Pollution Makes you Fat

Prenatal exposure to high levels of air pollution double the likelihood of children becoming obese in a new study by Columbia University's School of Public Health released last week. Its one of the first reports to definitively link chemical pollutants to weight gain. Pregnant women who lived in areas where they were exposed to abnormal amounts of Poly Aromatic Hydrocarbons, or (PAHs), were more than twice as likely to have children who were obese by age seven than women who had lower exposure to the chemicals. PAH's are a pretty common pollutant which come mostly from the burning of fossil fuels. This news comes on the heels of a new study of the danger of chemicals known as endocrine disruptors, which can reek havoc with a person's hormones. Animal studies had already shown that PAHs inhibit the release of fat in the body, decrease IQ increase behavioral disorders. And oh yeah, PAHs can also give you cancer. There are many causes for weight gain in the US. Could one of them have anything to do with our swimming in a sea of 80,000 chemicals, only a handful of which are fully understood, much less regulated to reflect the current science?   
 

 

Community Meeting on Drilling in Dallas in Mountain Creek on Tuesday

Dallas Residents at Risk is taking its road show on fracking and the City's new gas drilling ordinance to southwest Dallas this Tuesday night,May 8th beginning at 7pm at the Harmony School, 8120 West Camp Wisdom Road. Along with northwest Dallas and West Dsllas, Mountain Creek is the site of some of the densest gas lease activity in the city. Longtime citizen activists Ed and Claudia Meyer will be hosting the event in their own neighborhood this time, with Downwinders Jim Schermbeck, Texas Campaign for the Environment's Zac Trahan, Sharon Wilson of Earthworks and the Blue Daze drilling blog, members of the gas drilling task force and other special guests. Don't forget that the Dallas City Council will be getting its first briefing on the gas drilling issue in a year on Wednesday, May 16th in the 6th floor Council Chambers at City Hall starting a 9am. If you can be there for this important milestone event, please attend and show your support for a stronger, more protective gas drilling ordinance for Dallas.

Frisco Unleaded Meets Tonight Amid Rumors and Rumblings

Downwinders' affiliate Frisco Unleaded is having a public meet and greet tonight beginning at 7 pm in a back room at Matitto's on the Square in Frisco. It's the group's first public meeting since it sent out thousands of mailers to Frisco households about the dangers of continuing to let the Exide lead smelter operate in the middle of town. That mailer, along with the media attention it received, prompted the city to set a June 18th hearing date to move forward with amortization of the smelter. Local attorney Jim Schnurr will come and give an encore and revised version of his "Amortization 101" presentation that initiated Frisco Unleaded's first public meeting back in September. They'll also be a preview of the EPA/TCEQ "open house on May 21st, and a citizen's slide show of Exide that's ready to be shown in from of any interested group. Meanwhile, municipal election are May 12 and there seems to be unanimity among all four Council candidates that Exide has to go, although some are more blunt than others. From an anonymous tip over the digital transom comes news that that the TCEQ has found lots of hazardous waste in the Exide "non-hazardous" waste landfills. We're tracking this down and expect to have an update shortly. If true, this news ought to shore up the City's case for amortization, since no zoning has ever authorized hazardous waste disposal at the facility. And besides all this, is the city still trying to work a deal with Exide that "buys-out" the smelter? If it is, what impact will finding a lot of hazardous waste onsite do to the cost of such a deal? Digging up and re-disposing of a hazardous waste landfill or two isn't cheap. If you live in Frisco or know someone who does, you really owe to yourself to come out and find out what can be done to accelerate removal of the smelter and meet the brave citizens who are pushing the issues toward progress.

Scrubbing VOCs Out of the DFW Ozone Problem

(NOTE ON GRAPHICS: Pie chart on the right  hand side is from 2012 estimates from the Texas Commission on Environmental Quality as part of the DFW State Implmentation Plan submitted to EPA in December 2011. Pie chart on the left hand side is from the Texas Commission on Environmental Quality for 2009 and still being used by the state)

Since DFW was first identified has having a smog problem in the mid to late 1980's, there's a standard formula that's become familiar to folks in local air quality: NOx and VOCs + Sunlight = Ozone.

There have always been two primary culprits to North Texas' chronic smog problem. NOx, or Nitrogen Oxides which primarily come from combustion sources (engines, boilers, furnaces), and VOCs, or Volatile Organic Compounds that are mostly invisible plumes and fumes from things like gasoline pumps, storage tanks, as well as combustion. These pollutants combine with sunlight and heat that chemically interacts with them and forms ozone downwind.

