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…
Climate change is increasing the frequency, duration, and intensity of the number of very hot days over 30°C in Canada. During heatwaves, the daytime and night-time average temperatures are projected…
Environmental noise refers to unwanted sounds caused by human activity, such as road noise, aircraft, rail traffic, construction noise, building systems (e.g., ventilation or cooling), or…
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…
The transmission of SARS-CoV-2, the virus that causes COVID-19, occurs primarily via direct contact with or respiratory droplets from an infected person. However, there is evidence to suggest that…
Lead is a naturally occurring toxic metal that can be harmful to human health. Health effects of lead exposure can include neurological, cardiovascular, renal, immunological, reproductive and…
Climate change is generally expected to lead to warmer winters, while paradoxically, arctic warming is also leading to more extreme cold events. However, defining extreme cold is difficult in a place…
Antimicrobial resistance (AMR) is the ability of microorganisms to survive in the presence of drugs meant to inhibit or kill them. AMR poses a serious threat to human health, and risks the emergence…