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Sources of fine particulate matter in personal exposures and residential indoor, residential outdoor and workplace microenvironments in the Helsinki phase of the EXPOLIS study.
Scand J Work Environ Health. 2004; 30 Suppl 2:36-46.SJ

Abstract

OBJECTIVES

This study assessed the source contributions to the mass concentrations of fine particles (PM2.5) in personal exposures and in residential indoor, residential outdoor, and workplace indoor microenvironments of the nonsmoking adult population unexposed to environmental tobacco smoke in Helsinki, Finland.

METHODS

The elemental composition of 48-hour personal exposure and residential indoor, residential outdoor, and workplace indoor PM2.5 was analyzed by energy-dispersive X-ray fluorescence spectrometry for 76 participants not exposed to environmental tobacco smoke and 102 participating residences with no smoking in Helsinki as a part of the EXPOLIS study. Subsequently, a principal component analysis was used to identify the emission sources of PM2.5-bound elements and black smoke in each microenvironment, and this information was used to identify the corresponding sources in personal exposures. Finally, source reconstruction was done to determine the relative contributions of each source type to the total PM2.5 mass concentrations.

RESULTS

Inorganic secondary particles, primary combustion, and soil were the dominant source types for the PM2.5 mass concentration in all the microenvironments and personal exposures. The ratio of the residential indoor-to-outdoor PM2.5 concentration was close to unity, but the corresponding elemental ratios and source contributions varied. Resuspension of soil dust tracked indoors was a much larger contributor to residential and workplace indoor PM2.5 than soil dust to residential outdoor PM2.5. Source contributions to personal PM2.5 exposures were best approximated by data from residential and workplace indoor microenvironments.

CONCLUSIONS

Population exposure assessment of PM2.5, based on outdoor fixed-site monitoring, overestimates exposures to outdoor sources like traffic and long-range transport and does not account for the contribution of significant indoor sources.

Authors+Show Affiliations

National Public Health Institute, Department of Environmental Health, Kuopio, Finland. Kimmo.Koistinen@ktl.fiNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15487684

Citation

Koistinen, Kimmo J., et al. "Sources of Fine Particulate Matter in Personal Exposures and Residential Indoor, Residential Outdoor and Workplace Microenvironments in the Helsinki Phase of the EXPOLIS Study." Scandinavian Journal of Work, Environment & Health, vol. 30 Suppl 2, 2004, pp. 36-46.
Koistinen KJ, Edwards RD, Mathys P, et al. Sources of fine particulate matter in personal exposures and residential indoor, residential outdoor and workplace microenvironments in the Helsinki phase of the EXPOLIS study. Scand J Work Environ Health. 2004;30 Suppl 2:36-46.
Koistinen, K. J., Edwards, R. D., Mathys, P., Ruuskanen, J., Künzli, N., & Jantunen, M. J. (2004). Sources of fine particulate matter in personal exposures and residential indoor, residential outdoor and workplace microenvironments in the Helsinki phase of the EXPOLIS study. Scandinavian Journal of Work, Environment & Health, 30 Suppl 2, 36-46.
Koistinen KJ, et al. Sources of Fine Particulate Matter in Personal Exposures and Residential Indoor, Residential Outdoor and Workplace Microenvironments in the Helsinki Phase of the EXPOLIS Study. Scand J Work Environ Health. 2004;30 Suppl 2:36-46. PubMed PMID: 15487684.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sources of fine particulate matter in personal exposures and residential indoor, residential outdoor and workplace microenvironments in the Helsinki phase of the EXPOLIS study. AU - Koistinen,Kimmo J, AU - Edwards,Rufus D, AU - Mathys,Patrick, AU - Ruuskanen,Juhani, AU - Künzli,Nino, AU - Jantunen,Matti J, PY - 2004/10/19/pubmed PY - 2005/2/11/medline PY - 2004/10/19/entrez SP - 36 EP - 46 JF - Scandinavian journal of work, environment & health JO - Scand J Work Environ Health VL - 30 Suppl 2 N2 - OBJECTIVES: This study assessed the source contributions to the mass concentrations of fine particles (PM2.5) in personal exposures and in residential indoor, residential outdoor, and workplace indoor microenvironments of the nonsmoking adult population unexposed to environmental tobacco smoke in Helsinki, Finland. METHODS: The elemental composition of 48-hour personal exposure and residential indoor, residential outdoor, and workplace indoor PM2.5 was analyzed by energy-dispersive X-ray fluorescence spectrometry for 76 participants not exposed to environmental tobacco smoke and 102 participating residences with no smoking in Helsinki as a part of the EXPOLIS study. Subsequently, a principal component analysis was used to identify the emission sources of PM2.5-bound elements and black smoke in each microenvironment, and this information was used to identify the corresponding sources in personal exposures. Finally, source reconstruction was done to determine the relative contributions of each source type to the total PM2.5 mass concentrations. RESULTS: Inorganic secondary particles, primary combustion, and soil were the dominant source types for the PM2.5 mass concentration in all the microenvironments and personal exposures. The ratio of the residential indoor-to-outdoor PM2.5 concentration was close to unity, but the corresponding elemental ratios and source contributions varied. Resuspension of soil dust tracked indoors was a much larger contributor to residential and workplace indoor PM2.5 than soil dust to residential outdoor PM2.5. Source contributions to personal PM2.5 exposures were best approximated by data from residential and workplace indoor microenvironments. CONCLUSIONS: Population exposure assessment of PM2.5, based on outdoor fixed-site monitoring, overestimates exposures to outdoor sources like traffic and long-range transport and does not account for the contribution of significant indoor sources. SN - 0355-3140 UR - https://www.unboundmedicine.com/medline/citation/15487684/Sources_of_fine_particulate_matter_in_personal_exposures_and_residential_indoor_residential_outdoor_and_workplace_microenvironments_in_the_Helsinki_phase_of_the_EXPOLIS_study_ L2 - https://www.sjweh.fi/show_abstract.php?abstract_id=813 DB - PRIME DP - Unbound Medicine ER -