Spatial and Temporal Variation in PM(2.5) Chemical Composition in the United States for Health Effects Studies

Overview

Journal Environ Health Perspect

Date 2007 Jul 20

PMID 17637911

Citations 242

Authors

Michelle L Bell

Francesca Dominici

Keita Ebisu

Scott L Zeger

Jonathan M Samet

Affiliations

Soon will be listed here.

Abstract

Background: Although numerous studies have demonstrated links between particulate matter (PM) and adverse health effects, the chemical components of the PM mixture that cause injury are unknown.

Objectives: This work characterizes spatial and temporal variability of PM(2.5) (PM with aerodynamic diameter < 2.5 microm) components in the United States; our objective is to identify components for assessment in epidemiologic studies.

Methods: We constructed a database of 52 PM(2.5) component concentrations for 187 U.S. counties for 2000-2005. First, we describe the challenges inherent to analysis of a national PM(2.5) chemical composition database. Second, we identify components that contribute substantially to and/or co-vary with PM(2.5) total mass. Third, we characterize the seasonal and regional variability of targeted components.

Results: Strong seasonal and geographic variations in PM(2.5) chemical composition are identified. Only seven of the 52 components contributed >/= 1% to total mass for yearly or seasonal averages [ammonium (NH(4) (+)), elemental carbon (EC), organic carbon matter (OCM), nitrate (NO(3) (-)), silicon, sodium (Na(+)), and sulfate (SO(4) (2-))]. Strongest correlations with PM(2.5) total mass were with NH(4) (+) (yearly), OCM (especially winter), NO(3) (-) (winter), and SO(4) (2-) (yearly, spring, autumn, and summer), with particularly strong correlations for NH(4) (+) and SO(4) (2-) in summer. Components that co-varied with PM(2.5) total mass, based on daily detrended data, were NH(4) (+), SO(4) (2-) (,) OCM, NO(3) (2-), bromine, and EC.

Conclusions: The subset of identified PM(2.5) components should be investigated further to determine whether their daily variation is associated with daily variation of health indicators, and whether their seasonal and regional patterns can explain the seasonal and regional heterogeneity in PM(10) (PM with aerodynamic diameter < 10 microm) and PM(2.5) health risks.

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References

Dominici F, McDermott A, Zeger S, Samet J . National maps of the effects of particulate matter on mortality: exploring geographical variation. Environ Health Perspect. 2003; 111(1):39-44. PMC: 1241304. DOI: 10.1289/ehp.5181. View

Paatero P, Hopke P, Hoppenstock J, Eberly S . Advanced factor analysis of spatial distributions of PM2.5 in the eastern United States. Environ Sci Technol. 2003; 37(11):2460-76. DOI: 10.1021/es0261978. View

Burnett R, Brook J, Dann T, Delocla C, Philips O, Cakmak S . Association between particulate- and gas-phase components of urban air pollution and daily mortality in eight Canadian cities. Inhal Toxicol. 2003; 12 Suppl 4:15-39. DOI: 10.1080/08958370050164851. View

Lapina K, Paterson K . Assessing source characteristics of PM2.5 in the eastern United States using positive matrix factorization. J Air Waste Manag Assoc. 2004; 54(9):1170-4. DOI: 10.1080/10473289.2004.10470981. View

Ostro B . Fine particulate air pollution and mortality in two Southern California counties. Environ Res. 1995; 70(2):98-104. DOI: 10.1006/enrs.1995.1053. View

Fairley D . Daily mortality and air pollution in Santa Clara County, California: 1989-1996. Environ Health Perspect. 1999; 107(8):637-41. PMC: 1566474. DOI: 10.1289/ehp.99107637. View

Thurston G, Ito K, Mar T, Christensen W, Eatough D, Henry R . Workgroup report: workshop on source apportionment of particulate matter health effects--intercomparison of results and implications. Environ Health Perspect. 2005; 113(12):1768-74. PMC: 1314918. DOI: 10.1289/ehp.7989. View