When the first air pollution control measures were adopted, Austin and the EPA agreed that VOCS were the driving force DFW ozone levels. Some old-timers may remember the Mrs. Baird's bakery on the West Freeway in Ft. Worth having to install controls that eliminated the smell of baking bread that was stout enough to waft across the highway. That's also why every gas pump in Collin, Denton, Dallas, and Tarrant Counties has a "Vapor Recovery Unit."

Over the years, the blame shifted to a combination of VOCs and NOx, and that's what made it possible to bring large NOx polluters like cement plants and coal plants into the picture. Still, VOC emissions remained a major player in the DFW smog problem, and they've been addressed with controls on everything from solvents, to boat resins, to bakeries by every single clean air plan ever drafted by the state and EPA.

But now Austin is saying VOCs aren't such a big problem after all, that DFW's smog is all about the NOx. Why? Austin's computer model says so. This is the same computer model that says DFW ozone levels will reach historic lows this summer. But might there be another reason? TCEQ's de-emphasis on VOCs coincides precisely with a very large jump in VOC pollution from the gas industry, a jump due to the explosion of drilling in the Barnett Shale and the government's lack of regulation to control it. In 2006, cars and trucks in DFW still spewed more VOCs than the gas industry. This year, the gas industry will release 30 MORE TONS PER DAY of VOCs than all the cars and trucks in DFW combined according to the TCEQ itself. But you'd never know it from looking at any of the public material the TCEQ produces about DFW's ozone problem. Instead it's all NOx all the time.

This slant benefits a politicized TCEQ in a couple of ways. First, when you talk about NOx, you don't have to talk about the doubling of gas industry emissions over the past decade or so. Second, you can keep repeating the mantra that it's all about cars. Cars only produce about 15% of the VOC pollution in DFW vs 49% of all NOx in North Texas. No need to worry about new controls on cement plants or coal plants when it's really all about cars. Until today, that TCEQ message creep was showing up locally in websites and promotional material sponsored by the North Central Texas Council of Governments (NCTCOG) made up of area municipal and county governments. 

Unlike in past years when the familiar formula of both NOx and VOcs was recited to the public, this year NCTCOG's Air North Texas site, Air Facts page trumpeted that "On road vehicles cause half of the ozone forming emissions. Ozone forms when nitrogen oxides (NOx) combine with sunlight and intense heat." That just wasn't true. When you combine all VOC and NOx emissions (as calculated by TCEQ) in DFW, on-road vehicles account for 29% of ALL ozone forming emissions. Point Sources like cement plants and other industrial facilities, combined with oil and gas sources, total 25% – a much different looking pie chart than when you use NOx emission alone.

To its credit, as a result of our inquiry, the NCTCOG Air North Texas "air facts" page has been re-edited to put VOCs back into the equation as of today, along with a little bit of spin claiming that "historical emphasis has indicated NOx reductions are the most appropriate way the region can lower ozone levels." We label that spin because it relies totally on the TCEQ's point of view, which has been, how do we put it, "historically wrong." We've already discussed how the DFW smog problem began as just a VOCs problem. We know they're still a factor. And if NOx reductions alone are so darn effective, why haven't they worked better? According to the TCEQ, total NOx pollution from ALL DFW sources decreased by almost 150 tons per day over the last six years. And yet 2011 was the worst ozone season since 2007. VOC Pollution? It's increased by 17 tons per day despite almost every individual category going down, save the ambiguous "Area" sources and emissions from the Oil and Gas industry.

So if NOx decreases ozone so much more effectively than VOC decreases, how come 2011 ozone levels didn't reflect that? Many public officials around the country cite scientific evidence that already smoggy air turbocharges the ability of gas patch pollution to create more ozone. Usually very weak VOC molecules are transformed into smog-producing machines. TCEQ refuses to factor in this scientifically validated increased reactivity of VOCs being released by gas sources despite predominate winds carrying already smoggy air into the heart of drilling country in Tarrant, Denton, Wise, and Johnson Counties. It's model doesn't recognize this phenomena happening. 

TCEQ may also be underestimating the ability of these weak VOCs to already make ozone. In her 2011 landmark "Leaking Money" report for Downwinders, Dr. Melanie Sattler wrote that just the sheer volume of new gas industry VOCs is enough to affect DFW ozone levels.

