Conservation Reserve Program amended to support new farmers


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Buffer zones curb soil erosion and help to filter nutrients before they enter waterways. (USDA National Agroforestry Center/flickr)
Jenna Ladd | December 30, 2016

The U.S. Department of Agriculture has modified a national conservation program in order to support beginning farmers.

Since 1985, the Conservation Reserve Program has paid farmers a yearly rent for removing environmentally sensitive land from agricultural production. Most contracts last 10-15 years. Previously, if farmers broke the contract early, they were required to return all the rental payments with interest. With the policy change, farmers may now end their contracts early without penalty if they sell or lease the land to a beginning farmer.

Agriculture Deputy Under Secretary Lanon Baccam announced the policy change, which will take effect January 9th, at the Joe Dunn farm near Carlisle in central Iowa. Dunn’s son-in-law, Aaron White, is a beginning farmer on a small acreage near Carlisle.

White said, “I think the biggest obstacle beginning farmers face is land access. This program would help alleviate some of those problems.” Lanon Baccam agreed, he said giving the next generation of farmers a chance at success makes perfect sense.

Signed into law by President Ronald Reagan in 1985, the Conservation Reserve Program is the largest private-land conservation effort in the country. It is unclear how the program’s stated goal of improving water quality, reducing soil erosion and protecting habitat for endangered species will be effected by putting environmentally sensitive land back into production for beginning famers.

More information about the Conservation Reserve Program in Iowa can be found here.

Experts urge Iowans to test for radon gas in homes


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Radon mitigation systems use a ventilation pipe and a fan to push radon gas from the basement of the home into the open air. (Nebraska Department of Health and Human Services)
Jenna Ladd | December 29, 2016

As temperatures in Iowa plummet, residents are spending more time indoors, and some experts say there could be associated health risks.

Health officials and experts publicly encouraged Iowa residents to have their homes tested for radon this week. Anthony Salcedo, service manager at Thrasher Basement Systems in Omaha and Council Bluffs, said the odorless, colorless gas is found in many homes in the area.

Salcedo said, “We’re plagued with it, Iowa, Nebraska, we actually lead the country. It’s in about 70% of all homes.”

He noted that the presence of radon has nothing to do with the construction of the home. Salcedo explained,

“It’s not a foundation issue, it’s basically just what we’re building on. It could be a brand new home, it could be a 50-year-old home. We have a lot of clay soil and there’s no way to stop it on the front end. The soil breaks down, the uranium deposits, the radon gases will eventually make their way into your home and cause those health issues.”

Radon inhalation is the leading cause of lung cancer among nonsmokers, it leads to 400 deaths from lung cancer in Iowa each year. Paul Niles, a certified physician’s assistant at Akron Mercy Medical Clinic, has set out to educate his patients about radon.

Niles said, “Most people confuse radon with carbon monoxide.”

At-home radon testing kits can be purchased for about ten dollars from most hardware stores. According to the U.S. Environmental Protection Agency, if the test reads above 2 picoCuries per liter of air (pCi/L), homeowners should consider having a radon mitigation system installed. Niles explained that the Akron Mercy Medical Clinic has had a mitigation system installed. A pipe along with a fan pushes radon gas from underground into the open air outdoors.

He said, “Every county has high levels of radon. While you’re outside in the environment, it doesn’t really cause any health problems, but it’s when you’re in confined spaces that it can really do damage to the lungs.”

Buchanan County ISU Extension and Outreach has partnered with Buchanan County Environmental Health to provide a free public radon workshop. Residents can attend the workshop to learn more about radon, how to test for it at home and what to do after the test results come in.

Free Public Radon Workshop
When: 
Tuesday, January 24th, 7-8:30 pm
Where: Quasqueton City Hall, 113 Water St N – Quasqueton

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All of Iowa falls into the EPA’s zone 1, meaning that Iowa homes are very likely to have high levels of radon contamination. (Iowa Air Coalition)

Iowa produced record ethanol output in 2016


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Iowa corn being grown for ethanol.
Jake Slobe | December 27, 2016

Iowa’s 43 ethanol plants produced a record 4.1 billion gallons of ethanol in 2016, according to a state trade group.

