Indoor Air

During the extended “new normal” of the COVID-19 pandemic, it may be necessary to periodically close public buildings and facilities, followed by re-opening when safe again. Periods of low or no…
View Full Article
Carbon monoxide (CO) is an odourless, colourless, and non-irritating gas that is harmful to humans. As a by-product of incomplete combustion, CO is produced by fuel-burning appliances including…
View Full Article
Topics:
Cannabis, Contaminants and Hazards, Indoor Air, Pesticides
Legalization of cannabis in 2018 was intended, among other things, to cut off funding to organized crime by removing revenue streams from the sale of illicit cannabis. Public health broadly supported…
View Full Article
Cooling Tower Registries and Building Water Management Plans: Strategies to combat Legionnaires’ Disease
Topics:
Contaminants and Hazards, Drinking Water, Indoor Air, Water, Legionella
There’s something in the aerosols
Devices that aerosolize water can increase the risk of exposure to Legionella bacteria through inhalation, leading to serious illness such as Legionnaires’ disease…
View Full Article
Legionella is an opportunistic premise plumbing pathogen (OPPP) that can cause illnesses including Pontiac fever and Legionnaires’ disease, a severe pneumonia named after an outbreak that resulted in…
View Full Article
Topics:
Indoor Air, Mould
Mould is a ubiquitous fungus in outdoor environments that inevitably makes its way indoors. The general population is commonly exposed to mould through inhalation, and less commonly through direct…
View Full Article
Topics:
Contaminants and Hazards, Indoor Air, Radiation
Radon gas is a colourless, odourless, radioactive gas that is released during the decay of uranium in rocks and soils. Radon levels outdoors are generally low, but radon gas indoors poses more of a…
View Full Article