If DFW is ever going to solve its chronic smog problem, it has to have reliable information about what the increase in gas industry pollution is doing to our air. We don't have that now and no one in Austin is interested in finding out. Local leaders would be wise to decouple themselves from the TCEQ's politicized and uncurious approach to DFW air quality planning in Austin and find funding for their own research that can test for things the state doesn't want to know….

Here's the full statement of Chris Klaus, Senior program Manager at NCTCOG and the lead staff person ther for all things air: "We appreciate your e-mail and comments regarding air quality facts and information on our Air North Texas and the North Central Texas Council of Governments’ (NCTCOG) websites.  We welcome and value this type of input.  In regards to your comments, historical emphasis has indicated NOx reductions are the most appropriate way the region can lower ozone levels.  Of the primary emission sources, on-road vehicle activities account for nearly half of the NOx inventory.  We frequently discuss NOx and VOCs when providing outreach, and have updated the Air North Texas website to make sure VOCs are referenced when appropriate.  Air North Texas is meant for the general public, and NCTCOG staff feels it is more effective to educate them about what they can do to improve air quality, and how to protect their health and the environment." 

Endocrine Disruptors Linked to Birth Defects in Midlothian Make the NYT Opinion Page

In today's New York Times, columnist Nicolas Kristof writes extensively about the threat of endocrine disruptors – those chemicals that, instead of killing you outright, do strange and horrible things to your hormones and reproductive systems like genital deformities, breast cancer, infertility, diabetes and even obesity. Endocrine disruptors are everywhere, in food, cosmetics, even the receipts you get at the grocery store or your ATM machine...and the air pollution from many kinds of facilities.  It's the hormone-wrecking properties of one such chemical – bisphenol-A, or BPA, used to line food cans – that prompted eight medial organizations representing MDs in the fields of genetics, gynecology, and urology to say BPA should be banned from the marketplace last year. But it's clear that there are many, many chemicals, including less exotic ones like lead, and dioxin, that also act as hormone disruptors in the body. As Kristof explains, scientists know that even the tiniest variations in hormone levels influence fetal development. Endocrine disruptors play a kind of birth defect roulette as they course around the mother's body and end up in the fetus' bloodstream. In making his argument, Kristoff uses the example of a very specific birth defect, Hypospadias – a misplacement of the urethra – is now twice as common as it used to be and cites a leading researcher linking this trend to increased exposure to endocrine disruptors.  Why is this important for North Texans? Because the federal Agency for Toxic Substances and Disease Registry (ATSDR) found that the incidence of Hypospadias was approximately four times higher in Midlothian than the state of Texas as a whole. Remember, everyone is exposed to a constant sea of endocrine disruptors just from everyday living, so that wouldn't explain the much higher rate of a specific birth defect linked to the chemicals in Midlothian. But maybe operating three huge cement plants plus a steel mill could.  That same ATSR study – officially "inconclusive," also found a much higher rate for Microcephaly, where the newborn's head is more than two standard deviations smaller than the average, and Craniosynostosis, a condition in which one or more of the skulls' fibrous sutures prematurely fuses. That was only one study of a specific area. We know the Frisco lead smelter generates large quantities of dioxin. We don't know the impact of those releases. We know that gas drilling also involves a lot of chemicals identified a endocrine disruptors, but we don't how the last decade of urban drilling in the Barnett Shale has dispersed them or what their cumulative effect has been. According to Kristof, many scientists have seen enough proof and now want to better protect us from the dangers of endocrine disruptors. "For several well-studied endocrine disruptors, I think it's fair to say that we have enough data to conclude that these chemicals are not safe for human populations," according to Dr. Linda Vandenberg, who was the lead author of a new report we featured last month that concludes there are no safe doses for these kinds of chemicals. When it comes to the effects of chemical exposure, government regulations often lag far behind the science. How long will it take this warning to be implemented into public health precautions? And why don't we have a system that examines the possible impact to human health of a chemical BEFORE it's released into the marketplace?

