Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-11441-2017 |
Joint measurements of PM2.5 and light-absorptive PM in woodsmoke-dominated ambient and plume environments | |
Zhang, K. Max1; Allen, George2; Yang, Bo1; Chen, Geng1,3; Gu, Jiajun1; Schwab, James4; Felton, Dirk5; Rattigan, Oliver5 | |
2017-09-26 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:18 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | DC, also referred to as Delta-C, measures enhanced light absorption of particulate matter (PM) samples at the near-ultraviolet (UV) range relative to the near-infrared range, which has been proposed previously as a woodsmoke marker due to the presence of enhanced UV light-absorbing materials from wood combustion. In this paper, we further evaluated the applications and limitations of using DC as both a qualitative and semi-quantitative woodsmoke marker via joint continuous measurements of PM2.5 (by nephelometer pDR-1500) and light-absorptive PM (by 2-wavelength and 7-wavelength Aethalometer (R)) in three northeastern US cities/towns including Rutland, VT; Saranac Lake, NY and Ithaca, NY. Residential wood combustion has shown to be the predominant source of wintertime primary PM2 .5 emissions in both Rutland and Saranac Lake, where we conducted ambient measurements. In Ithaca, we performed woodsmoke plume measurements. We compared the pDR-1500 against a FEM PM2.5 sampler (BAM 1020), and identified a close agreement between the two instruments in a woodsmoke-dominated ambient environment. The analysis of seasonal and diurnal trends of DC, black carbon (BC, 880 nm) and PM2.5 concentrations supports the use of DC as an adequate qualitative marker. The strong linear relationships between PM2.5 and DC in both woodsmoke-dominated ambient and plume environments suggest that DC can reasonably serve as a semi-quantitative woodsmoke marker. We propose a DC-based indicator for woodsmoke emission, which has shown to exhibit a relatively strong linear relationship with heating demand. While we observed reproducible PM2.5-DC relationships in similar woodsmoke-dominated ambient environments, those relationships differ significantly with different environments, and among individual woodsmoke sources. Our analysis also indicates the potential for PM2.5-DC relationships to be utilized to distinguish different combustion and operating conditions of woodsmoke sources, and that DC-heating-demand relationships could be adopted to estimate woodsmoke emissions. However, future studies are needed to elucidate those relationships. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411738000004 |
WOS关键词 | BLACK CARBON ; PARTICULATE MATTER ; AETHALOMETER DATA ; ORGANIC-CARBON ; BROWN CARBON ; AEROSOL ; COMBUSTION ; PARTICLES ; EMISSIONS ; BIOMASS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28405 |
专题 | 地球科学 |
作者单位 | 1.Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA; 2.Northeast States Coordinated Air Use Management, Boston, MA USA; 3.Ningbo Univ, Fac Maritime Transportat, Ningbo, Zhejiang, Peoples R China; 4.SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12222 USA; 5.New York State Dept Environm Conservat, Div Air Resources, Albany, NY USA |
推荐引用方式 GB/T 7714 | Zhang, K. Max,Allen, George,Yang, Bo,et al. Joint measurements of PM2.5 and light-absorptive PM in woodsmoke-dominated ambient and plume environments[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(18). |
APA | Zhang, K. Max.,Allen, George.,Yang, Bo.,Chen, Geng.,Gu, Jiajun.,...&Rattigan, Oliver.(2017).Joint measurements of PM2.5 and light-absorptive PM in woodsmoke-dominated ambient and plume environments.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(18). |
MLA | Zhang, K. Max,et al."Joint measurements of PM2.5 and light-absorptive PM in woodsmoke-dominated ambient and plume environments".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.18(2017). |
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