File - This Oct. 2, 2008 file photo show smog shrouding downtown Houston. Houston residents now can have in their pocket the answer to whether ozone levels in the city are too high for their

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File - This Oct. 2, 2008 file photo show smog shrouding downtown Houston. Houston residents now can have in their pocket the answer to whether ozone levels in the city are too high for their asthmatic child to play soccer. A new app available for iPhones and Android smartphones collects data from 74 air and wind monitors throughout the Houston area, giving residents nearly real-time data on smog. (AP Photo/David J. Phillip, File) less 

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Associated Press
Tue, Apr 2, 2013 2:42 PM EDT