Seasonal Ozone Advisory Issued Through September The Citizen 6 years ago Seasonal Ozone Advisory Issued Through September Source: Clark County Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Seasonal Ozone Advisory Issued Through Sept. 30DateMarch 30, 2018In relation toCalNevAriAir Quality Advisory Issued For OzoneDateJune 20, 2018In relation toCalNevAriOzone Advisory Issued for Saturday and SundayDateJune 29, 2018In relation toCalNevAri