More Details on the New DFW Smog Boundaries and Timeline

First, if you haven't read our updated post below, please notice the correction to Tuesday's initial story. DFW's "Moderate" classification by EPA under the new 75 ppb ozone/smog standard is actually a more serious ranking than Houston's "Marginal" ranking. In fact, areas with Marginal status are expected to be able to achieve the standard without even having to submit a clean-up plan with special pollution control measures. That's right, for the first time in forever, Houston won't even have to submit a "SIP" – State implementation Plan – while DFW will have to write yet another one, the fourth one in 15 years. According to EPA's announcement, most metropolitan areas were classified as "Marginal," identifying North Texas right off the bat as one of the more seriously smoggy places in America (but still way behind parts of California with an "Extreme" label slapped on the LA basin, and "Severe" for three more separate areas.) Most of DFW's sunbelt peers have fared better than our metormess. Atlanta started out at the same place as DFW 15-20 years ago, but has cleaned up its act enough to rate a "Marginal" in this round. Phoenix is also "Marginal." But of course neither one of those has a major natural gas play in the middle of them. Second, the timeline for the next DFW's next smog plan is known. The clock begins ticking 60 days after the new designations are published in the Federal Register – sometime between July and September of this year. From that date, DFW leaders and the Texas Commission on Environmental Quality have exactly three years – until the summer of 2015 – to design and build a new clean air plan for DFW that will meet the 75 ppb standard. We have a three year running average of 90.6 ppb. Not to worry however. TCEQ has already told us that ozone levels will drop to historic new lows this summer thanks to so many new cars being bought. On the outside chance that doesn't happen, the Rick Perry- driven TCEQ will have to find some other nonsensical rationalization for avoiding new controls on the Governor's industrial contributors – cement plants, the gas industry, and power plants, like they did last year with the new car strategy. But don't look for Austin to even start working on this clean air plan until 2014. There's no rush because the agency doesn't believe the 75 ppb standard is even necessary. The Commission's leadership was vocal in its opposition against it.  If local leaders were smart, they'd disconnect their own clean air efforts from the state's and begin doing their own planning immediately, but traditionally they don't move until TCEQ says "jump". Add to this the new element of regional elected officials who, like Governor Perry, not only don't want to impose any new controls on industry, but don't even concede the value of cleaner air, and you already have a formula that's in danger of repeating last year's Worst Clean Air Plan Ever. 2015 isn't that far away, but without a serious overhaul of the regional air quality planning process, hope of meeting the new smog standard seems further than ever. By the way, counting our correction of the original story we ran on Tuesday, we've now published three posts on the new smog boundaries and deadlines. That's three more than any other source that we can find this morning.

Wise In, Hood Out: EPA Sets New Smog Boundaries for North Texas

A previous edition of this post defined Houston's EPA rank of "Marginal" has being more sever than DFW's EPA rank of "Moderate." This was a mistake. In fact, it's just the opposite. "Moderate" is more severe under EPA's ranking than "Marginal." We regret the error. Thanks to a reader for pointing it out.)……….At around closing time came news that the EPA had finalized the boundaries of the new "non-attainment area" for smog in North Texas that corresponds to enforcement of the "new" 75 ppb ozone standard approved last year. The 9 counties that were already in violation of the older standard are still there: Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, and Tarrant. The only new addition is Wise County, but it's a huge one given its prodigious amount of gas industry pollution and commuter traffic to Tarrant and Denton Counties. It also means that Wise County will be getting an ozone monitor. If it's placed correctly by TCEQ – and that's a big if – it could be giving us a much truer understanding of how high or low ozone levels are really going. Since predominant winds during "ozone season" (April -November) are from the southeast to northwest, much of DFW's dirty air gets pushed into Wise County, where it then officially falls off the map because there's no air monitors there to record it. TCEQ likes it that way because ozone readings in Wise – where DFW dirty air meets gas patch emissions – could be significantly higher than in most of the rest of DFW. And that would dampen the Austin happy talk about improving DFW air quality. Also coming to Wise are things like those Vapor Recovery units on gasoline pumps, and other stricter pollution control requirements – although the impact on the entrenched gas industry infrastructure already there is unclear. Hood County was also singled out by EPA for inclusion in the non-attainment area but is left off this final order. It also has a number of gas industry facilities, including compressor stations, although most have shown up over the last ten years as opposed to Wise, which has seen decades of oil and gas production. There was no explanation for Hood exclusion in EPA's letter. DFW will be classified as a "Moderate" non-attainment area under the new standard while Houston will get a less severe "Marginal" classification. Dallas and Houston remain Texas' only non-attainmenta areas for smog, although that could certainly change over time. Next up is EPA's determination of the compliance timeline for all non-attainment areas. The worse the air, the more time a region has to clean it up. Officials don't have to get serious about cleaner air until around 2015 for a 2017-18 deadline. That''s been the pattern up to now – keep waiting until the last minute to think about how to dig yourself out of a multi-decade deep hole. And believe us, with this process, 2 years is "the last minute." There could be all kinds of useful planning and researching going on right now but they'll be none of that.  Because insuring receipt of federal highway dollars, not protecting public health, has been the primary motivating factor behind the clean air machinery in North Texas. Until those priorities are reversed and clean air is sought for its own worth, we're likely to always be behind the curve, chasing "unattainable" smog standards.  Read More

