LoginNotes that indoor air can contain between 01 - 100 x 10\9 ppm particles and that sub-micronic particles (1 -100 micro m) dominate. Defines indoor as microbiological laboratories, public buildings including the stations, nurseries, cinemas etc.
Bibliographic database Airbase
AIRBASE is the Bibliographic Database of the AIVC. It contains publications and abstracts of articles related to energy efficient ventilation. Where possible, sufficient detail is supplied in the bibliographic details for users to trace and order the material via their own libraries. Topics include: ventilation strategies, design and retrofit methods, calculation techniques, standards and regulations, measurement methods, indoor air quality and energy implications etc. Entries are based on articles and reports published in journals, internal publications and research reports, produced both by university departments and by building research institutions throughout the world. AIRBASE has grown and evolved over many years (1979 to present day, over 22000 references and 16000 documents available online). For most of the references, the full document is also available online.
Access to the publications is free of charge.
Investigation has shown connection between radon content in mines and lung cancer in miners. Radon is also present in building structures.
Reports first report from committee, "Preliminary proposals for measures against radiation risks in dwellings".
The Swedish building regulations give recommended tightness values for buildings of 3 air changes per hour for single houses, 2 air changes per hour for other housing with not more than two stories and 1 air change per hour fortaller buildings.
Describes a model for calculating the energy losses caused by ventilation and uncontrolled leakage of air in buildings. Discusses leakage characteristics of building envelope and duct system, the effects of wind and stack effects.
Reports a series of experiments made in the U.S. Bureau of Mines radon test chamber to study the effects of condensation nuclei, humidity and turbulence on the rapid deposition or plateout of radon daughter activity on the chamber walls.
Presents model of indoor pollution that assumes a linear relation between indoor pollutant levels and the air change rate. Discusses effect of heating system and cooking on pollutant levels and ventilation rate.
Gives general discussion of sources of radon gas and its daughter products. Reviews measurements made of radon concentrations in air. Outlines control strategies for limiting radon in buildings.
Heating systems may emit pollutants into living spaces of buildings. Presents model for estimating exposure to pollutants allowing for variation of air change rate and inside-outside temperature differences.
Points out that conservation measures such as storm windows which seal a building protect occupants from outdoor air pollution but amplify effects of pollution generated indoors. Considers which effect is greater.
Gives results of a survey carried out in December 1978 on heating and ventilating of dwellings. 2000 men and women were questioned throughout the federal republic.
Reports measurements of air change rates carried out in the living rooms of 39 flats built during the last 20 years using Freon 12 as a tracer gas.
Describes results of measurements of air leakage, surface pressures and air infiltration for several conventional and energy efficient houses located throughout the United States.
Presents diagrams showing the behaviour of air currents in two passive solar houses. Suggests some straightforward means by which repetitive patterns of discrete currents can be engineered.
Discusses five different models for predicting air infiltration. Presents a new model developed at the Institute of Gas Technology.
Reports field monitoring program by the Lawrence Berkeley Laboratory to assess the potential impact of reduced ventilation of indoor air quality. Three houses, designed to be energy-efficient, were monitored using a mobile laboratory.
Describes the use of mechanical ventilation coupled with heat recovery devices in residential buildings to maintain acceptable indoor air quality and conserve energy. Gives tables showing the energy saving possible with a heat exchanger.
Reports a series of tests of the air leakage of new homes built and sold in the Ottawa area in 1978. The homes were tested by depressurizing them to apressure difference of 10 Pascals. 80 tests were made involving 63 houses and 9 builders.
The potential for air conditioning energy savings using exhaust fans to cool attics was investigated in six occupied townhouses at Twin Rivers. These houses were compared with similar houses without attic fans.
Gives comprehensive and detailed instructions for the design and construction of airtight buildings. Discusses the problems involved in building an airtight house.