A multivariate receptor modeling study of air-borne particulate PAHs: Regional contributions in a roadside environment

Title
A multivariate receptor modeling study of air-borne particulate PAHs: Regional contributions in a roadside environment
Authors
배귀남김진영이승복서지훈Bong Mann KimSunwha KimJi Yi Lee
Keywords
source apportionment; SMP multivariate model; Roadside PAHs; Regional source; Motor vehicle exhaust
Issue Date
2016-02
Publisher
Chemosphere
Citation
VOL 144, 1270-1279
Abstract
Understanding the geographic source contributions by particulate polycyclic aromatic hydrocarbons (PAHs) is important for the Korean peninsula due to its downwind location from source areas. Regional influence of particulate PAHs was previously identified using diagnostic ratios applied to mobile source dominated roadside sampling data (Kim et al., 2012b). However, no study has yet been conducted to quantify the regional source contributions. We applied a multivariate receptor modeling tool to identify and quantify the regional source contributions to particulate PAHs in Seoul. Sampling of roadside particulate PAHs was conducted in Seoul, Korea for four years between May 2005 and April 2009, and data analysis was performed with a new multivariate receptor model, Solver for Mixture Problem (SMP). The SMP model identified two sources, local mobile source and transported regional source, and quantified their source contributions. Analysis of the particulate PAHs data reveals three types of episodic periods: a high regional source contribution period with one case, a high mobile source contribution period with three cases, and a normal contribution period with eight cases. Four-year average particulate PAHs source contributions from the two sources are 4.6 ng m− 3 and 10.7 ng m− 3 for regional and mobile sources, respectively and equivalent to 30% and 70% of the total estimated contribution from each of these sources.
URI
http://pubs.kist.re.kr/handle/201004/59148
ISSN
00456535
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE