Summer Isn’t Coming, It’s Here. Ozone Season Arrives with a Vengeance.

by Downwinders on June 8, 2016

Results of 6-7-16Yesterday was the single worst day for DFW smog in the last three years.

Seven monitoring sites stretching from central Dallas to Weatherford saw hourly averages of 90+ parts per billion. Three sites in Arlington, Northwest Fort Worth and Keller saw levels reach 100 + ppb. Two of those sites saw hourly levels climb to 113 ppb. To give you some idea of how bad that is, the original dreadful, obsolete standard during the 1980's and early 90's was 125 ppb in a single hour. We probably came within an hour or two of reaching a level of air pollution at not one, but two sites yesterday that would have exceeded a 40-year old smog standard. 

14 out of the 20 DFW monitors recorded average ozone "exceedences" that violated the current 75 ppb 8-hour standard (what you see above). Two sites saw 8-hour averages of 95 ppb, the worst showing since September 2013.

It became a hazard to breathe for hundreds of thousands, maybe millions of DFW residents, yesterday afternoon. South Arlington residents experienced unhealthy levels of air pollution from 12 noon to 7 pm. In Keller it was 2  to 7 pm. 

The good news? It could have been worse. The only thing preventing even higher numbers was the changing wind direction in mid-day. Monitors located in Dallas were recording high smog levels in the morning and lunchtime from northerly winds, but then they turned east and the pollution headed west, raising smog levels across broad swaths of Tarrant, Johnson, and Parker Counties. Had the wind been coming from the east all day, you would have seen the numbers those monitors reached at 2 -5 pm happen sooner, with more room to grow. 

Wednesday also looks to be a bad day, as does the rest of the week of full-bore summer sunshine. Bad as they were, none of yesterday's exceedences actually count as a Clean Air Act violation…yet. It takes four bad days where the 8-hour average exceeds the 75 ppb standard over the course of the ozone season to make a violation. Regulators only use the fourth highest smog level recorded at each site to determine the annual average and whether an area is meeting the Clean Air Act standard (you can keep track of those here). Yesterday, nine monitors recorded their first exeedence of the year. Only three more to go. 

However, the region's current reigning bad air champ, the Denton airport monitor, uncharacteristically remained out of harm's way and saw levels barely above the 75 ppb standard in mid-afternoon. It'll have it's chance. Summer is only beginning. 

Purple! 5-7-16Tuesday's smog attack put an exclamation point in front of next Wednesday's Dallas City Council scheduled vote on Councilwoman Sandy Greyson's air quality resolution rejecting the current state plan – ain't it working out swell!? – in favor of a plan to eliminate days like yesterday. 

Greyson's resolution requesting a new and better clean air plan, as well as the staff presentation that provided background information, can be reviewed here. It's similar in content to one passed earlier in May by Dallas County. 

Supporters can sign-up to speak for 3 minutes each when it comes up on the agenda and as always, we'll have plenty of lapel pins with the DFW Clean Air Network logo on them so you can non-verbally support the resolution as well. 

If you want to speak at the Council meeting in favor of clean air, please contact the City Secretary beginning at 8:15 am tomorrow, Thursday, June 9th at (214) 670-3738 to reserve a 3-minute speaking slot  or Item #12 on the "consent agenda." 

Consent agendas are tricky things. They require complete unanimity  among all 15 council members and are usually reserved for the most benign, non-controversial subjects. So at first glance, it's a good thing our resolution is on the list because it implies support from all 15 members.

But, and it's a big but….any member who doesn't agree it should be on the consent agenda can ask that it be taken off and placed in the "Items for Individual Consideration" bin – kind of like going to the back of the line and waiting for all the other business to get done before re-visiting the matter. 

If there's industry opposition, or any opposition for that matter, it would give a council member an excuse to take it off the consent agenda and send it to the back of the line in hopes us cooling our heels and losing speakers as the day wears on. And it only takes one council member disagreeing to do so. This is why we need you to send emails to ALL 15 council members.

Since it's on the consent agenda, at least for now, it'll be among the first orders of business next Wednesday. Supporters need to show up at 9 am sharp.

Dallas passing this resolution would mean that the most populous city in the DFW "non-attainment area" for smog is rejecting the anti-science "do-nothing" approach of the State and demanding a better strategy to actually clean up chronic air pollution. 

That's exactly the kind of statement local governments have to send EPA in order for the federal agency to screw-up enough courage and reject the current state proposal in favor of something better. 

And after yesterday, is there anyone outside of Austin who believes we don't need something better? 

Dallas City Council Clean Air Vote 

Wed. June 15th  9am

Dallas City Hall 1500 Marilla 

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