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Extremely low frequency magnetic field measurements in buildings with transformer stations in Switzerland

Röösli, M. and Jenni, D. and Kheifets, L. and Mezei, G.. (2011) Extremely low frequency magnetic field measurements in buildings with transformer stations in Switzerland. The science of the total environment, Vol. 409, H. 18. pp. 3364-3369.

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Official URL: http://edoc.unibas.ch/dok/A6002199

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Abstract

The aim of this study was to evaluate an exposure assessment method that classifies apartments in three exposure categories of extremely low frequency magnetic fields (ELF-MF) based on the location of the apartment relative to the transformer room. We completed measurements in 39 apartments in 18 buildings. In each room of the apartments ELF-MF was concurrently measured with 5 to 6 EMDEX II meters for 10min. Measured arithmetic mean ELF-MF was 0.59muT in 8 apartments that were fully adjacent to a transformer room, either directly above the transformer or touching the transformer room wall-to-wall. In apartments that only partly touched the transformer room at corners or edges, average ELF-MF level was 0.14muT. Average exposure in the remaining apartments was 0.10muT. Kappa coefficient for exposure classification was 0.64 (95%-CI: 0.45-0.82) if only fully adjacent apartments were considered as highly exposed (<0.4muT). We found a distinct ELF-MF exposure gradient in buildings with transformer. Exposure classification based on the location of the apartment relative to the transformer room appears feasible. Such an approach considerably reduces effort for exposure assessment and may be used to eliminate selection bias in future epidemiologic studies.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Environmental Exposures and Health > Physical Hazards and Health (Röösli)
UniBasel Contributors:Röösli, Martin
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Elsevier
ISSN:0048-9697
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:01 Mar 2013 11:08
Deposited On:08 Nov 2012 16:16

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