Axios

Residents in Monroe County, Pennsylvania (70 miles), Coconino County, Arizona (68.6), and Parker County, Texas (66.7) travel the most daily miles per person among counties with more than 100,000 residents.

The flipside: New York City accounts for all three counties with the lowest number of daily miles traveled — no surprise there, given the area's density.

The U.S. cities with the worst air quality in 2023 — mostly in the Midwest — had particle pollution levels two to three times higher than what the World Health Organization (WHO) recommends, according to a new report.

The big picture: It's not coincidental that the cities with the worst air quality last year were in the Upper Midwest and Mid-Atlantic, as those regions were smothered in smoke from Canada's unprecedented wildfire season.