The Austrian Standard ÖNORM S 5200, prepared in the early nineties after a prestandard phase (Steger F.) and in use in Austria since 1996, provides the criteria to assess the radiation dose of building materials. Gamma radiation of the radionuclides 40K,
There is a currently growing interest in the effect of exposure to 222Rn, because it became recognised as an important “pollutant” factor of the environment. Possible lung cancer incidence due to exposure to environmental radon levels may thus account for
If indoor radon levels are to be significantly reduced across Europe it is essential to ensure that allnew buildings built in areas affected by radon are protected against radon.In the United Kingdom the Building Research Establishment Ltd (BRE) have been carrying outresearch on behalf of the Department of the Environment, Transport and the Regions (DETR) todevelop protective measures for use in new buildings. This work commenced in the mid-1980sand has resulted in the development of a range of practical cost-effective techniques for providingradon protection in new UK buildings.
Radon as an indoor air pollutant has been extensively researched worldwide over the past thirtyyears. However, radon is only one of several other important pollutants present in the indooratmosphere. In addition to radon as an ubiquitous indoor pollutant, the simultaneous presence ofother non-radiological pollutants, such as toxic alkanes found in the working environment, needs tobe accounted for its integrated mitigation approach.
Starting from the basic governing equations for fluid flows, a three-dimensional computational fluid dynamics (CFD) code is described. The pre-processing and post-processing software was integrated with the CFD code to form a more user-friendly computer package. This new computer package has been used to carry out several simulations on air and smoke movement in atrium with balconies. It has been found that the pre?processing and post-processing software can greatly reduce the data preparation and analysis time. It can also reduce the likelihood of making errors in data entry.
Simulation of building performance is increasingly being used in design practice topredict comfort of occupants in finished buildings. This is an area of great uncertainty:what actions does a person take when too warm or suffering from glare; how is comfortmeasured; how do groups of people interact to control environmental conditions, etc? Anincreasing attention to model these issues is evident in current research.Two issues are covered in this paper: how comfort can be assessed and what actionsoccupants are likely to make to achieve and maintain a comfortable status.
Then main objective of this work is to create subsidies for an analysis of Predicted MeanVote (PMV) from ISO 7730 (1994), for thermal comfort evaluation in Brazilianworkplaces. The clothing industry in the city of Amparo, So Paulo State, was chosen forthe study. A survey among the workers was carried out through questionnaires, collectingdata about thermal sensation, clothing and workers activities. Dry and wet bulbtemperatures, globe temperatures and air speed were also measured, simultaneously to thequestionnaires.
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