1. Sources 1.1 Numerous 1.2 Residential exposures, typically below 0.1 μT or 1 mG 1.3 Vary with distance and activity 2. Surrogates of exposure 2.1 Use of electric blankets 2.2 Wire codes 2.3 Measurements (spot, 24-h area, personal monitoring) 2.4 Models (calculated fields).
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