The summer of smoke: ecosocial and health impacts of a record wildfire season in the Northwest Territories, Canada

The summer of smoke: ecosocial and health impacts of a record wildfire season in the Northwest Territories, Canada

Abstracts The summer of smoke: ecosocial and health impacts of a record wildfire season in the Northwest Territories, Canada Warren Dodd, Courtney Ho...

NAN Sizes 0 Downloads 0 Views

Abstracts

The summer of smoke: ecosocial and health impacts of a record wildfire season in the Northwest Territories, Canada Warren Dodd, Courtney Howard, Caren Rose, Craig Scott, Patrick Scott, Ashlee Cunsolo, James Orbinski

Abstract Published Online March 15, 2018 University of Waterloo, Waterloo, ON, Canada (W Dodd); Canadian Association of Physicians of the Environment, Yellowknife, NT, Canada (C Howard); British Columbia Centre for Disease Control, Vancouver, BC, Canada (C Rose); Ecology North, Yellowknife, NT, Canada (C Scott); Workers’ Safety and Compensation Commission for the Northwest Territories and Nunavut, Yellowknife, NT, Canada (P Scott); Labrador Institute of Memorial University, Happy Valley-Goose Bay, NL, Canada (A Cunsolo); York University, Toronto, ON, Canada (J Orbinski) Correspondence to: Warren Dodd, University of Waterloo, Waterloo, ON, Canada [email protected]

Background Between June and August 2014, Canada’s Northwest Territories experienced their worst wildfire season on record, with prolonged smoke events and poor air quality. In total, 385 separate fires burned 3 400 000 hectares of land costing CAN$56·1 million in firefighting expenses. In the context of climate change, this study sought to explore the lived experience of the 2014 wildfire season among four communities in the Northwest Territories. Methods Quantitatively, we explored associations between air quality (PM2.5 level), emergency room admissions for respiratory and cardiac events, and dispensations of salbutamol (non-prescription inhaler) during the summer of 2014 compared to 2012 and 2013. Qualitatively, we conducted 30 semi-structured interviews in four communities (Yellowknife, N’Dilo, Dettah, and Kakisa). Interviews were video recorded, and the audio portion of each interview was transcribed to facilitate analysis and theme generation. Findings Between June 15 and August 31, 2014, 55% of days had a PM2·5 above 25 μg/m³, compared to 4% of days in 2012 and 9% of days in 2013. The highest daily PM2.5 in 2014 was 320·4 μg/m³. Emergency room visits for asthma and pneumonia increased in 2014 compared to 2012 and 2013, but the number of cardiac-related visits did not change. Primary care visits for cough, asthma, and pneumonia and dispensations for prescription inhalers (salbutamol) also increased in 2014 relative to 2012 and 2013. Interviewees reported how their experiences of evacuation and isolation and feelings of fear, stress, and uncertainty contributed to acute and long-term negative effects on their mental and emotional wellbeing. Prolonged smoke events were linked to extended time indoors and respiratory problems. Livelihood and land-based activities were disrupted for some Indigenous interviewees, which had negative consequences for mental, emotional, and physical wellbeing. Individual and community stories of adaptation and resilience before and during the summer were shared; however, there was consensus about the need for improved risk communication and coordination at the community and territorial level to address similar events in the future. Interpretation Coordinated community-based education, communication, and adaptation initiatives that are inclusive of local knowledge, values, and context are needed to address the expressed needs of community members associated with prolonged smoke events and wildfire seasons. Funding Health Canada. Copyright © The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY 4.0 license. Declaration of interests We declare no competing interests.

30

www.thelancet.com/lancetgh