The absolute number of ozone exceedances has generally decreased over the last 15-20 years in the area, but not as rapidly as it has in Los Angeles. Houston may soon top the list for ozone exceedances. So Mothers for Clean Air has a lot of work to do. They know exactly what we're about, and they want to help. And, no, she adds smiling, you don't have to be a mother to join.
Members alert Houston day care centers by fax when there is an ozone exceedance.
On these days they advise children and others to stay indoors. Laping says indoor air has less ozone because most homes have air conditioners and are sealed. One focus is on building membership, now at about 200. Laping also points out that practically no air quality monitoring is done at ground level. She says this is unfortunate because the bottom six feet of air is where most of us live and breathe.