For the third straight day on Saturday, the Kansas City area will be under an orange ozone alert because weather conditions make likely that smog will form.
Active children and adults, and people with breathing problems, are advised to limit prolonged outdoor exertion.
Smog forms when high temperatures interact with pollutants. To reduce air pollution, residents are urged to avoid outdoor grilling, minimize driving and delay mowing their lawns or refueling their cars until after 7 p.m. Bus fares are reduced to 75 cents on ozone-alert days.