Topic Pages

Our topic pages introduce the reader to important and emerging environmental public health issues through a curated list of NCCEH and external resources. The most relevant resources have been selected to best guide the search for further information. Topic pages are reviewed and updated with new content periodically. These lists are not intended to be exhaustive, and the omission of any individual resource does not preclude it from having value.
Recreational waters such as oceans, lakes, rivers, and their associated beaches, attract large numbers of users engaging in primary contact activities (e.g., swimming, water skiing, surfing, paddle…
Public swimming pools, hot tubs, splash parks, wading pools, and other treated recreational water facilities are regulated at the provincial or territorial level with respect to design, construction…
Legionella is naturally occurring waterborne bacteria that can survive within building water systems and multiply under ideal conditions that include warm temperature (e.g., 25-45°C), lack of…
This topic page is intended to help environmental health practitioners understand the guiding principles and public health objectives being used to develop cannabis policy, both federally and across…
The frequency and intensity of Canadian wildfires is increasing due to the changing global climate, as well as long-standing forest management practices. Ever-worsening fire seasons impact…
[Last Updated: Feb 11, 2021]
During the ongoing COVID-19 pandemic, it may be necessary to periodically close public buildings and facilities, followed by re-opening when safe again. Periods of low…
Oil spills are very complex events that, depending on where they occur, may result in acute exposures to nearby human populations. Regardless of the presence of humans, however, oil spills have the…
Cyanobacteria, commonly known as blue-green algae, are naturally occurring microscopic organisms found in fresh, brackish, or marine water that can release cyanotoxins into freshwater systems. These…
BackgroundAspects of the built environment, including man-made and natural features, impact human health directly and indirectly through air quality, traffic injuries, and toxic substances. These…
Floatation or float tanks have resurged in popularity since their initial commercialization in the 1970s. These tanks, pods, or chambers are intended to help users achieve certain physical and mental…