The Iowa Renewable Fuels Association says the increase in gasoline demand is the reason for the slight increase in production over 2015’s 4 billion gallons.

“Setting another annual ethanol production record is a testament to the efficiency and hard work of Iowa’s ethanol plants,” said Iowa Renewable Fuels Association Executive Director Monte Shaw in a news release. “However, Iowa has the resources, both in corn and plant capabilities, to do much more.”

Shaw also mentioned the recently released Iowa Energy Plan, which outlines Iowa’s energy needs over the next decade. Among many other renewable energy priorities, the plan called for infrastructure upgrades to increase the availability of higher blends of ethanol and biodiesel.

The report said that ethanol production in Iowa produces $2.253 billion in gross domestic product and supports nearly 9,000 jobs.

In the coming year, the Iowa Renewable Fuels Association will push to secure funding for the Iowa Renewable Fuels Infrastructure Program to ensure more retailers have the equipment to offer higher blends of ethanol. Funding for that grant program expired in 2016.

 

CGRER researchers improve predictability of extreme winter haze events


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Fine particulate pollution creates a winter haze over Hong Kong during December of 2009. (Jason Thien/flickr)
Jenna Ladd | December 27, 2016

Meng Gao and Gregory R. Carmichael have published research in Science Advances, an open-access peer-reviewed multidisciplinary scientific journal, that further explains extreme winter haze events in China.

Carmichael is a Karl Kammermeyer Professor of Chemical and Biochemical Engineering and co-director of the University of Iowa Center for Global and Regional Environmental Research (CGRER). Gao is a former University of Iowa postdoctoral research scholar that is currently a postdoctoral fellow at the John A. Paulson School of Engineering and Applied Sciences of Harvard University.

While working with Carmichael at the University of Iowa, Gao researched how well extreme winter haze pollution events in China could be predicted using state-of-the-art scientific models.

Sulfates are formed by reactions in the atmosphere or on aerosol surfaces. Prior to their recently published research, predicting rapid and heavily concentrated sulfate particulate formation was difficult. The report explains that previous models relied on photochemical oxidants, but because there is limited photochemistry activity during heavy haze events, they are not able to predict those events with the highest sulfate concentrations very well. Carmichael and Gao were only able to predict the correct number of sulfate particulates if they created an additional reaction pathway to create sulfate on particles.

The researchers note that winter haze poses health risks for more than 400 million people in the North China Plain. Sulfate is a major element in fine haze particles. This research follows record sulfate concentrations which led to the extreme winter haze event of 2013 in Beijing.

Carmichael explained, “By incorporating this new reaction pathway into our air quality model, our ability to predict winter time haze events has improved dramatically. Furthermore this more detailed understanding of how fine particles are formed will help guide more effective control measures.”

Report provides inventory of water monitoring efforts in Iowa


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Constructing wetlands is a proven practice that helps to reduce nutrient runoff from agricultural land. (USDA/flickr)
Jenna Ladd | December 23, 2016

A 2016 report from the Iowa Department of Natural Resources in partnership with the Iowa Department of Agriculture and Land Stewardship summarizes Iowa’s water quality monitoring efforts.

The report, which was also supported by Iowa State University and the University of Iowa IIHR—Hydroscience and Engineering Center, provides a complete list of all nutrient-specific water monitoring sites in the state. The first of its kind, it was developed to inform the Iowa Nutrient Reduction Strategy. The Iowa Nutrient Reduction Strategy aims to monitor and reduce nutrients delivered to Iowa waterways and subsequently to the Gulf of Mexico by 45 percent.

Iowa Secretary of Agriculture Bill Northey said,

“Iowa has a comprehensive water quality monitoring effort in place that is supported by a variety of partners. Monitoring results were central to identifying the practices highlighted in the Iowa Nutrient Reduction Strategy and have provided valuable information as we have established priority watersheds. It continues to be an important part of our efforts as we work to increase the pace and scale of practice adoption needed to improve water quality.”

