Anne-Marie Nicol – The Conversation

A view of Toronto on July 14, 2025, when the Air Quality Health Index rating for the city was over 10, or “very high risk,” from wildfire smoke. THE CANADIAN PRESS/Chris Young

August 11, 2025

DIY air cleaners are an easy and cost‑effective way to help ventilate homes during wildfires

Anne-Marie Nicol, Simon Fraser University and Prem Gundarah, Simon Fraser University

Building your own DIY air cleaner is an easy and cost-effective way to remove smoke and harmful particles from the air.

Part of Canada’s land border with the United States is closed at the Peace Arch border crossing in Surrey, B.C. on April 28, 2020. (THE CANADIAN PRESS/Jonathan Hayward)

March 11, 2021

Closing some of the U.S.‑Canada land border crossings could help control the COVID‑19 pandemic

Kelley Lee, Simon Fraser University; Anne-Marie Nicol, Simon Fraser University; Julianne Piper, Simon Fraser University, and Valorie A. Crooks, Simon Fraser University

Current travel restrictions aren’t applied uniformly for air and land travellers. Similar restrictions need to be applied to land border crossings to curb the spread of COVID-19 and its variants.

A guest looks out from a Sheraton hotel window in Mississauga, Ont., on Feb. 22, 2021, as new air travel rules come into effect in Canada. THE CANADIAN PRESS/Cole Burston

February 28, 2021

COVID‑19 hotel quarantine: Exemption for ‘essential’ medical travel confuses doctors, patients

Valorie A. Crooks, Simon Fraser University; Anne-Marie Nicol, Simon Fraser University; Eric Cadesky, University of British Columbia; Jeremy Snyder, Simon Fraser University, and Kelley Lee, Simon Fraser University

Canadian government travel restrictions are an attempt to curb the spread of COVID-19 variants. But vague language around exemptions for medical travel may confuse the physicians who can grant them.

Une passagère passe par l'aéroport Montréal-Trudeau de Montréal, le jeudi 7 janvier 2021. Les cas de Covid-19 rapportés par les voyageurs sont sous-estimés par la Santé publique. La Presse Canadienne/Paul Chiasson

February 2, 2021

Les cas de Covid‑19 liés aux voyages sont sous‑estimés au Canada. Voici pourquoi

Kelley Lee, Simon Fraser University and Anne-Marie Nicol, Simon Fraser University

Les restrictions de voyage annoncées visent à freiner la propagation des variantes du coronavirus. Mais le système actuel ne collecte pas systématiquement ou rigoureusement suffisamment de données.

Workers prepare to greet passengers at the COVID-19 testing centre in the international arrivals area at Pearson Airport in Toronto on Jan. 26, 2021. THE CANADIAN PRESS/Frank Gunn

February 1, 2021

Why Canada doesn’t know how many COVID‑19 cases are linked to travel

Kelley Lee, Simon Fraser University and Anne-Marie Nicol, Simon Fraser University

Recently announced travel restrictions are intended to curb the spread of COVID-19 variants. However, we need to do a better job of tracking arrivals into the country.

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