Here's the good news: Dallas-Fort Worth ozone levels for the first this year dropped below the federal standard of 84 parts per billion. The bad news: the 84-ppb standard the area has just now met for the first time is from 1997. The current standard is 75 ppb, well below DFW's 81 ppb mark. Worse still, most scientists consider the newer standard too high and say people exposed to that much ozone are at increased risk of asthma, heart disease and lung disease. For years, scientists and public health advocates have been pushing for a limit closer to 60 ppb.
Wikimedia Commons/Turn 685 TCEQ: Sure it looks bad, but it's not like you're going to leave your air conditioning.
Predictably, Texas disagrees, and not just on the grounds that tougher restrictions will eat into economic growth. As the Texas Tribune>reports, one of the state's top environmental regulators argues that lower ozone levels could actually kill people.
"I haven't seen the data that says lowering ozone will produce a health benefit," Michael Honeycutt, the agency's chief toxicologist told the Tribune. "In fact, I've seen data that shows it might have a negative health benefit."More »