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Civil and Environmental Engineering

Indoor air quality

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Full-Text Articles in Nanoscience and Nanotechnology

Design Of A New Test Chamber For Evaluation Of The Toxicity Of Rubber Infill, João F. Gomes Jan 2011

Design Of A New Test Chamber For Evaluation Of The Toxicity Of Rubber Infill, João F. Gomes

João F Gomes

A test chamber was projected and built (according to ISO 16000-9 Standard) to simulate atmospheric conditions experienced by rubber infill (when applied in synthetic turf pitches) and measure accurately the airborne emissions of pollutants such as dusts and volatile organic compounds (VOC), as well as pollutants present in leacheates. It should be pointed out that standard ISO 16000-9 is only concerned with the determination of the emission of VOC from building products and furnishing (not specific of synthetic turf materials), while other standards are concerned with the emission of leacheates only. This procedure is to be considered as a technical ...


Deriving An Indoor Environmental Index For Portuguese Office Buildings, João F. Gomes Jan 2007

Deriving An Indoor Environmental Index For Portuguese Office Buildings, João F. Gomes

João F Gomes

The EC issued a Directive in 2002 aiming to reduce the energy consumption of buildings, which was adopted by the EU member states and came into force in 2006. Portugal adopted it by issuing law decrees in 2006 which considered not only the energy saving aspects but also additional specific measures aiming to protect indoor air quality (IAQ). This new legislation is now being enforced and it will be necessary to define compliance acceptance levels for the prescribed indoor air limits. The use of comfort or environmental indexes could be of considerable help in order to ameliorate the evaluation of ...


Measurements Of Indoor Air Pollutant Levels In A University Office Building, João F. Gomes Jan 2007

Measurements Of Indoor Air Pollutant Levels In A University Office Building, João F. Gomes

João F Gomes

This work consisted of a series of determinations performed in typical rooms of a building belonging to the Technical University of Lisbon, which is located in a central urban area of Lisbon. The main objective was to evaluate the Indoor Air Quality (IAQ) of the rooms so that further corrective measures could be taken if unsatisfactory IAQ levels were to be found. Correlations were derived, between indoor and outdoor pollutant concentrations, in order to assess the existence of contaminations coming from outside. Also, correlations were derived between total volatile organic compounds (VOC) concentrations and specific individual organic species measured in ...


Fume Emissions During Metal Arc Welding, João F. Gomes Jan 2006

Fume Emissions During Metal Arc Welding, João F. Gomes

João F Gomes

No abstract provided.


Analysis Of Welding Fumes: A Short Notice On The Comaprison Between Two Sampling Techniques, João F. Gomes Dec 2004

Analysis Of Welding Fumes: A Short Notice On The Comaprison Between Two Sampling Techniques, João F. Gomes

João F Gomes

No abstract provided.