The report outlined all water monitoring efforts according their type and scale:

  • Edge-of-field monitoring
    • Researchers partner with farmers to monitor water quality on the edge of farm fields in order to accurately prioritize nutrient reduction practices.
  • Paired watershed monitoring
    • These are sites wherein the effectiveness of conservation practices are tested on two similar watersheds, one watershed receives intentional conservation measures and the other does not.
  • Large watershed monitoring (950,000 total acres)
    • These sites are either part of University of Iowa’s IIHR – Hydroscience and Engineering management of 45 real-time management stations or Iowa DNR’s 60 statewide sites.
  • Small watershed monitoring (22,500 total acres)
    • Several small watershed monitoring projects are ongoing including 18 established by the Iowa Water Quality Initiative. Many of these projects measure the effectiveness of conservation practices implemented by farmers.

The report also detailed the many challenges associated with nutrient-specific water quality monitoring. Complicating factors can include frequently changing land-use, varying streamflow and precipitation, and a lack of long-term monitoring records.

Iowa DNR director Chuck Gipp said, “While challenges exist, we believe continued nutrient monitoring is critical to understanding what Iowa can do to be successful.” He added, “All partners involved in developing this report know the value of long-term evaluation and are committed to continuing with a science-based approach to nutrient reduction in Iowa waters.”

Wind turbines may improve growing conditions, study finds


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An Iowa State University study of a 200-turbine wind farm between Radcliffe and Colo found that turbulence from the structures have a positive effect on growing conditions. (jonbgem/flickr)
Jenna Ladd | December 22, 2016

Recent research from Iowa State University found that wind turbines may improve growing conditions for Iowa crops.

Gene Takle, a climate scientist at the university, and his team measured several factors including temperature, humidity, precipitation, as well as wind speed and direction on a 200 wind turbine farm in central Iowa. The researchers collected data from 2010 through 2013 using research towers.

Overall, the study shows that wind turbines have a positive impact on several factors that affect growing conditions. Turbulence generated by the turbines prevents the formation of dew and dries the crops, which can keep fungi from growing, researchers say. Wind turbines also alter the temperature around them. The turbulence increases nighttime temperatures by a half-degree to a full degree and cools daytime temperatures by a half-degree. Data shows that the wind produced by the turbines rustle up plants situated above cropland as well, allowing the sun to shine through.

Takle said, “That’s beneficial. It allows light to move deeper into the canopy.”

Iowa sources nearly 36 percent of its total energy from wind turbines, more than any other state. In all, energy companies have invested $12 billion in wind production in the Hawkeye state, and landowners earn $20 million each year in lease payments for wind farms.

The study is a part of a $20 million, five year grant from the National Science Foundation. Moving forward, Takle said that he is interested in researching the effects wind turbines might have on regional weather patterns.

He said, “If you had warm, humid air rising and cooling over a wind farm, it could lead to more cloud formations, possibly even enhance or influence … rainfall patterns.”

Takle added, “We’ve been measuring changes on the wind farm, but this would measure effects outside the wind farm.”

Iowa’s watershed projects to receive second round of funding


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A flooded field during the flood of 2008 ( Joe Germuska / Flickr)
Jake Slobe| December 21, 2016

On Tuesday, State Secretary of Agriculture Bill Northey announced an additional round of funding to state funding for projects targeted at improving water quality in Iowa.

The eight watershed-based demonstration projects funded in 2013 that were set to end this year will now receive a second round of funding totaling $4.09 million over the next three years. In addition to the state funds, the eight projects will access about $6 million in matching funds to support water quality improvement efforts as well as other in-kind contributions.

The projects will build upon previous demonstration objectives and continue working towards implementing practices that will improve Iowa water quality.

The additional funding will allow the projects to focus on continuing to implement conservation practices that have been identified within the Iowa Nutrient Reduction Strategy. The new funding will also allow the projects to continue to build additional assessment, monitoring, and evaluation methods. $250,000 of the funds will be used for implementation of select priority nutrient reduction conservation practices including saturated buffers, and bioreactors, and wetlands.

