ABSTRACT
Use: power transmission, communication, illumination, heating, cooking, vision, photosynthesis (sunlight), etc.
Source: Ultraviolet light, visible light, infrared radiation, microwaves, radio and TV, power transmission
Recommended exposure: different depending on source, i.e. sunlight can damage skin
Absorption: depends on source Sensitive individuals: variable, i.e. fair-skinned children (sunburn)
Toxicity/symptoms: Depends on source. Solar radiation: sunburn, cataracts, cancer; microwave radiation: warming of skin or internal organs, controversy exists around exposure to low frequency energy such as AC power lines.