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. These lists are not intended to be exhaustive, and the omission of any individual resource does not preclude it from having value.
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…
Marine shellfish poisoning refers to illnesses caused by eating marine bivalve shellfish (e.g., clams, mussels, oysters, scallops, cockles) that contain biotoxins, which shellfish can accumulate when…
Climate change is driving an increase in daily extreme precipitation in Canada, which when combined with other landscape factors, such as urbanization, deforestation, and loss of wetlands, can result…
The provision of safe drinking water across Canada is a responsibility shared across many agencies. At the federal level, Health Canada sets Drinking Water Guidelines for contaminants in drinking…
Recreational water venues such as oceans, lakes, and rivers, attract large numbers of users. Usage is higher in the summer months, although recreational water activities such as swimming, water…
Public swimming pools, hot tubs, splash parks, wading pools, and other treated recreational water facilities are popular recreational water venues, which are regulated at the provincial or…
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…
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…
Bed bugs (Cimex lectularius) are small, elusive, and resilient insects that live by feeding on the blood of mammals, including humans. Bed bug infestations have become prominent worldwide, generating…