Source Identification and Apportionment of Fine Particulate Matter in Houston, TX, Using Positive Matrix Factorization
- 1 November 2003
- journal article
- research article
- Published by Mary Ann Liebert Inc in Environmental Engineering Science
- Vol. 20 (6), 533-545
- https://doi.org/10.1089/109287503770736050
Abstract
Samples of airborne fine particulate matter were collected at three sites in Houston, TX, and were analyzed for elemental concentrations by X-ray fluorescence and inductively coupled plasma-mass spectrometry. Positive Matrix Factorization (PMF) was applied to the elemental concentration data for source identification and apportionment. PMF resolved five physically interpretable factors at each site, of which four were found to be common at all sites: Crustal material, road dust, wood burning, and sea salt. The composition of the remaining factor was similar, but not identical, at the three sites, and had an elemental composition similar to industrial combustion. Crustal material was found to be the most important contributor at each site. All other sources contributed less to the total mass, although road dust source was the second major contributor to the total mass at one site. The sea salt factor was resolved at each site with the highest contribution at the closest site to the coast.Keywords
This publication has 21 references indexed in Scilit:
- In Situ Generation of Hydrofluoric Acid during Microwave Digestion of Atmospheric Particulate Matter Prior to Trace Element Analysis Using Inductively Coupled Plasma Mass SpectrometryEnvironmental Engineering Science, 2003
- Source apportionment of fine particulate matter in Houston, TX, using organic molecular markersAtmospheric Environment, 2003
- The Treasure Valley secondary aerosol study I: measurements and equilibrium modeling of inorganic secondary aerosols and precursors for southwestern IdahoAtmospheric Environment, 2003
- Air pollutant emissions associated with forest, grassland, and agricultural burning in TexasAtmospheric Environment, 2002
- Investigation of sources of atmospheric aerosol at urban and suburban residential areas in Thailand by positive matrix factorizationAtmospheric Environment, 2000
- Application of positive matrix factorization in source apportionment of particulate pollutants in Hong KongAtmospheric Environment, 1999
- Source identification of bulk wet deposition in Finland by positive matrix factorizationAtmospheric Environment, 1995
- Analysis of daily precipitation data by positive matrix factorizationEnvironmetrics, 1994
- Development of crustal profiles for receptor modelingAtmospheric Environment (1967), 1988
- A Cyclone for Size-Selective Sampling of Ambient AirJournal of the Air Pollution Control Association, 1980