Magnetic field exposure estimates based on power lines near homes.
International Workshop on Exposure Metrics and Dosimetry for EMF Epidemiology. Chilton, GBR, 1998/09/07.
Several epidemiological studies have based their estimates of magnetic field exposure on the proximity to power lines.
This has been done in three principally different ways, which differ in the amount of information that is used.
These are :
(1) distance ;
(2) distance and configuration (wire code) ;
and (3) distance, configuration, and load (calculated field).
It is presumed that the more information that is used, the more accurate is the exposure estimate.
All these three approaches suffer from the limitation that they only account for exposure that is generated by power lines.
The influence on the in-home magnetic field from sources other than the power line are not considered, nor is exposure experienced at places other than the home.
This raises the following question.
What is the implication for the result of the epidemiological study of the exposure misclassification that is introduced by basing magnetic field exposure estimation on power lines near homes ?
Although the necessary information is only partly at hand the answers to this question will be discussed.
The hasis will be some general epidemiological principles combined with data from a Swedish study on residential exposure and cancer risk.
Mots-clés Pascal : Champ magnétique, Analyse risque, Ligne haute tension, Estimation paramètre, Logement habitation, Radioprotection, Rayonnement non ionisant
Mots-clés Pascal anglais : Magnetic field, Risk analysis, High voltage line, Parameter estimation, Housing, Radioprotection, Non ionizing radiation
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0335147
Code Inist : 002A08F01. Création : 16/11/1999.