La conception de la ventilation peut influer sur le transport des aérosols infectieux dans les immeubles, ainsi que sur la consommation d’énergie de ces derniers. La ventilation par déplacement d’air devrait permettre de réduire la transmission des aérosols et la consommation d’énergie. Stantec est une société qui fournit des services professionnels de design et de […]

Les contaminants peuvent être graduellement séquestrés dans le sol par le travail de différents processus chimiques et biologiques. Les contaminants séquestrés n’ont pas d’effets toxiques sur les plantes et les animaux vivant dans le sol, même s’ils sont détectables par des méthodes chimiques. Ainsi, la concentration d’un contaminant dans le sol peut excéder la norme […]

Ventilation design can influence the transport of infectious aerosols in buildings as well as the energy consumption of the building. Displacement ventilation (DV) holds the promise of reducing aerosol transmission and energy consumption. Stantec, a provider of professional design and consulting services in planning, engineering, architecture, surveying, and project management, has already investigated DV in […]

Contaminants can become “trapped” in soil over time because of various chemical and biological processes. Trapped contaminants do not cause toxic effects in plants and soil animals even if it is detectible by chemical methods. Therefore, soil contaminant concentration can exceed established safety standards but represent minimal risk to soil organisms if the contaminant is […]

Domestic/municipal wastewaters in rural areas are often treated using septic tank systems which are often not very efficient. Because of this, effluent from septic systems often pollutes rivers, lakes and groundwater. To address this, Stantec, along with Ecowork of Japan, is interested in evaluating an innovative septic system for Essex, Ontario, where a pilot unit […]

  The Simulated Earthworm Gut (SEG) is a new technology that can be used to strengthen the tests used to assess the hazards posed by environmental pollution. However, before the SEG can be used in risk assessment we must demonstrate that it reflects existing techniques. The objective of this project is to compare the results […]

Contamination of soils and groundwater with gasoline often results in the development of anaerobic zones. Benzene is particularly persistent under anaerobic conditions even in the enhanced anaerobic biodegradation (EAB) process. Degradation of benzene has been demonstrated under nitrate-reducing condition, and sulphate-reducing condition. However, information of dominant indigenous species within the microorganisms for degrading benzene is […]

The project focuses on the development of some HPC mixtures using concrete materials available in Newfoundland. The developed HPC mixtures can be successfully used by concrete suppliers in Newfoundland area especially for the construction of marine and offshore structures. The project also aims to provide data-based analysis on the service life of some local concrete […]

Based on the evaluation of modelled soil vapour concentrations it is common for soil contaminants of concern (i.e., volatile contaminants) to pose a potential health risk to receptors via the soil-to-indoor air vapour migration pathway. However, it is understood that the approach used to model vapour concentrations in indoor air, though acceptable to the Ontario […]

The design and quality of the indoor environment is understood to play an important role in the well-being and productivity of building occupants. While many building and design strategies have been employed to enhance the indoor environmental quality of workplace environments there is a surprising a lack of empirical evidence drawn from buildings in-use that […]

Corrosion of internal reinforcement of concrete bridges represents a significant issue. Due to a presence of deicing salts, cycles of freezing and thawing, sustained and repetitive loads, the concrete loses its ability to protect the internal reinforcement. Unprotected reinforcement starts to corrode sooner than anticipated and, therefore, reduces the bridge service life. To avoid shortening […]

Private car dependence represents a significant problem and a major obstacle towards a more sustainable future. A good combination of different modes of transportation can create an opportunity to overcome this issue. In this sense, integrating car sharing into Transit Oriented Development can be an ideal combination to promote a smart and sustainable development. This […]