air change rate

Describes the pollutant burdens on indoor air. Notes heat exchanges by air renewal and associated heat losses. Examines how to determine the required air change rate. Lists the minimum air changes for various types of building with and without smoking. Treats air infiltration. Considers how to reduce losses with air renewal by weather stripping, special air inlets, reduction of the indoor air temperature, heat recovery with controlled mechanical ventilation, heat pumps and heat pipes.

Examines the most important sources of indoor air pollution in dwellings. These include pollutants introduced with the outside air, pollutants generated by human activity, emissions from building materials, furnishings, cleaning and polishing materials and disinfectants. Notes the importance of keeping formaldehyde and carbon dioxide down to safe levels. Discusses the consequences for the minimum room air change rate.

Describes the different types of monitoring and sampling techniques that can determine the radiation burden of the general public from radon and its decay products. This is accomplished by measuring the range and distribution of radon and rad

Simulation methods and test results are presented here to confirm projections of actual total suspended particulate (TSP) concentration levels for representative office buildings, with particular emphasis on the 0.3 to 5 micron particulate si

The U.S. EPA initiated an indoor air monitoring program in 1982, concentrating on commercial or public-access buildings (homes for the elderly, schools, and office buildings). Several buildings from each category are sampled over 2-3 day peri

It is only recently that indoor air pollution has begun to attract the attention it deserves in Canadian Governmental and Building code circles. Two main events have been catalytic towards this increased emphasis. First, the ban on the use of ur

Describes methods of predicting concentration levels of indoor air pollution in a variety of residences by using residence air infiltration rates, residence volumes, and source terms, and by making assumptions about occupant lifestyle and poll

The use of urea formaldehyde resins in Canadian houses, the mechanism of formaldehyde releases, health effects, toxicity, carginogenicity, allergic reactions and standards for ventilation are discussed.

In response to employee complaints of upper respiratory and eye irritation, formaldehyde air sampling studies were conducted in two different office environments. The first was in a series of temporary modular buildings with construction simi

In large areas of the Swiss Alps, the high radium content of rocks and soil, which results in high source terms for radon from the ground, may produce considerable indoor levels of radon in dwellings with low air infiltration. During the winter