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I am intrigued by the potential of a newish gadget to improve odour monitoring, including self-monitoring by regulated entities. The Nasal Ranger is a handheld “field olfactometer”, an alternative to conventional odour panels that can be used on the spot.  The Ranger is designed for US states which regulate odours by the number of dilutions necessary to make them imperceptible; most allow a dilution level of 7, which is much less demanding than Ontario’s 1 odour unit.  Still, it seems likely to also provide the data needed in Ontario. A field instrument should be quicker and cheaper to use than a conventional odour survey, and therefore can be used much more frequently. It should therefore provide a truer assessment of actual odour frequencies, for both those on both sides of an odour dispute.

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