Ozone Season Underway
Clark County Air Quality officials are advising residents that weather conditions and levels of pollutants this summer may trigger a buildup of ground-level ozone in Southern Nevada from May through September. More information about anticipated levels of ozone pollution in the Las Vegas Valley is available at www.ClarkCountyNV.gov. Ozone is a gas that occurs naturally in the upper atmosphere and protects earth from the sun's harmful ultraviolet rays. At ground level, ozone is a key ingredient of urban smog during the hottest months of the year in Clark County. Ground-level ozone can build up during the afternoon hours due to a combination of several factors, including strong sunlight, hot temperatures, and pollutants from automobiles and other sources such as transport and wildfires. Unhealthy doses of ground-level ozone can reduce lung function and worsen respiratory illnesses such as asthma or bronchitis. Exposure to ozone also can induce coughing, wheezing and shortness of breath even in healthy people. When ozone levels are elevated, everyone should limit strenuous outdoor activity, especially people with respiratory diseases. Officials suggest these tips to help reduce the formation of ground-level ozone: Fill up your gas tank after sunset. Plan errands so they can be done in one trip Try not to spill gasoline when filling up, and don't top off your gas tank. Keep your car well maintained. Use mass transit or carpool. Don't idle your car engine unnecessarily. Walk or ...Asthma — Comprehensive overview covers symptoms, treatment of this
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