acceptable air quality

acceptable air quality

Inside a building, air that is free of harmful concentrations of contaminants and that is judged acceptable to at least 80% of the building’s occupants.
References in periodicals archive ?
The recently released Fourth National Climate Assessment warned that more than 100 million people in the United States live in communities where air pollution exceeds acceptable air quality standards.
Through evaluation of parameters such as exhaust and air intake locations, stack height and stack exit velocity, the minimum exhaust ventilation rates required to maintain acceptable air quality levels at the building air intakes can be determined.
Newcastle City Council defended its position, saying it is satisfied that the site's ventilation system will "ensure residents have acceptable air quality within the building".
Newcastle City Councildefended its position, saying it is satisfied that the site's ventilation system will "ensure residents have acceptable air quality within the building".
He pointed out that brown and purple color will indicate a dangerous level of pollution, orange will indicate a level dangerous for sensitive people and children, red will be for the very dangerous level of pollution for all, yellow for a slightly better quality of air, and green for acceptable air quality.
Standard 62.12016 prescribes an amount of outdoor air that, per the 2015 ASHRAE Handbook--HVAC Applications section on natatoriums, (2) is intended to provide acceptable air quality for an average pool using chlorine as the primary disinfectant (see Table 1).
Under the law, the ambient air standard of 0.5 nanograms per cubic meter would be an acceptable air quality over a 12-month, annual basis in the Territory of Akwesasne.
If the ventilation rates specified in this prescriptive procedure are provided, acceptable air quality is presumed to result.
[1] ASHRAE, "Ventilation for acceptable air quality" ASHRAE Standard 62-1989,1989.
The idea is to develop a forced-air system with inlet and outlet airflow located above head level in nonparallel walls, divided into two areas: the non-occupied upper area, which contains the airflow inlet and outlet, with high air velocity levels, used to make contaminant extraction easier, and the occupied lower area with low air velocity levels, used to ensure good thermal comfort, reduced local thermal discomfort, and acceptable air quality levels to the occupants.
Some FMSs will even allow compliance with IAQ standards like ASHRAE 62-2001 by monitoring the C[O.sub.2] in a space and controlling outdoor air intake to provide acceptable air quality.
"Monitoring alone for specific pollutants in a building will not ensure acceptable air quality. The facility manager should also develop a comprehensive, proactive approach that includes air quality management, staff training and an IAQ communication program."