They’ve been part of the Houston landscape for decades: giant flares that burn off explosive gases from refineries and petrochemical plants. But the pollution they emit, as well as exhaust from many thousands of vehicles, has been reduced in Houston.
The amount of ozone that’s created by pollution when hit with sunlight used to exceed federal standards several dozen days a year in the 1990s. But in recent years, ozone has exceeded standards by only 11 days a year on average.
Yet, the federal Environmental Protection Agency is expected to announce new, stricter ozone standards — standards Houston could have a tough time meeting.
News 88.7 energy and environment reporter Dave Fehling explains.
MORE: EPA’s New Smog Rules Target Industries In Houston (News 88.7, Sept. 29, 2015)