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…
Topic Pages

Topic Pages introduce an aspect of the environment and its relation to public health by featuring a curated shortlist of NCCEH and external resources. The most relevant resources related to a topic 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.
A number of extreme flooding events have occurred in Canada over the last few decades, and as a result of climate change, are growing in both frequency and magnitude.…
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…
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…