TY - JOUR
T1 - Receptor modeling studies for the characterization of air particulate lead pollution sources in Valenzuela sampling site (Philippines)
AU - Pabroa, Preciosa Corazon B.
AU - Santos, Flora L.
AU - Morco, Ryan P.
AU - Racho, Joseph Michael D.
AU - Bautista VII, Angel T.
AU - Bucal, Camille Grace D.
N1 - Funding Information:
Equipment and manpower development were funded by the International Atomic Energy Agency (IAEA) through the technical cooperation project on “Air Pollution Source Apportionment Using Nuclear and Related Analytical Techniques”. The project on “Particulate Matter Monitoring by Nuclear and Related Analytical Techniques and Source Apportionment in Valenzuela, Metro Manila” was funded by PCIERD . Valenzuela sampling site is co– located with the air sampling stations of the Environmental Management Bureau. Staff in–charge of regular sampling activities and maintenance of the air samplers are Ms. Gloria Jimenez and Mr. Danilo Cuyco.
PY - 2011/4
Y1 - 2011/4
N2 - Valenzuela, an industrial district in the northwestern part of Metro Manila, Philippines, was found to have higher particulate and lead levels than in the other Metro Manila air sampling stations of the Philippine Nuclear Research Institute. Results in 2004-2009 show that while PM10 annual mean levels are in compliance with the long and short-term Philippine standards for PM10, PM2.5, annual mean levels are in exceedance of the long- term standard of the US EPA (15 μg m-3). Energy-dispersive x-ray fluorescence spectrometry, a non-destructive multi-element nuclear related analytical technique, was used to analyze the elemental components of the air particulates. Positive matrix factorization, a receptor modeling tool, was used to identify and apportion air pollution sources. This study has identified Pb sources in both the coarse (PM2.5-10) and the fine (PM2.5) fractions. The conditional probability function analysis plots of 2008 Pb levels in both the coarse and the fine fractions show patterns for probable sources in the 2008 data similar to that in the 2005 data indicating that Pb sources in 2005 were the same Pb sources in 2008. Further studies to locate possible sources of lead are needed to validate the results of this finding.
AB - Valenzuela, an industrial district in the northwestern part of Metro Manila, Philippines, was found to have higher particulate and lead levels than in the other Metro Manila air sampling stations of the Philippine Nuclear Research Institute. Results in 2004-2009 show that while PM10 annual mean levels are in compliance with the long and short-term Philippine standards for PM10, PM2.5, annual mean levels are in exceedance of the long- term standard of the US EPA (15 μg m-3). Energy-dispersive x-ray fluorescence spectrometry, a non-destructive multi-element nuclear related analytical technique, was used to analyze the elemental components of the air particulates. Positive matrix factorization, a receptor modeling tool, was used to identify and apportion air pollution sources. This study has identified Pb sources in both the coarse (PM2.5-10) and the fine (PM2.5) fractions. The conditional probability function analysis plots of 2008 Pb levels in both the coarse and the fine fractions show patterns for probable sources in the 2008 data similar to that in the 2005 data indicating that Pb sources in 2005 were the same Pb sources in 2008. Further studies to locate possible sources of lead are needed to validate the results of this finding.
KW - Air particulate matter
KW - Pb
KW - Receptor modeling
KW - Valenzuela
UR - http://www.scopus.com/inward/record.url?scp=84879743788&partnerID=8YFLogxK
U2 - 10.5094/APR.2011.027
DO - 10.5094/APR.2011.027
M3 - Article
AN - SCOPUS:84879743788
SN - 1309-1042
VL - 2
SP - 213
EP - 218
JO - Atmospheric Pollution Research
JF - Atmospheric Pollution Research
IS - 2
ER -