The projects receiving funding extensions include:

The Benton/Tama Nutrient Reduction Demonstration Project
Boone River Watershed Nutrient Management Initiative
Central Turkey River Nutrient Reduction Demonstration Project
Demonstration of Targeted Nutrient Reduction Systems for Clayton County 
Miller Creek Water Quality Improvement Project 
Van Zante Creek Water Quality Improvement Project
West Branch of the Floyd River Water Quality Initiative
West Fork Crooked Creek Water Quality and Soil Health Initiative

The Iowa Water Quality Initiative was established in 2013 to help implement the Nutrient Reduction Strategy, which is a science and technology based approach to achieving a 45 percent reduction in nitrogen and phosphorus to Iowa waterways. The strategy brings together both point sources and non-point sources to address these issues.

Thousands of Iowans exposed to drinking water contaminated with lead


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Utilities stopped using lead pipes in water mains in the 1950’s, but copper service lines often contain lead that contaminate water if pipes are corroded. (Siddhartha Roy/FlintWaterStudy.org)

 

Jenna Ladd | December 20, 2016

More than 6,000 Iowans have been exposed to drinking water with levels of lead that exceed the 15 parts per billion the Environmental Protection Agency (EPA) considers safe.

Following the lead crisis in Flint, Michigan this year, EPA began to investigate how states are monitoring and testing for lead in drinking water. According to a report by USA today, an estimated 4 million people live in communities were testing was performed improperly or skipped all together.

Per federal regulation, utilities with more than 50,000 customers must continually take measures to protect against pipe corrosion, which can cause to lead contamination. In contrast, communities with less than 50,000 people can stop protecting against contamination as soon as levels drop below the federal limit. Data from Iowa Department of Natural Resources show that 13 rural water systems in the state exceeded federal limits in the last six months. An additional five utilities failed to test for lead at all over this period of time.

The EPA requires communities with less than 50,000 people to perform 20 lead tests per water system twice per year. If those tests come back normal, the utility is allowed to test much less frequently: 10 tests at 10 separate locations every three years. Some towns with less than 3,000 residents can qualify to test every nine years. Lead contamination in drinking water can cause lowered IQ, irreversible brain damage, behavioral problems and language acquisition delays, particularly for children. According to the Iowa Department of Public Health, there have been no reported instances of children with elevated lead levels in their blood in the most recent 20 years.

Richard Valentine, a civil and environmental engineer at the University of Iowa, said, “I don’t think the regulation is adequate.” Valentine continued, “It’s like saying, ‘It’s OK if only 10 percent of your airplanes crash; you’ve got good safety.’ If you’ve got one failure, you’ve got one hundred (more). You’ve got to find out why, where and sample a whole bunch more times and do something about it.”

The town of Kalona was on the reduced-testing plan prior to lead tests performed in the community this September. Two of the ten private homes tested in the town had drinking water with lead levels that were three times higher than the EPA’s 15 parts per billion limit. Kalona must now double the number of lead tests performed on drinking water. Lead levels also exceeded federal limits in Council Bluffs, Shueyville, Churdan, Blue Grass and Livermore.

The EPA announced late last month that it will be reconsidering its lead regulations. Mary Mindrup is head of the EPA’s Region 7 drinking water management branch, which serves Iowa, Nebraska, Kansas and Missouri.

Mindrup said, “The EPA has always been concerned about smaller systems just because the economics are different…than larger systems.” She continued, “But we want to ensure that regardless of the size of system, everybody is receiving water that is safe to drink.”

Mindrup said that the EPA will focus on improving lead management for small rural communities and increasing water infrastructure funding.

Mississippi River Collaborative calls on EPA for nutrient reduction enforcement


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A NOAA vizualization of where the nitrogen comes from that fuels the annual dead zone. (NOAA)
Jake Slobe | December 19, 2016

This week’s On The Radio segment discusses the Mississippi River Collaborative, a partnership of environmental organizations and legal centers from states bordering the Mississippi River.

