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In This Issue
Finding The Best Seed
2011 Seed Variety Guide
Lessons Learned From 2010
Plenty Of Choices For 2011 Season
Cotton's Agenda: Getting A Clearer Vision
Cotton Board Hires Gillon As President
More Uses Found For Cotton Plant
Producers, Ginners Confront Air Quality Issues
What Mills Want: India’s Global Brand Expands
Editor's Note: Seed Varieties Have Come A Long Way
Web Poll: Frustration Expressed
Specialists Speaking
Long-Term Storage At The Gin Requires Serious Commitment
Cotton Consultants Corner: Arkansas – ‘Man, What A Year’
My Turn: Embarking On A New Career
ARCHIVES

Producers, Ginners Confront Air Quality Issues

Brent Murphree
Maricopa, Ariz.
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The very thing that makes the arid West a great place to grow cotton also makes it subject to air quality issues that are not always encountered in other parts of the Cotton Belt.

The cotton industry in California, Arizona and New Mexico faces in-creased regulations from county, state and federal officials trying to mitigate dust and airborne particles endemic to arid regions. This year, much of Pinal County, the largest cotton-producing county in Arizona by volume, was declared a non-attainment area for particulate matter 10 microns or less (PM10). This concerns the county’s producers and ginners.

Greg Sugaski, Arizona Operations Manager for Anderson Clayton and the current Arizona Cotton Ginners Association president, expressed his concern for the declaration.

“It makes it more difficult for us to do business,” he says.

Sugaski does not believe that gins are a big contributor to the PM10 problem, but the regulations may require that gins build dust houses at a cost of hundreds of thousands of dollars for each gin.

Tackling The Problem

While ginners and producers in Pinal County struggle with new mandates, Maricopa County, Ariz., has managed its non-attainment status by developing best management practices to show officials that they are working hard to mitigate the dust issue.

Art Heiden, a producer in Buckeye, Ariz., shuts down his tractors during high winds, waters down farm roads and has posted a 20-mile an hour speed limit on his unpaved farm roads.

Gins and farms in that county must make sure that mud and dirt are not tracked out onto the paved roads.  Producers like Steve Sossaman of Queen Creek, Ariz., have had issues with contract harvesters tracking out mud on to paved roads. “It must be cleaned up immediately,” he says. County enforcement officials have fined Sossaman even though the track-out source was not from his operation.

Familiar Issue For Farmers

Stan Creelman of Mid-Valley Cotton Growers uses a handbook of specifications for tracking emissions from each source point in his gins. The state requires a 20 percent or better opacity reading from the gins’ stacks during operation, half the level of the current standard in Pinal County, Ariz.

Ed Hughes of the USDA-ARS South-western Cotton Ginning Research Laboratory in Mesilla Park, N.M., is confident that gin emissions are a very small source of the air quality problem. The lab is participating in a sampling study measuring particulate matter smaller than 2.5 microns (PM2.5) as a percentage of PM10.

The study was generated when California implemented a PM2.5 standard, which stated that PM2.5 is as much as 50 percent of PM10.

“The preliminary numbers look good,” says Hughes, who believes that when the study is complete the percentage will be significantly less than the California standard.

On the farm, SJV producers are required to track nitrogen oxide, diesel and PM10 levels to fulfill regulations that focus on three general sources of air pollution – ozone, particulate matter and greenhouse gasses.

It is the task of the California Cotton Ginners and Growers Association to track legislation and regulations that impact California’s cotton industry.

Brent Murphree is the Cotton Board’s Regional Communication Manager for the West. He resides in Maricopa, Ariz.

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