Wyoming town under ozone warning -- again

As oil and natural gas production continues in Pinedale, Wyoming, so has the smog in the small town.

Tue, Jan 04 2011 at 5:00 PM

Related Topics:

Pollution, Natural Gas, Energy, Oil & Gas, Ozone

SMOGGED IN: The only thing more common that natural gas rigs in tiny Pinedale, Wyoming is the o-zone warning that comes every winter. (World Resources/flickr)

It is becoming a tradition in Wyoming: the annual ozone warnings for rural Sublette County.

2011 is no different that the last few years, as once again the Wyoming Department of Environmental Quality will be issuing elevated ozone warnings for the town of Pinedale and the surrounding areas.

The situation in Pinedale, which is the county seat for Sublette County, is quite interesting because ozone warnings are generally rare in the United States. More interesting is Pinedale’s population. The 2010 census has Pinedale’s population at just over 1,500, which even for Wyoming standards is pretty darn small.

So what’s causing all of this? Well a few factors are at play. The first is geography. Pinedale sits in a valley, so often there is an inversion making it hard for air pollution to escape. Then there is weather. When sun does get through, it hits the snow-covered town in the winter and bakes any pollutants. The baking causes ground level ozone, a key component of smog. The smog can’t escape because of the inversion caused by the valley.

But let’s back up to that population figure of 1,500. Smog is generally a part of big cities like Denver or Los Angeles, not Pinedale. But Pinedale has something else: thousands of oil and natural gas wells. The Casper Star Tribune reports, “Thousands of oil and gas wells have been drilled in Sublette County in recent years. Some area residents have long contended the lucrative Pinedale Anticline and Jonah gas fields are contributing to the region's elevated levels of ozone.”

Pinedale is a unique situation because of the mountains, weather and the energy production in the region. The state of Wyoming has been monitoring the Pinedale situation since 2005, and since 2009 energy companies are said to have been “volunteering” to take long-term actions to reduce the ozone-forming emissions in the area. But still, warnings remain as another calendar is hung on the wall.

So next time you see a smoggy picture of Los Angeles or Denver perhaps you can think to yourself, “Man, it looks like Wyoming out there.” Alright maybe that won’t happen. But if it does, you wouldn’t be totally off base.

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Comments: 3

Amanda Jan 06 2011 at 12:16 PM

Please check your sources and so-called "facts". I live in Pinedale, and I check the Ozone levels everyday before going out to work in the oil and gas fields. There was no warning issued and in fact, the ozone levels in 2010 and so far this year have not exceeded the limit. Moreover, the limit in PPM, has been reduced since the last time there actually was a warning issued. We all rely on the natural gas and the oil that these fields provide so instead of sitting there creating uninformed blogs

.... More

about elevated ozone levels, why don't you get off of the computer chair and and figure out a way to alleviate the problem?

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Craig Jan 06 2011 at 5:45 AM

Where are you getting your info? The DEQ just issued a statement that said Pinedale has not had an ozone alert since 2009! Your story is not true. Bad journalism and an attempt to cover up all the proactive efforts industry has made to eliminate the problem.