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Determination of PM2.5 sources using time-resolved integrated source and receptor models.

Abstract：

:Multivariate statistical techniques are applied to particulate matter (PM) and meteorological data to identify the sources responsible for evening PM spikes at Sunland Park, NM (USA). The statistical techniques applied are principal components analysis (PCA), redundancy analysis (RDA), and absolute principal components scores analysis (APCSA), and the data evaluated are 3-h average (6-9 p.m.) PM(2.5) mass and chemical composition and 1-h average PM(2.5) and PM(10) mass and environmental data collected in the winter of 2002. Although the interpretation of the data was complicated by the presence of sources which are likely changing in time (e.g. brick kilns), the multivariate analyses indicate that the evening high PM(2.5) is associated with burning-activities occurring to the south of Sunland Park, and these emissions are characterized by elevated Sb, Cl(-), and elemental carbon; approximately 68% of the PM(2.5) mass can be attributed to this source. The PM(10) evening peaks, on the other hand, are mainly caused by resuspended dust generated by vehicular movements south of the site and transported by the local terrain-induced drainage flow.

journal_name

Chemosphere

journal_title

Chemosphere

authors

García JH,Li WW,Cárdenas N,Arimoto R,Walton J,Trujillo D

doi

10.1016/j.chemosphere.2006.06.071

subject

Has Abstract

pub_date

2006-12-01 00:00:00

pages

2018-27

issue

11

eissn

0045-6535

issn

1879-1298

pii

S0045-6535(06)00825-3

journal_volume

65

pub_type

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