Ozone in northern Utah hits worst levels in nearly 10 years http://www.heraldextra.com/news/local/ozone-in-northern-utah-hits-worst-levels-in-nearly-years/article_258e4845-8ce0-5c09-84bb-7a0ea8792a43.html … @heraldextra
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Ozone in northern Utah hits worst levels in nearly 10 years http://www.heraldextra.com/news/local/ozone-in-northern-utah-hits-worst-levels-in-nearly-years/article_258e4845-8ce0-5c09-84bb-7a0ea8792a43.html … @heraldextra