Odour Source

Downwind

The relative location of an observer with respect to a source of odour emission.  The direction of wind movement would first cross the odour source followed by the observer.  An…

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Electronic Nose

An electronic nose (e-nose) uses a sensor array that reacts to air pollutants by leaving behind a ‘fingerprint’ that can be attributed to an odour.  It is essentially composed of a sample…

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EN 13725 – Forced Choice Mode

The assessor is presented with two or more ports, of which one presents the stimulus and the other(s) neutral gas.The location of the stimulus in consecutive presentation is randomly distributed…

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Exposure

Exposure is a combination of the amount of a pollutant in the air and the amount of time that person stays in the presence of a pollutant. Exposure determines the…

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Hazardous Air Pollutants (HAPs)

Pollutants released into the atmosphere as particles and volatile organic compounds (VOCs) — including the known carcinogens of benzene and toluene — from a variety of sources such as vehicle…

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Upwind

The relative location of an observer with respect to a source of odour emission.  The direction of wind movement would first cross the observer followed by the source.  An observer…

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