A120 Office IAQ screening

Evaluation on screening strategies for indoor air quality assessments in air-conditioned offices

Brief:

Unsatisfactory indoor air quality (IAQ) in air-conditioned offices would make the occupants uncomfortable and lead to productivity loss. Strategic IAQ monitoring and assessment conducted with optimised resources for representative pollutants and air sampling are developed. This study proposes a simple screening process; with a readily developed IAQ express assessment protocol (EAP), to improve the accuracy in screening the office environment of unsatisfactory IAQ. This screening process is conducted with an `IAQ index', correlated with an event of unsatisfactory IAQ regarding its `failure' due to other six unmeasured air pollutant levels in the EAP; where the IAQ index is defined as the average fractional dose to certain exposure limits from the assessed top dominant contributors. The screening strategies were examined against the existing IAQ assessment results.

Further information:

Wong LT, Mui KW, Hui PS, 2009. Evaluation on screening strategies for indoor air quality assessments in air-conditioned offices, Building Services Engineering Research and Technology 30(3) 203-212.