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The Conversation
The Conversation
Andrew J. Whelton, Professor of Civil, Environmental and Ecological Engineering, Purdue University

Wildfires can contaminate nearby homes and water systems – here’s what Spokane’s returning residents need to know

Smoke from burning buildings and vehicles, such as Spokane, Wash., experienced in August 2026, can carry harmful pollutants into neighboring homes. Josh Edelson/AFP via Getty Images

When fire evacuation orders are lifted and residents start returning to burned neighborhoods, many people assume “cleared to return” means “safe.” It rarely does.

As an environmental engineer who has worked with communities recovering from some of the most destructive wildfires in U.S. history, I have seen the same pattern repeatedly: Families return to still-standing homes, turn on taps without knowing whether plumbing has been contaminated, and view debris removal as the end of recovery when it is often only the midpoint.

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