Contaminants and Hazards


Identifying hazards posed by infectious diseases, chemicals, radiation, and noise, in homes and personal service establishments.

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Cannabis poisoning in BC: Insights from poison control centre calls

This blog is a synopsis of a recent seminar entitled “Calls to the British Columbia Drug and Poison Information Centre on the Cusp of Cannabis Legalization”, presented in our 2019 NCCEH Environmental…
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Contaminants in black market cannabis: consumers need answers

Legalization of cannabis in 2018 was intended, among other things, to cut off funding to organized crime by removing revenue streams from the sale of illicit cannabis. Public health broadly supported…
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Cooling Tower Registries and Building Water Management Plans: Strategies to combat Legionnaires’ Disease

There’s something in the aerosols Devices that aerosolize water can increase the risk of exposure to Legionella bacteria through inhalation, leading to serious illness such as Legionnaires’ disease…
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COVID-19 and use of disinfectants and sanitizers in food premises

This blog is based on the NCCEH guidance document Disinfectants and Sanitizers for Use on Food Contact Surfaces to reflect recent developments due to COVID-19. SARS-CoV-2 is the coronavirus…
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Guest Blog: Training and Support for Managing Drinking Water Systems in First Nations Communities in Ontario

As of September 2019, there were 56 long-term drinking water advisories (LTDWA) for public systems on First Nations reserves across Canada. These are either Boil Water advisories or Do Not Consume…
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Physical Barriers for COVID-19 Infection Prevention and Control in Commercial Settings

Maintaining a safe physical distance will be essential to virtually all social and economic activities carried out during the COVID-19 pandemic. However, there are many instances or activities during…
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Summer is coming: Wildfire Smoke + COVID-19

It is meant as an ominous threat when characters in the popular Game of Thrones series utter “winter is coming”, and I feel the same way about the summer of 2020. The catastrophic wildfire seasons of…
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The Detection of Oxycodone in Mussels Collected in Washington State and its Potential Impact on Human Health

The Washington State Department of Fish and Wildlife in collaboration with The Centre for Urban Waters, University of Washington/Tacoma reported detecting “contaminants of emerging concern” (CECs) in…
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Wading through the mire: Keeping up with new and changing Canadian Drinking Water Guidelines

Changes to Canadian Drinking Water Guidelines Over the past year there have been nine new consultations and announcement of eleven new or updated Canadian Drinking Water Guidelines. Keeping up with…
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When hand washing is not handy: Cautions for hand sanitizer use

Washing hands with soap and water for at least 20 seconds is the most effective strategy for removing the COVID-19 virus from hands. In some situations, hand sanitizers can be used as a substitute if…
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