For the purposes of this document, the term indoor air quality iaq represents the indoor air concentrations of pollutants that are known or suspected to affect peo ples comfort, environmental satisfaction, health, or work or school performance. Pdf air infiltration and indoor air quality modelsa. Indoorairqualityin commercialandinstitutional buildings occupationalsafetyandhealthadministration u. Pdf air infiltration and indoor air quality models. Such modeling provides a way to investigate many iaq problems without the expense of large field experiments. Indoorairqualityin commercialand institutionalbuildings. The models are generic in nature and are derived based on the mass balance for pollutant flow into and out of an indoor volume. Machine learning and statistical models for predicting. Indoor air quality iaq, as determined by the concentrations of indoor air pollutants, can be predicted using either physically based mechanistic models or statistical models that are driven by.
Some indoor air quality models combine both types of models. Primary focus is on residential indoor air quality. A number of airborne contaminants may be present in urban school environment. Available iaq compliance documents will be maintained by the designated person and will be available to peosh during an inspection. The humidity inside can affect the concentrations of some indoor air pollutants. Central heaters and air conditioners have filters to trap dust and other pollutants in the air. Where experiments are planned, iaq models can be used to help design experiments by providing information on expected pollutants. The issue of healthy living spaces and indoor air quality iaq is a global concernbecause people spend approximately 90% of their time indoors. Our agency will make reasonable efforts to obtain and maintain copies of iaq compliance documents.
The following discussion is based on the assumption of one compartment for the entire indoor volume. Make sure to change or clean the filters regularly, following the instructions on the package. Designing healthy homes that meet the latest codes and standards is easier than you think. The indoor air quality learning module and its companion document, the indoor air quality reference manual, provide an introduction to indoor air quality for environmental health professionals. This presentation is intended to cover comprehensively the factors affecting air infiltration and indoor air quality, the utility of existing air infiltration models, and the ideal and practical. Assessment of indoor air quality iaq in classrooms of school buildings is of prime concern due to its potential effects on students health and performance as they spend a substantial amount of their time 67 h per day in schools.