AIVC - Air Infiltration and Ventilation Centre

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organic compound

Indoor air quality in relation to sensory irritation due to volatile organic compounds.

The Sick Building Syndrome (SBS-syndrome) as defined by a WHO working group is discussed, and the existence of a sub syndrome is postulated, based on observations reported in the literature. This sub syndrome relates mucous membrane irritation - sensory irritation, dryness in nose and eye, which are very frequent symptoms within the Sick Building Syndrome - to the totalconcentration of volatile organic compounds (VOC) of the solvent type. This VOC syndrome may include other until now unidentified symptoms.

Environment and Power: Home weatherization and indoor air pollutants.

A booklet for consumers explaining the effects of house-tightening measures on pollutant levels. It also provides a guide to detecting and controlling pollutants commonly found in homes.

Environment and Power: Energy efficient new homes and indoor air pollutants.

This booklet for consumers discusses what indoor air pollution is and how it can affect health. Ways of reducing pollutant levels are summarised

Indoor air pollution and housing technology.

Reviews the scientific literature on indoor air pollution. Low-pollution design and construction techniques employed in the Sunnyhill Low-Pollution Research Centre are outlined in detail and suggestions are made on their applicability to new and existing housing in Canada. The study recommends a four-fold approach to the indoor air pollution problem by government and the building industry: A) short-circuit major potential hazards, B) deal with low-pollution housing needs, C) spread and apply present knowledge, and D)foster more research and discussions on regulation.

Air quality with use of make-up air.

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.

The influence of ageing and air change on the emission rate of gases and vapours from some building materials.

The influence of air change and ageing on emissions from 5 different building materials were studied. It was concluded that increasing the air change rate in a rather leaky house was of practically no importance in preventing problems caused by emissions. It was also assumed that a reduction of the air change rate in a tight house may result in a considerable increase in the concentration of substances in the room air. For all 5 materials, the emission rate decreases with time.

Indoor air and human health

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.

The atmospheric environment in six energy efficient single family houses.

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).