Exposure of children to residential magnetic fields in Norway: Is proximity to power lines an adequate predictor of exposure?

摘要: The aim of this work was to study the exposure magnetic fields children living at different distances from a power line and evaluate how well theoretical calculations compared with actual exposure. Personal instruments were carried for 24 h by 65 schoolchildren 28 ‐ 325 m 300 kV transmission line; current load 200 700 A. About half attended school far line, whereas other located about 25 line. Exposure analyzed three categories location: home, school, all places. Time spent in bed separately. results indicated that who lived close had higher field than children. most important source when due greater 0.2 mT. influenced time-weighted average considerably those cases where distance between home very calculated field, based on configuration, load, corresponded reasonably measured field. However, correlation depends whether only or is used analysis which attended. seems be good predictor could epidemiological studies, least Norway, electrical system normally less ground countries. Bioelectromagnetics 18:47 57, 1997. q 1997 Wiley-Liss, Inc.