Topic Pages

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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.

Drinking water guidelines and governance

The provision of safe drinking water across Canada is a responsibility shared across many agencies. At the federal level, Health Canada sets…

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Marine Shellfish Poisoning

Marine shellfish poisoning refers to illnesses in humans caused by consumption of marine bivalve shellfish (e.g., clams, mussels, oysters, scallops, cockles) that contain biotoxins (e.g., domoic…

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Cannabis Resources for Environmental Health Practitioners

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…

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Ethnic and Specialty Foods

Topics: Food

The definition of “ethnic food” depends on the geographic and cultural context in which the cuisine is found. Broadly speaking, ethnic foods are defined by others outside of the respective ethnic…

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Cyanobacteria in Freshwater

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.…

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Norovirus

Norovirus is a group of highly contagious viruses that cause short-term gastroenteritis symptoms including nausea, vomiting, diarrhoea, and potentially chills and fever. Norovirus infection can…

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Food Environments

The foods that people choose to consume are influenced by the availability, affordability, and accessibility of foods in the environments in which they live, work, and play. Defined by the built…

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Food Resources

Topics: Food

Public health is affected by the food choices people make, the quality and quantity of food available, and the ways food is produced. The modernization of food systems has resulted in complex…

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Bed Bugs

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…

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Hydraulic Fracturing for the Production of Shale Gas

Hydraulic fracturing (also termed “fracking”) is the process used, along with horizontal drilling, to extract unconventional natural gas (shale gas, tight gas or coalbed methane) and tight oil…

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