https://www.kxcv.org/tags/ozone Ozone en-US Copyright Mon, 04 May 2026 14:54:41 GMT https://www.kxcv.org/regional-news/2026-05-04/st-louis-among-worst-cities-for-ozone-pollution-report-finds According to the American Lung Association, the St. Louis area experienced an average of 10 high-ozone days each year between 2022 and 2024. Mon, 04 May 2026 14:54:41 GMT https://www.kxcv.org/regional-news/2026-05-04/st-louis-among-worst-cities-for-ozone-pollution-report-finds Sarah Fentem