Transcript: The Mississippi River Collaborative, a coalition of 13 legal and environmental groups, recently released a report urging the U.S. Environmental Protection Agency to take more specific steps to regulate excess nitrogen and phosphorus in waterways.

This is the Iowa Environmental Focus.

The document, titled “Decades of Delay: EPA Leadership Still Lacking in Protecting America’s Great River,” follows an earlier report by the Iowa Environmental Council which outlined the many health risks associated with elevated nitrates in water including birth defects, cancers, and thyroid problems.

In the latest report, Mississippi River Collaborative points out that none of the river’s ten bordering states have made meaningful reductions in nutrient pollution.

The report suggests actions that EPA can take to reduce nutrient pollution in the Mississippi River. Its recommendations include setting specific limits for nitrogen and phosphorus allowed in state waters, required water quality assessments, and the development of statewide nutrient reduction strategies that include specific goals and adequate funding.

For more information about this report, or to read it in its entirety, visit Iowaenvironmentfocus.org.

From the UI Center for Global and Regional Environmental Research, I’m Betsy Stone.

Roundup herbicide found in Cheerios, among other best-selling American food products


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Glyphosate, the active ingredient in Monsanto’s Roundup Ready herbicide, has been detected at high levels in Original Cheerios, Honeynut Cheerios and many other American food products. (Nicholas Erwin/flickr)
Jenna Ladd | December 16, 2016

The active ingredient in Monsanto’s Roundup Ready herbicide, glyphosate, has been detected at high levels in a variety of best-selling food products in the United States.

Researchers with U.S. Food Democracy Now! and The Detox Project used liquid chromatography tandem mass spectrometry (LC-MS/MS) to perform the first independent glyphosate residue testing of popular American food products. The results reveal alarmingly high levels of glyphosate in food products such as Cheerios, Wheaties, Special K, Doritos and Kashi products, among many others.

These results were published shortly after the U.S. Environmental Protection Agency postponed hearings which were to explore glyphosate’s link to cancer in humans. In 2015, the World Health Organization classified glyphosate as a class 2A “probable carcinogen.”

Dave Murphy, Executive Director of Food Democracy Now!, said, “Frankly, such a high level of glyphosate contamination found in Cheerios, Doritos, Oreos and Stacy’s Pita Chips are alarming and should be a wake-up call for any parent trying to feed their children safe, healthy and non-toxic food.”

Use of glyphosate-based herbicides has been growing steadily over the last 20 years. According to one study by Environmental Sciences Europe, the United States has applied 1.8 million tons of the chemical since its introduction to the market in 1974. Independent peer-reviewed research has shown that exposure of glyphosate at 0.05 parts per billion (ppb) can alter gene function in the liver and kidneys of rats over the course of two years. Glyphosate was detected at 1,125.3 ppb in Original Cheerios.

Murphy added, “It’s time for regulators at the EPA and the White House to stop playing politics with our food and start putting the wellbeing of the American public above the profits of chemical companies like Monsanto.”

The Environmental Protection Agency set the allowable daily glyphosate intake at 1.75 milligrams per kilogram of body weight in the 1970’s and 80’s, following the results of industry-funded studies. Researchers with U.S. Food Democracy Now! and The Detox Project call for the allowable daily intake to be reduced to 0.025 milligrams per kilogram of body weight, twelve times lower than the current allowable limit.

Dr. Michael Antoniou, a molecular geneticist from London, reacted to the study. He said,

“With increasing evidence from a growing number of independent peer-reviewed studies from around the world showing that the ingestion of glyphosate-based herbicides like Roundup can result in a wide range of chronic illnesses, it’s urgent that regulators at the EPA reconsider the allowed levels of glyphosate in American’s food and work to limit continued exposure to this pervasive chemical in as large a section of the human population as possible.”

These findings add to local concerns regarding high amounts glyphosate residue found in Iowa’s Sue Bee honey. The Sioux City-based company is now facing ligation from Beyond Pesticides and the Organic Consumers Association for allegedly inaccurately labeling their products as “all-natural” and “100% pure.”