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
During the last fifteen years Urea-Formaldehyde (UF) bonded particle board, medium density fiberboard and plywood have replaced whole wood as a construction material for flooring, wall panelling cabinet work and furniture. At the same time,
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.
The Act (1981.592) on amendments in the Building Ordinance (1959:612) and implementing regulations appertaining thereto in the Building Code come into force on 1st January 1984. The regulations apply only to permanently used houses.
An estimate of the variation of non smokers' lung cancer risk from passive or involuntary smoking is given as a function of ventilation rate in a typical office, at an occupancy of 7 persons/100m2 as specified under ASHRAE standard 62-1981.
Traces the development in the UK of performance based standards for windows from the original British Standard Draft for Development 4 issued in 1971, through the UEAtc MOAT No1 isued in 1974, to the recent BS No 6375 Part 1 1983. The original three attributes of wind resistance, air permeability andwatertightness have been gradually developed. Test methodology has been refined, and for weathertightness levels of performance have been identified to reflect various categories of use.
Discusses the ASHRAE Standard 62-1981 "Ventilation for Acceptable Indoor AIr Quality", and extensive field measurements of ventilation. Presents apredictive model for indoor air contaminant concentrations in residences andits verification, along with the effects of several variables. Additional research on the indoor emanation rates of contaminants which are health hazards would enable the prediction of indoor contaminant levels with various control options.
Reviews new standards on thermal comfort and discusses the scientific basis for some of the limits. Presents new data for human response to asymmetric radiation and air velocity. Briefly discusses different strategies for saving energy while maintaining thermal comfort.
Provides basis for planning and installing plant for maintaining indoor climate based on previous draft which is based on earlier Danish Standard. Refers to several salient design criteria including leakage factors at given test pressure, maintenance of climate parameters, air quality, anticipated energy consumption. Gives example table for requirements of building in terms of m2/person depending on application. States example tolerances of air flows.
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