An Integrated Source Apportionment Methodology and Its Application over the Yangtze River Delta Region, China

Li Li, Jingyu An, Min Zhou, Liping Qiao*, Shuhui Zhu, Rusha Yan, Chel Gee Ooi, Hongli Wang, Cheng Huang, Ling Huang, Shikang Tao, Jianzhen Yu, Andy Chan, Yangjun Wang, Jialiang Feng, Changhong Chen

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

41 Citations (Scopus)

Abstract

An integrated source apportionment methodology is developed by amalgamating the receptor-oriented model (ROM) and source-oriented numerical simulations (SOM) together to eliminate the weaknesses of individual SA methods. This approach attempts to apportion and dissect the PM2.5 sources in the Yangtze River Delta region during winter. First, three ROM models (CMB, PMF, ME2) are applied and compared for the preliminary SA results, with information from PM2.5 sampling and lab analysis during the winter seasons. The detailed source category contribution of SOM to PM2.5 is further simulated using the WRF-CAMx model. The two pieces of information from both ROM and SOM are then stitched together to give a comprehensive information on the PM2.5 sources over the region. With the integrated approach, the detailed contributing sources of the ambient PM2.5 at different receptors including rural and urban, coastal and in-land, northern and southern receptors are analyzed. The results are compared with previous data and shows good agreement. This integrative approach is more comprehensive and is able to produce a more profound and detailed understanding between the sources and receptors, compared with single models.

Original languageEnglish
Pages (from-to)14216-14227
Number of pages12
JournalEnvironmental Science and Technology
Volume52
Issue number24
DOIs
Publication statusPublished - 18 Dec 2018

Bibliographical note

Publisher Copyright:
Copyright © 2018 American Chemical Society.

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