Noise is an environmental contaminant along with radiation, and organic and inorganic chemicals such as heavy metals and pesticides. Defined as a source that emits noise high enough to impact a significant number of people, environment noise (or sound) is a non-ionized form of acousitcal radiation. Ionized radiation is emitted by radioactive substances, while non-ionized radiation comes from radio waves, microwaves, and low frequency electromagnetic waves (Health Canada, p. 75). Sources of Environmental Noise Pollution The main sources of environmental noise pollution are air conditioners and industrial equipment; noise from industry, construction, and demolition; noise generated by human activity such as lawn mowers or leaf blowers, loud music, barking dogs, children playing, and outdoor events such as concerts or festivals. Another significant source of environmental noise pollution is transportation related: buses, trains, cars, motorcycles, trucks, and emergency vehicle ...
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