Dampness in buildings and health (DBH) : report from an ongoing epidemiological investigation on the association between indoor environmental factors and health effects among children in Sweden

The aim of this paper is to identify the link between indoor environmental factors and asthma or allergic symptoms among small children and their parents. That four-phases Swedish study will be lasting from 2000 until 2008 : First step : an epidemiological cross-sectional questionnaire on housing and health involving 14,077 preschool children (2000).Second step : a nested case-control study including 198 children with symptoms and 202 healthy controls.

Exploitation of solar greenhouse in ventilation system of building

The paper deals with on-site measurements of energy benefits resulting from exploitation of a solar greenhouse, which was created in the attic under the southward-oriented glazed roof for pre-heating of the ventilating air.This conception of the solar energy utilisation is used in the residential complex of the senior citizen home in Svitavy, 60 km north of Brno. Based on the data collected with the use of an automation monitoring system during the heating season 2001-2002, the main characteristics of the investigated solar greenhouse operation were established.

A study on the control methods for the radiant floor heating and cooling system in residential building

When applying the radiant floor cooling system using Ondol - the Korean traditional radiant floor heating system - it is important to select a precise control method to maintain a stable room temperature and floor surface temperature and prevent surface condensation. Therefore, it is necessary to systematize various control methods and to conduct a comparative study of the respective control methods so as to be able to control the radiant floor heating and cooling system efficiently.

Indoor air quality of an energy-efficient, healthy house with mechanically induced fresh air

Issues associated with indoor air quality (IAQ) and its impact on occupant health have prompted research into the design and construction of healthy houses. Most of the houses constructed have been upscale housing. An affordable, energy-efficient, healthy house was built at Tuskegee

Levels and predictors of endotoxin in mattress dust samples from East and West German homes

In so far as prevalence of asthma and allergies is different from East to West Germany, a suggestion that it was associated with lifestyle factors was made. The endotoxin levels in dust collected from more than 4000 infants and mothers mattresses were compared. But none of the predictors analyzed and even a combination of predictors can be used as a surrogate for high or low mattress dust endotoxin levels in epidemiological studies.

Estudio tipologico de los locales residenciales segun su sistema de ventilacion natural Study of local housings with their system of natural ventilation

In this paper, different types of local housings have been classified (housing with two facades, housing with two facades in angle or in corner, housing with facade and interior patios, housing with an only facade, embedded housings, in several heights) with the aim of defining the natural ventilation's parameters for them. Then simulations can be made with the selected types along with the validation of results.

Standard 62.2 approved-ASHRAE publishing residential IAQ standard

Standard 62.2. is the first and only recognized Indoor Air Quality standard for residential buildings in United States. It provides a variety of ways to improve at minimal cost the indoor air quality. This standard became official on October 2003. It may be applied to both new and existing houses.

Natural ventilation in dense residential areas: studying alternatives

The provision of adequate naturally generated airflow is a vital component of energy-efficienthealthy buildings. Increasing densification in cities of today acts as a dominant influence onthe wind regime, diverting and obstructing natural wind flow to unpredictable levels.Localized air movement is often inadequate and vastly different from regional magnitudes anddirections and cannot be used as the basis of design.

The French National Survey on Indoor Air Quality: sample survey design

A nationwide survey on indoor air quality will be set up in France in 2003-2004. The aim ofthe survey is to assess household exposure to indoor air pollutants. The target population isthe national housing stock of approximately 24 million permanently occupied housing units.A nationally representative sample of dwellings will be selected based on a three-stagesampling design. At the first stage, the Primary Sampling Units (PSUs) are categorized basedon French territorial divisions. The second stage of the design is the sampling of segmentswithin the PSUs.

Measured IAQ in two new blocks of flats

Two similar blocks of flats have been built for people with respiratory diseases. The buildingshave a clean and effective ventilation system and low emitting building materials. Theventilation system is a centralized supply and exhaust air system, either based on demand(Building A) or user controlled (Building B). Total volatile organic compound (TVOC) levelsand concentrations of ammonia and formaldehyde were measured in one apartment on each ofthe six floors of both buildings before occupants moved in and after 3 and 7 months and afterone year of occupancy.

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