Metadata for MMWR on Canadian Wildfire Smoke episodes and asthma ED visits. Portions of this dataset are inaccessible because: Jurisdictions own data with protections under their laws and regulations. NSSP (CDC) has access to data through data-use agreements that allow for reporting at the HHS regional aggregate level. They can be accessed through the following means: For the non-public data, all end users with access are credentialled and must gain access through PIV following CDC approved protocols. All team members with access are CDC employees. For the public data that is associated with the MMWR publication, results will be presented in a visual format showing graphs of ED visit counts and air quality levels in the publication.

Publicly available Aggregated data will be available in CDCStacks library system. For non-public data. Format: Data will be presented in aggregate form during dissemination phase through a publicly accessible MMWR.

This dataset is associated with the following publication: McArdle, C., T. Dowling, K. Carey, J. DeVies, D. Johns, A. Gates, Z. Stein, K. van Santen, L. Radhakrishnan, A. Kite-Powell, K. Soetebier, J. Sacks, K. Sircar, K. Hartnett, and M. Mirabelli. Asthma-Associated Emergency Department Visits During the Canadian Wildfire Smoke Episodes — United States, April–August 2023. MORBIDITY AND MORTALITY WEEKLY REPORT. U.S. Department of Health and Human Services, Washington, DC, USA, 72: 926-932, (2023).