The participating countries of Annex IX "Minimum Ventilation Rates" study emission rates and time dependence for building materials and their dependence on various factors including human behaviour; indoor transfer and interactions; control and air treatment; modelling indoor pollution including economic and social factors; strategies for indoor air pollution control under the restraints of energy conservation. The results of this international programme will be pooled to produce recommendations for guidelines.
Person-equivalent flames are used to test the performance of ventilation taking account of human occupancy. The resulting carbon dioxide concentration is measured. Standardised bottle gas burners were found to be the most suitable gas sources. Candles were also examined and standardised for thepurpose. Possible risks are also discussed.
Direct gas fired heated make-up air is used in industrial buildings to replace exhausted air and to achieve a comfortable temperature while avoiding draughts. This study presents the results of an investigation of the pollution from such a system under different conditions.
Covers indoor pollutant levels and their health effects in humans and animals for five principal classes of pollutant: radon, microorganisms, passive cigarette smoke, combustion products, and organic compounds. They are examined from viewpoints such as measurement and source characterisation habitat studies, health effects, risk analysis, and future needs.
Operation of an unvented combustion appliance indoors can elevate pollutant concentrations. Under laboratory conditions, oxygen consumption rates and pollutant emission rates of CO, CO2, NO, NO2, HCHO and submicron suspended particles emitted
Air pollution due to volatile compounds in six unoccupied houses with intended low energy consumption was measured. The measurements included air temperature, air humidity, ventilation rate and concentration of organic gases and vapours. On average 14 different compounds were identified in concentrations exceeding 0.005 mg/m3 in the samples, and Toluene and alpha-Pinene were the most frequent compounds. A total concentration of organic gases and vapours averaged for the five periods of measurements 0.46 mg/m3 (0.032 - 5.5 mg/m3).
A survey was carried out on 15 homes in Northern Italy to evaluate the occurrence of 35 selected volatile organic compounds and of total volatile organics in indoor air and in ambient (outdoor) air. Respirable suspended particulates and venti
Covers the factors affecting air infiltration and indoor air quality, the utility of existing air infiltration models, and the ideal and practical requirements of a relevant indoor air quality model that could be used as a tool for management of atmosphere in tightly enclosed residential spaces.
In a previous paper it was found that the number of persons occupying aroom, or the air space per occupant, is a very important factor affecting theper capita outdoor air supply for the control of body odors. In a room with a net air spac
The work to be described here is an elaboration of Lehmberg's preliminary experiments. The object was to study the general problem of ventilation odours under normal conditions, comparable to those in schoolrooms, offices, homes and the like with the possibility of establishing ventilation requirements for various groups of individuals, including grade school children and adults, under representative winter and summer conditions. Three methods of odor control were studied dealing with personal sanitation, ventilation, and air washing.
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