California remains the state with the worst air pollution, and Los Angeles is again ranked as the city with the worst air quality in the United States, according to a new report released on April 24. And Los Angeles is not alone. When it comes to smog-covered cities, seven of the top 10 ...

Air quality in Northern California is still the worst in the world, say members of monitoring groups working across the state. This is a direct consequence of the forest fires that have been raging here lately. According to Purple Air, air quality in Northern California on Thursday was...

Air quality has been severely affected in the Napa County, San Francisco and Bay Area Snell bushfires. According to the Air Quality Management (BAAQMD), "smoke from forest fires can affect visibility in the northern and eastern parts of the Bay Area." The agency warns that ...

Smoke from the Siberian fires that began in March reached the west coast of the United States. On April 17, the smoke was recorded in Washington state, and then spread to Oregon and California. The smoke was clearly visible from satellites on April 18 and 19. Due to massive fires ...