What is an odour?The sense of smell is a primal sense for humans and animals. From an evolutionary standpoint it is one of the most ancient of senses. Smell (or Olfaction) allows us to identify food, mates, predators, and provides both sensual pleasure (the odour of flowers and perfume) as well as warnings of danger (e.g. spoiled food, chemical dangers). For both humans and animals, it is one of the important means by which our environment communicates with us.
Odour is a property of a mixture of substances capable of stimulating the olfaction sense sufficiently to trigger a sensation of odour.
Odour is considered a nuisance when people can perceive it in their living environment and:
When an individual experiences an odour nuisance, the following factors should be taken into account to determine the level of annoyance: