Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-4863-2019 |
Receptor modelling of both particle composition and size distribution from a background site in London, UK - a two-step approach | |
Beddows, David C. S.1; Harrison, Roy M.1,2 | |
2019-04-11 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:7页码:4863-4876 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Saudi Arabia |
英文摘要 | Some air pollution datasets contain multiple variables with a range of measurement units, and combined analysis using positive matrix factorization (PMF) can be problematic but can offer benefits through the greater information content. In this work, a novel method is devised and the source apportionment of a mixed unit dataset (PM10 mass and number size distribution, NSD) is achieved using a novel two-step approach to PMF. In the first step the PM10 data are PMF-analysed using a source apportionment approach in order to provide a solution which best describes the environment and conditions considered. The time series G values (and errors) of the PM10 solution are then taken forward into the second step, where they are combined with the NSD data and analysed in a second PMF analysis. This results in NSD data associated with the apportioned PM10 factors. We exemplify this approach using data reported in the study of Beddows et al. (2015), producing one solution which unifies the two separate solutions for PM10 and NSD data datasets together. We also show how regression of the NSD size bins and the G time series can be used to elaborate the solution by identifying NSD factors (such as nucleation) not influencing the PM10 mass. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000464163000002 |
WOS关键词 | POSITIVE MATRIX FACTORIZATION ; SOURCE APPORTIONMENT ; NUMBER CONCENTRATIONS ; PMF ANALYSIS ; AEROSOLS |
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/182304 |
专题 | 地球科学 |
作者单位 | 1.Univ Birmingham, Natl Ctr Atmospher Sci, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England; 2.King Abdulaziz Univ, Dept Environm Sci, Ctr Excellence Environm Studies, POB 80203, Jeddah 21589, Saudi Arabia |
推荐引用方式 GB/T 7714 | Beddows, David C. S.,Harrison, Roy M.. Receptor modelling of both particle composition and size distribution from a background site in London, UK - a two-step approach[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(7):4863-4876. |
APA | Beddows, David C. S.,&Harrison, Roy M..(2019).Receptor modelling of both particle composition and size distribution from a background site in London, UK - a two-step approach.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(7),4863-4876. |
MLA | Beddows, David C. S.,et al."Receptor modelling of both particle composition and size distribution from a background site in London, UK - a two-step approach".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.7(2019):4863-4876. |
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