# Air quality warnings persist as wildfire smoke blankets US

Wildfire smoke continues to spread across the United States, prompting ongoing air quality warnings in many regions. The smoke, originating from multiple fires, poses health risks to millions. This situation underscores the growing impact of wildfires on public health and daily life.

**Importance:** 4/5

## Sources

### World
- [The Guardian World](https://www.theguardian.com/world/2026/jul/18/air-quality-warnings-canada-wildfires) — Sat, 18 Jul 2026 14:13:36 GMT
- [The Guardian World](https://www.theguardian.com/us-news/2026/jul/18/flash-flood-weather-north-east-us) — Sat, 18 Jul 2026 19:11:13 GMT

### Health
- [NPR Health](https://www.npr.org/2026/07/18/nx-s1-5899009/us-canada-wildfire-smoke) — Sat, 18 Jul 2026 14:15:42 -0400