Latest Breaking News On - Nhealthy pollution from wildfire smoke has become dangerously common - Page 1 : comparemela.com

A decade ago, about 200,000 Californians lived in areas where they were exposed to extreme smoke. By 2020, 4.5 million did.

United-states
Sierra-nevada
California
Siskiyou
Oregon
San-joaquin-valley
Central-valley
Washington
Stanford-university
Tehama
Californians
Kari-nadeau