California is usually thought-about one of the crucial scenic states within the U.S., however it’s also the nation’s chief in cities with essentially the most polluted air. [some emphasis, links added]
That’s based on the just-released 2026 “State of the Air” survey by the American Lung Affiliation. It evaluates metropolitan areas based mostly on three key metrics: Ozone air pollution, short-term particle air pollution (24-hour spikes), and annual particle air pollution.
5 California cities dominated the highest ten checklist of “year-round particle air pollution,” in addition to rating excessive in ozone manufacturing and short-term particle air pollution.
A complete of eight of the Golden State’s cities additionally ranked within the high 25 most polluted cities within the nation.
Bakersfield and the encircling Delano space have remained essentially the most polluted by way of “year-round particle air pollution,” out of 211 American metropolitan areas, based on the report.
4 different California metro areas have been discovered within the high ten for year-round particle air pollution: Fresno-Hanford-Corcoran at quantity 4, San Diego-Chula Vista-Carlsbad and Visalia tied at quantity 5, and Los Angeles-Lengthy Seashore at quantity 7.
Different California cities on the year-round particle air pollution checklist embrace the Bay Space cities of San Francisco, Oakland, and San Jose in a tie at quantity 13, with El Centro rounding out the checklist at quantity 21.
When it comes to short-term [particulate] air pollution, Bakersfield improved from first on the checklist final yr to 3rd, with Fairbanks, Alaska, taking the primary spot.
Los Angeles once more ranked first out of 226 metropolitan areas in ozone manufacturing, a doubtful title it has held in 26 of the 27 years of reporting.
In line with the report:
“Floor-level ozone, generally referred to as smog, is among the most widespread and harmful pollution in america. Scientists have studied the consequences of ozone on human well being for many years. Lots of of research have confirmed that ozone harms folks at ranges at the moment discovered in lots of elements of america.
“Years of scientific analysis have clearly established that particle air pollution and ozone are a menace to human well being at each stage of life, growing the danger of untimely delivery, inflicting or worsening lung and coronary heart illness, and shortening lives. Some teams of individuals are extra liable to sickness and loss of life than others, as a result of they’re extra more likely to be uncovered, are extra susceptible to well being harms, or usually each.”
The report additionally concluded that “44% of Individuals — 152.3 million folks — reside in locations that get failing grades for unhealthy ranges of ozone or particle air pollution.”
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