Arizona air quality ‘equal to smoking 99 cigarettes a year,’ study finds

A new study analyzed the air quality around Arizona, and found that breathing the air here is equivalent to smoking 99 cigarettes per year.

Researchers at HouseFresh measured the average PM2.5 concentration (fine particle pollution that can be inhaled into the lungs) across America and converted the results into their cigarette equivalent.

You can view the full study here: https://housefresh.com/the-worst-u-s-states-for-air-quality/

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They found that Arizona has an average daily PM2.5 concentration of 6 µg/m³. One cigarette has approximately 22 µg/m³ PM2.5 concentration.

The study goes on to find the best and worst places in Arizona:

Nogales has the worst air quality in Arizona , at 10.4 µg/m³ (Equal t