English

The aim of this paper is to study the impact of outdoor and indoor sources in a school environment.PM10 and PM2.5 measurements were made inside a portuguese classroom and compared with outdoor PM10 concentration to study the impact of ventilation in respirable particles reduction.

Ozone has direct, and adverse effects on human health. It can initiate reactions that may produce irritating products.The authors present the results of their study on the influence of the reactions ozone-limonene on the perceived air quality (PAQ) . Six different realistic concentrations of ozone and limonene, separately or together were tested in four identical and adjacent offices.

This study developed a CFD technique to investigate indoor airflow patterns combined with PM1, PM2.5, PM10 removal ability in ventilated multi-room buildings.The simulated results showed that coarse particles were easier to be removed out of the building than the fine ones and that indoor partitions increased particles deposition and decreased particle escape.

Finding an effective ventilation system that can contribute to minimizing the airborne transmission of infectious diseases in hospital wards at relatively lower cost was the aim of that study. The authors investigated the penetration of exhalation jets from a lying person and the distribution of exhaled droplet nuclei in a ward with three different ventilation systems (mixing, downward and displacement ventilation).

That study has demonstrated that sensory evaluation is an effective tool for evaluating the impact of sorption on the acceptability of indoor air. For the experiments, samples of carpet and linoleum were used as pollution sources, and samples of painted gypsum board and Semai were used as "sorbents".The sensory panel was composed of different numbers of recruited students .To evaluate the impact of sorption on perceived air quality, the converted results were used in a simple mass balance model .

There is a complex relationship within the disciplines needed to to produce and perceive architecture. In this paper the author proposes a methodology combining quantitative and qualitative methods of analysis of spatial composition.Spatial design theory can contribute to the development of sustainability and the reduction of energy consumption in architecture and building.

A realistic simulation experiment was conducted on students in a climate chamber, the objective of the laboratory experiments was to evaluate the quantitative effects of the air quality and thermal environments on learning performance High-ventilation environment (all outdoor air) and low-ventilation environment (100 % returned air only) were tested. The results were consistent with those found with the field intervention survey.

Air cleaning technologies for VOCs are not well established. One of them is (UVPCO) ultra-violet photocatalytic oxidation technology , practically studied only in laboratory settings, where relatively high concentrations of only few VOCs were employed.
This paper reports an experimental evaluation of the performance of UVPCO devices under real or simulated-real indoor conditions where many VOCs are present at low concentrations.

The main aim of the SOLANOVA project was to transfer the know-how of ultra low energy and passive houses to a sustainable retrofit of the huge stock of obsolete panel buildings in Eastern Europe. There were big controversies about the ventilation system to be adopted, the chosen soltin and justification are presented in this paper along with the first results.

A Task Ambient Conditioning (TAC) system has been adopted in a low-storey building of 20,000 m2 floor area in Tokyo suburb. That system, in conjunction with other design techniques such as double-skin glass and structural thermal storage system proved efficient to achieve comfortable personal work-environment with a reduced HVAC load.