In June 2001 ASHRAE's Standard Project Committee on "Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings", SPC 62.2P, recommended and the Board of Directors approved ASHRAE's second complete standard on residential ventilation for public review; this was followed by public reviews of independent substantive changes in 2002 . The standard is an attempt by the Society to address concerns over indoor air quality in dwellings and to set minimum requirements that would allow for indoor air quality and energy efficiency measures to be evaluated.
The heterogeneous photocatalysis relies on the activation of a half-conductor. The most often used is TiO2, with radiations of energy at least equal to the ones of the width of the forbidden band.The electronic changes due to that activation lead, in the presence of air, to the creation of oxygenated radicals. Those radicals attack the adsorbed organic compounds and degrade them. Starting from evaluations made with a laboratory photoreactor, this paper shows that photocatalysis is an appropriate method to purify air in domestic buildings (or other confined spaces).
This article describes the various types of fungi (yeasts, molds, mushrooms, ...). It reminds that they are single or multi-cellular non-motile organisms which rely on other organism or environment for nutrients. Fungi can generate spores which can germinate under appropriate conditions (moisture, substrate, temperature) after an extended period during which they remain dormant.
The article presents the advantages of decoupling the outdoor ventilation air cooling and dehumidification from the space cooling and dehumidification. These dual-path systems (one air handling unit for outdoor air with total energy recovery, another air handling unit for the recirculation air, and a single air supply delivery system) are used in all-air variable air volume system designs. They can be combined with CO2-based demand controlled ventilation, which offers superior control and cost savings.
This document results from a Working Group set up by the World Health Organization. It reviews States current approaches to protect population from environmental tobacco smoke exposure. The meeting defined conditions for successful policies and recommended strategies for future action.
This report informs and advises governments, public health authorities, policy makers and sectors relevant to indoor air quality management on how to develop and strengthen IAQ policy in order to protect and promote health in the indoor environment. Strategies and possible action plan for policies related to public non-industrial buildings. The report also summarizes experience in European countries and in the USA.
The document consists in the Proceedings of the 2001 AIVC conference, which took place in in September 2001 in Bath (England). It contains 42 articles corresponding to the speeches given during the Conference.
The document consists in the Proceedings of the 1999 AIVC conference, which took place in in August 1999 in Edinburgh (Scotland). It contains 141 articles corresponding to the speeches given during the Conference.
This document results from a Working Group set up by the World Health Organization. It formulates a set of statements on the right to healthy indoor air.
The natural ventilation potential (NVP) is the possibility, or probability, to ensure anacceptable indoor air quality by natural ventilation only. A passive cooling potential (PCP)can also be defined, as the possibility to ensure an acceptable indoor thermal comfort usingnatural ventilation.
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