guangzhou, China; Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, Canada; RCE-TEA, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; The Key Laboratory of Water and Air Pollution Control of Guangdong Province, Guangzhou, China
Recommended Citation:
Tao J.,Zhang L.,Wu Y.,et al. Evaluation of the IMPROVE formulas based on Mie model in the calculation of particle scattering coefficient in an urban atmosphere[J]. Atmospheric Environment,2020-01-01,222