AIVC - Air Infiltration and Ventilation Centre

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air quality

Chipboard is not the only cause of formaldehyde nuisance. Spaanplat is niet de enige oorzaak van hinder door formaldehyde.

Elucidates many different aspects of formaldehyde occurrence, such as, comparable indoor air pollutants, complaints and investigations, coherence with ventilation rate and construction, chipboard types, qualities and prices, differing European directives on board composition, chipboard in cold and warm types of flat roofs.

Organic contaminants in indoor air and their relation to outdoor contaminants.

Describes a sampling system developed to collect, analyze and identify organic contaminants in air over as wide a range of molecular carbon number range as possible. Describes sampling technique and reports results of sampling in 36homes in the Chicago area. Two samples were taken simultaneously inside and outside. Fifteen homes were sampled in both summer and winter.< Concludes that people are exposed to a wide range of organic compounds on average at concentrations of below 100ppb.

Air quality in living and working places. Luftqualitat in Wohn -und Arbeitsraumen.

Air quality inside buildings depends on the contamination of outside air as well as on the air pollution inside the room. The human being contaminates the air through carbon dioxide, odours, vapours and particulates. The most important sources of pollution are tobacco smoke, consumer materials (organic solvents), building materials and furniture fittings (formaldehyde) and the use of gas for cooking and heating (nitrogen oxides, carbon monoxide).< Discusses these pollutants and reported levels of pollution in Swiss buildings. Discusses methods of removing pollutants from the air.

The effects of energy-efficient ventilation rates on indoor air quality at an Ohio elementary school.

The Lawrence Berkeley Laboratory measured the indoor air quality at Fairmoor Elementary School in Columbus, Ohio. A mobile laboratory was used to monitor air outdoors and at three indoor sites (two classrooms and a large multipurpose room); tests were made at three different ventilation rates. The parameters measured were outside air flow rates, odor perception, microbial burden, particulate mass, total aldehydes, carbon dioxide, carbon monoxide, sulfur dioxide, ozone, and nitrogen oxides.

Pollution components in the indoor air in the "zero-energy house" at the Royal Technical University of Denmark. Forureningskomponenter i indeluften i "Nulenergihuset" ved DtH.

Measurements of vapours and gases from organic solvents (GC-MS) of formaldehyde and of odour were performed inside and outside an uninhabited experimental house with and without operating the ventilating system.< The indoor air quality is evaluated with respect to human health andwellbeing, and guidelines for the setting of hygenic standards for indoor air quality are discussed, taking into account that building materials should neither emit carcinogens, respiratory irritants nor odorous compounds.

Evaluation of ventilation requirements and consumption in existing New York City school.

Reports study of the energy consumption and ventilation requirements of typical existing public schools in New York. Electricity and fuel-oil consumption data from May 1970 to April 1973 from 19 schools were analysed.

Energy conservation and indoor air quality.

Reviews the topic of indoor air quality as it relates to energy efficient homes. Discusses air pollution from combustion, airborne particles, formaldehyde and radon. Concludes that indoor air quality in existing homes and those currently being constructed, can be managed so as to avoid adverse effects on the occupants.

Study of the internal climate in selected rooms of a Berlin school. Studie uber raumklimatische Umbegungsbedingungen in ausgewahlten Raumen eines Berliner Mittelstufenzentrums.

Reports findings of investigations carried out by West German Federal Ministry of Health in July 1978 into the internal climate in the one third of the rooms in a representative West Berlin school which are located in the building core. These rooms have mechanical ventilation and artificial lighting. Gives results of measurements of room temperatures, air change rates, (measured using N2O as a tracer gas), concentration of carbon dioxide and acoustic performance of the rooms.

Residential air pollution levels: Observation and data interpretation.

The indoor air quality of five detached dwellings, two townhouses, six apartment units, two mobile homes, one school and one hospital have been monitored. The pollutants monitored were CO, NO, NO2, SO2, O3, CH4, CO2 and total hydrocarbons. Reports results and describes a mathematical model developed to predict indoor concentrations of these pollutants. Briefly discusses the effect of energy conserving measures on indoor air pollution.