Sampling Equipment

Federal Clean Air Act (FCAA)

A federal law passed in 1970 and amended in 1974, 1977 and 1990 which forms the basis for the national air pollution control effort. Basic elements of the act include…

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Flow through hood

A wind tunnel is a device which is used to sample passive sources.  It is essentially a covering or ‘hood’ in which is placed on the surface and neutral gas…

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Flux Chamber

In the case of passive sources, a device is required to perform a direct measurement of the source, from either a solid or liquid surface.  Coverings or ‘hoods’ are usually…

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Lung sampler

Lung sampler ( Vacuum chamber ) is a device used to take odour samples by creating a pressure difference with respect to the inside of the container to the ambient…

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Micrometeorological method

This is an indirect measurement of passive sources where odour emission is determined by measuring wind velocities and concentrations across the plume profile downwind of the source simultaneously.  The turbulent…

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Odour Source

A location or object that emanates odours.  Sources can be divided by point, area, or volume sources that are of either passive, active or fugitive type.  For example, a rectangular…

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Source sampling

The process of obtaining an odourous sample.  Various equipment and standard methods applied depending on the source characteristics.  For example, a passive area will require different equipment for sampling than…

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Static dilution

The mixing of odourous gas and diluting neutral gas by volume. Often done in a form of bottle or container, it is used to store and use standards of violate…

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Static flux hood

In the case of passive sources, a device is required to perform a direct measurement of the source.  Coverings or ‘hoods’ are usually used to achieve this and one such…

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Vacuum Chamber

A device used to take odour samples by creating a pressure difference with respect to the inside of the container to the ambient atmosphere.  A container that can be sealed…

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