AIVC - Air Infiltration and Ventilation Centre

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air quality

Health risks from airborne pollution. Halsorisker till foljd av luftburna fororeningar.

Air pollution from combustion of fossil fuels can be injurious to health causing damages to air passages. Discusses health risks caused by radon emission in houses. Tables illustrate expected effects of exposure todifferent pollutants, causes of death, 15 years cumulative mortality data, mortality distribution comparison between UK and Sweden, risk of lung cancer caused by radon exposure, and effects on health caused by energy saving methods.

Formaldehyde in the home atmosphere. Formaldehyd i boligluft.

During the period 1973-76, measurements in housing where particle board is used as a building material have revealed a reduction in the formaldehyde content of the indoor atmosphere from 0.64 to 0.40 mg/cu.m. under standard indoor climatic conditions. A corresponding although slighter reduction in therelease of formaldehyde from particle board was found under controlled conditions in climatic chambers. Suggests these improvements in the quality of particle board will suffice to fulfill the proposed limit of 0.40 mg/cu.m.

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.