air quality

Common Air Contaminants (CACs)

Air pollutants commonly found in the atmosphere, namely carbon monoxide (CO), particulate matter (PM), nitrogen oxides (NOx), sulphur oxides (SOx), volatile organic compounds (VOCs) , ammonia (NH3) and Ground-level ozone…

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EN 13725 – YES/NO Mode

The assessor is asked to evaluate gas presented from a specific port and to indicate if an odour is perceived ( YES/NO). The assessor is aware that in some cases…

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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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