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How do we measure level of exposure and what does it dependent upon? What is SAR?
SAR (specific absorption rate) is a unit measuring the level of radiation absorbed inside the biological tissue. The Specific absorption rate is defined as the pace of electromagnetic absorption in weight unit of body tissue. The measuring unit is SAR and the units are watt to kilogram (W/kg), or mW/g (milli-watt to gram). The SAR depends on the broadcast power of the cell phone and the direction and how far the cell phone radiation exposing our head (or the body).
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