1. Do air quality alerts benefit public health? New evidence from Canada
Jonathan M Samet 
The Lancet Planetary Health 
Volume 2, Issue 1, Pages e6-e7 (January 2018)
DOI: /S (17)
Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license Terms and Conditions

2. Figure The chain of responses to air quality alerts
The Lancet Planetary Health 2018 2, e6-e7DOI: ( /S (17) )
Copyright © 2018 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license Terms and Conditions