Be There: May 16th Dallas City Council Briefing on Gas Drilling

Wednesday, May 02, 2012

The Dallas City Council will be getting a briefing by members of the Dallas gas drilling task force about its controversial recommendations at the May 16th council briefing meeting. Things begin at 9am and take place in the Council Chambers on the 6th floor of City Hall. Besides getting a summary from Chair Lois Finkelman, each council member will be able to ask their task force appointee questions regarding the recommendations, so it could get interesting when Councilmember Davis decides to ask her task force appointee, Downwinders board member Cherelle Blazer, what she thinks. And will the Mayor have the gumption to ask his Parks Board Prez, Joan Walne why she voted to drill in city parkland? This is the first time gas drilling as been on the Council's agenda since the task froce was created last year. We know it's a work day, but if you can, you really need to make it downtown to be in the audience and show your support for a better drilling ordinance than the one being recommended by the task force, which rollbacked previously agreed-to protections at its very last meeting with any warning or public hearings. This is shaping up to be a very, very close vote. Your participation is critical in the most important environmental issue to face Dallas in the last 20 years.

Wise County in, Hood Left Out: EPA Declares New Non-Attainment Area for Smog in North Texas

At around closing time came news that the EPA had finalized the boundaries of the new “non-attainment area” for smog in North Texas that corresponds to enforcement of the “new” 75 ppb ozone standard approved last year. The 9 counties that were already in violation of the older standard are still there: Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, and Tarrant. The only new addition is Wise County, but it’s a huge one given its prodigious amount of gas industry pollution and commuter traffic to Tarrant and Denton Counties. It also means that Wise County will be getting an ozone monitor. If it’s placed correctly by TCEQ – and that’s a big if – it could be giving us a much truer understanding of how high or low ozone levels are really going. Since predominant winds during “ozone season” (April -November) are from the southeast to northwest, much of DFW’s dirty air gets pushed into Wise County, where it then officially falls off the map because there’s no air monitors there to record it. TCEQ likes it that way because ozone readings in Wise – where DFW dirty air meets gas patch emissions – could be significantly higher than in most of the rest of DFW. And that would dampen the Austin happy talk about improving DFW air quality. Also coming to Wise are things like those Vapor Recovery units on gasoline pumps, and other stricter pollution control requirements – although the impact on the entrenched gas industry infrastructure already there is unclear. Hood County was also singled out by EPA for inclusion in the non-attainment area but is left off this final order. It also has a number of gas industry facilities, including compressor stations, although most have shown up over the last ten years as opposed to Wise, which has seen decades of oil and gas production. There was no explanation for Hood exclusion in EPA’s letter. DFW wil be classified as a “Moderate” non-attainment area under the new standard while Houston will get a more severe “Marginal” classification. Why? Because the EPA uses a formula based on percentage above the new standard and Houston has traditionally had higher readings – think Ship Channel “upsets” and belches, even if DFW had just as many.  Dallas and Houston remain Texas’ only non-attainmenta areas for smog, although that could certainly change over time. Next up is EPA’s determination of the compliance timeline for all non-attainment areas. The good news is that DFW’s deadline should be sooner than Houston’s because it’s not as severely ranked. The worse the air, the more time a region has to clean it up. The bad news is that it could still mean officials don’t have to get serious about cleaner air until around 2015 for a 2017-18 deadline. That”s been the pattern up to now – keep waiting until the last minute to think about how to dig yourself out of a multi-decade deep hole. And believe us, with this process, 2 years is “the last minute.” There could be all kinds of useful planning and researching going on right now but they’ll be none of that.  Because insuring receipt of federal highway dollars, not protecting public health, has been the primary motivating factor behind the clean air machinery in North Texas. Until those priorities are reversed and clean air is sought for its own worth, we’re likely to always be behind the curve, chasing “unattainable” smog standards.