Laden F, Schwartz J, Speizer F, Dockery D . Reduction in fine particulate air pollution and mortality: Extended follow-up of the Harvard Six Cities study. Am J Respir Crit Care Med. 2006; 173(6):667-72. PMC: 2662950. DOI: 10.1164/rccm.200503-443OC. View

Dominici F, Peng R, Bell M, Pham L, McDermott A, Zeger S . Fine particulate air pollution and hospital admission for cardiovascular and respiratory diseases. JAMA. 2006; 295(10):1127-34. PMC: 3543154. DOI: 10.1001/jama.295.10.1127. View

10.

Schwab J, Felton H, Rattigan O, Demerjian K . New York State urban and rural measurements of continuous PM2.5 mass by FDMS, TEOM, and BAM. J Air Waste Manag Assoc. 2006; 56(4):372-83. DOI: 10.1080/10473289.2006.10464523. View

11.

Flanagan J, Jayanty R, Rickman Jr E, Peterson M . PM2.5 speciation trends network: evaluation of whole-system uncertainties using data from sites with collocated samplers. J Air Waste Manag Assoc. 2006; 56(4):492-9. DOI: 10.1080/10473289.2006.10464516. View

12.

Frank N . Retained nitrate, hydrated sulfates, and carbonaceous mass in federal reference method fine particulate matter for six eastern U.S. cities. J Air Waste Manag Assoc. 2006; 56(4):500-11. DOI: 10.1080/10473289.2006.10464517. View

13.

Hopke P, Ito K, Mar T, Christensen W, Eatough D, Henry R . PM source apportionment and health effects: 1. Intercomparison of source apportionment results. J Expo Sci Environ Epidemiol. 2005; 16(3):275-86. DOI: 10.1038/sj.jea.7500458. View

14.

Pope 3rd C, Dockery D . Health effects of fine particulate air pollution: lines that connect. J Air Waste Manag Assoc. 2006; 56(6):709-42. DOI: 10.1080/10473289.2006.10464485. View

15.

Mar T, Ito K, Koenig J, Larson T, Eatough D, Henry R . PM source apportionment and health effects. 3. Investigation of inter-method variations in associations between estimated source contributions of PM2.5 and daily mortality in Phoenix, AZ. J Expo Sci Environ Epidemiol. 2005; 16(4):311-20. DOI: 10.1038/sj.jea.7500465. View

16.

Ito K, Christensen W, Eatough D, Henry R, Kim E, Laden F . PM source apportionment and health effects: 2. An investigation of intermethod variability in associations between source-apportioned fine particle mass and daily mortality in Washington, DC. J Expo Sci Environ Epidemiol. 2005; 16(4):300-10. DOI: 10.1038/sj.jea.7500464. View

17.

Ostro B, Feng W, Broadwin R, Green S, Lipsett M . The effects of components of fine particulate air pollution on mortality in california: results from CALFINE. Environ Health Perspect. 2007; 115(1):13-9. PMC: 1797827. DOI: 10.1289/ehp.9281. View

18.

Franklin M, Zeka A, Schwartz J . Association between PM2.5 and all-cause and specific-cause mortality in 27 US communities. J Expo Sci Environ Epidemiol. 2006; 17(3):279-87. DOI: 10.1038/sj.jes.7500530. View

19.

Peng R, Dominici F, Pastor-Barriuso R, Zeger S, Samet J . Seasonal analyses of air pollution and mortality in 100 US cities. Am J Epidemiol. 2005; 161(6):585-94. DOI: 10.1093/aje/kwi075. View

20.

Laden F, Neas L, Dockery D, Schwartz J . Association of fine particulate matter from different sources with daily mortality in six U.S. cities. Environ Health Perspect. 2000; 108(10):941-7. PMC: 1240126. DOI: 10.1289/ehp.00108941. View