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We have resources on dozens of important environmental health topics presented in various forms including Evidence Reviews, Evidence Briefs and Research Scans, Subject Guides, Blogs, Webinar Recordings, and Videos and Tools. Please see this page for more information concerning these document types. Browse the topics and discover what is available.
Elucidating the community health impacts of odours using citizen science and mobile monitoring
July 6, 2021
Abstract Odours from a wide range of sources can affect local air quality at different times and with different intensities. Unlike air pollutants such as fine particulate matter (PM2.5) and ground-…
Indoor CO2 sensors for COVID-19 risk mitigation: Current guidance and limitations
May 26, 2021
CO2 monitoring is an established tool to assess occupancy and ventilation requirements for indoor spaces, typically for the purposes of increasing energy efficiency. During the pandemic, it is…

Indoor CO2 sensors for COVID-19 risk mitigation: Current guidance and limitations
May 18, 2021
Primary inquiry: Information was requested regarding whether CO2 monitoring could be implemented as a COVID-19 risk mitigation tool in restaurants. Building on a previous NCCEH document in which we…

Contextualizing the risks of indirect COVID-19 transmission in multi-unit residential buildings
March 24, 2021
Introduction Since the beginning of the COVID-19 pandemic, multi-unit residential buildings (MURBs) have been of particular concern to both public health practitioners and MURB occupants. MURBs are…

Reducing wood smoke and protecting indoor air quality is more important than ever during the COVID-19 pandemic
February 23, 2021
Wintertime in Canada sees many of us spending more time indoors. Perhaps even more so this year due to COVID restrictions. Amidst the second waves of COVID-19, we are reminded of the effects the…

Can CO2 sensors be used to assess COVID-19 transmission risk?
January 15, 2021
Ventilation and air cleaning are now recognized as important tools for mitigating the risk of COVID-19 indoors. However, many public spaces are either inadequately ventilated, or their ventilation…

Air cleaning technologies for indoor spaces during the COVID-19 pandemic
December 10, 2020
The COVID-19 pandemic has presented public health with many challenges including how best to reduce transmission of SARS-CoV-2 in indoor spaces, where most transmission events occur. Layering of…

High-humidity environments and the risk of COVID-19 transmission
October 16, 2020
Primary Inquiry: Do showers, steam rooms, hot tubs, or other warm, high-humidity settings in public facilities increase the risk of COVID-19 transmission? Summary Statement: This rapid review did…

COVID-19 risks and precautions for the performing arts
September 23, 2020
Introduction The COVID-19 pandemic has caused major changes to how musicians and performers practise and rehearse and has brought many live performances to a halt. Restrictions have been put in…

Role of ventilation in influencing COVID-19 transmission risk
July 29, 2020
As we return to indoor public spaces, and given the ongoing controversy over whether SARS-CoV-2 can be transmitted in aerosols, there has been intense interest around both the role of ventilation…