Petition to regulate Iowa’s animal feeding operations denied


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Large livestock feeding operations often result in poorer water quality in nearby waterways. (Waterkeeper Alliance, Inc./flickr)
Jenna Ladd| September 20, 2017

A petition to make it more difficult to build animal feeding operations in the state of Iowa was shot down this week by the Iowa Environmental Protection Commission.

At present, applicants seeking to construct livestock facilities must meet only 50 percent of the state’s master matrix of rules and regulations pertaining to the structures. The petition, filed by two environmental groups, Iowa Citizens for Community Improvement and Food & Water Watch, requested that applicants meet at least 86 percent of the matrix’s requirements.

The groups argued that more strict regulation would protect residents living nearby livestock facilities from water pollution and odor. Iowa Department of Natural Resources sided with the Iowa Environmental Protection Commission and recommended against passing the petition. Noah Poppelreiter, an attorney with Iowa DNR, said that the request “goes too far” and would likely be overturned in the court system to the Des Moines Register.

The current animal feeding operation master matrix was developed fifteen years ago by state lawmakers.

Tarah Heinzen, an attorney for Iowa Food & Water Watch, said to the Register, “This vote against strengthening the master matrix is a vote for increasing Big Ag’s profits at the expense of Iowans’ health and environment.” 1,500 Iowans wrote in expressing their support for the petition.

Proponents of the petition pointed out that just two percent of applicants are denied permission to construct livestock feeding operations, which often result in poor water quality in nearby waterways. Last year, 810 water quality impairments in 610 bodies of water were reported in Iowa.

After turning down the petition, Iowa Environmental Protection Commissioner Joe Riding suggested its authors write letters to Gov. Kim Reynolds and legislative leaders asking them to change the matrix.

Potential for nanomaterials to solve environmental problems


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Nanotechnologies are being developed to harvest carbon dioxide and remove heavy metals, pictured above, from water sources. (ETH Zurich)
Jenna Ladd| September 15, 2017

In exciting new research, scientists from around the world are working to develop nanomaterials that can efficiently harvest carbon dioxide from the air and convert it into another useful product.

Nanomaterials are defined as those materials that are smaller than one millionth of a millimeter, or about 100,000 times smaller in width than a human hair.  Arun Chattopadhyay is a chemist at theIndian Institute of Technology Guwahati’s Center for Nanotechnology. “Nanomaterials can convert carbon dioxide into useful products like alcohol. The materials could be simple chemical catalysts or photochemical in nature that work in the presence of sunlight,” he said to Climate Central.

The trouble is, nanomaterials are not yet inexpensive enough for wide-scale application. To this point, Chattopadhyay added, “Nanomaterials could help us mitigate pollution. They are efficient catalysts and mostly recyclable. Now, they have to become economical for commercialization and better to replace present-day technologies completely.”

Researchers in France have developed a nanomaterial that uses sunlight and water to transform atmospheric CO2 into methanol. Although this type of nanomaterial may present a cheaper option, scientists are still struggling to create the particles at a consistent size.

Other types of nanomaterials are being developed to remove heavy metals and dyes from wastewater, clean up oil spills and breaking down organic waste more quickly.

Safe drinking water symposium next week in Des Moines


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Jenna Ladd| September 14, 2017

Water quality has been a growing concern for many Iowans in recent years, primarily due to nitrate runoff from agricultural fields frequently exceeding the EPA’s safe drinking water limits. A safe drinking water symposium will be held next Thursday and Friday, September 21 and 22 in Des Moines to unpack this issue and many others.

Challenges to Providing Safe Drinking Water in the Midwest” will feature Iowa-based and nationally-recognized speakers and discussion panels related to local, regional and national water quality issues. A few of the topics to be discussed are the Health Impacts of Nitrate in Drinking Water, Drinking Water Treatment Concerns, New and Emerging Drinking Water Threats, and Communicating with the Public on Drinking Water Issues.

The one-and-a-half-day event is co-sponsored by several centers at the University of Iowa, Drake University, the University of Northern Iowa as well as the Iowa Association of Water Agencies, and the Central Iowa Drinking Water Commission.

The event, which will be held at the Drake University Shivers Facility, is open to the public. Additional information regarding agenda, registration, hotel, and parking is available at https://cph.uiowa.edu/ehsrc/drinking-water-symposium-2017.html.  Alternatively, call (319) 335-4756 to speak with an organizer.

What: Challenges to Providing Safe Drinking Water in the Midwest: A Symposium

When: September 21 from 8 am to 5 pm, September 22 from 8 am to 12 pm

Where: Drake University, Shivers Facility, Des Moines

Fresh compost for Iowa Capitol lawn


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Compost will be spread on the west lawn of the state capitol this week. (flickr/Kevin Thomas Boyd)
Jenna Ladd| September 13, 2017

The Iowa State Capitol Terrace lawn is getting covered with layers of fresh compost this week in an effort to improve soil quality and reduce storm water runoff.

The Iowa Department of Natural Resources (DNR) is leading the project in partnership with the Iowa Department of Administrative Services, and the U.S. Environmental Protection Agency, with technical assistance from the Iowa Department of Agriculture and Land Stewardship urban conservation program. Work crews will blow dark colored compost on the lawn west of the Capitol building. While the mixture of organic material and manure will be visible at first, it will mix in with top soil within a few weeks, according to a statement by the DNR.

“Soil quality restoration is something that people can do in their own backyards as well to improve the water quality in their neighborhood creek or other local water body. It also makes their yard look great, too,” said Steve Konrady of the DNR’s Watershed Improvement Program. He added, “Some communities in Iowa offer assistance to homeowners for this practice, and this Capitol Terrace project is a great opportunity to demonstrate the practice to Iowans, and to work to improve state lands and waters, and cleaner water downstream.”

Des Moines residents that live and work in the area need not worry about any foul odor. “Truly processed compost should be odorless — almost like a potting substance,” Konrady said to The Register.

Iowa DNR fails to obey some state regulations


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A recent audit found Iowa DNR has failed to follow a state law related to the establishment of wetlands near close agricultural drainage wells. (Iowa DNR)
Jenna Ladd | September 8, 2017

A state audit released on Tuesday revealed that the Iowa Department of Natural Resources has failed to follow state law related to identifying and safeguarding wetlands, monitoring public works projects on the local level and establishing a clean air advisory panel.

In its defense, Iowa DNR claims that state law pertaining to these issues are often duplicative or less stringent than federal requirements, according to a report from the Des Moines Register. Federal requirements for wetland protection specifically exceed regulation put forth by the state, Iowa DNR director Chuck Gipp told the Register. He said, “We recognize and understand the value of wetlands.” The Iowa law “is asking us to do something that would be even less stringent than the federal code.”

In response, Iowa Environmental Council’s water program coordinator Susan Heathcote noted that federal oversight related to water quality is questionable at present, considering that President Trump is expected to repeal and revise an Obama era water quality regulation soon.

More specifically, the audit found that the Iowa DNR has not established a program aimed at assisting in the development of wetlands around closed agricultural drainage areas, which would aid in the filtration of nutrient rich water flowing into municipal taps. The news that the state is failing to abide by existing water quality-related regulations comes after another legislative session during which state legislators failed to provide funding for more robust water quality measures Iowa voters approved more than seven years ago.

Drinking water symposium scheduled for September


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Jenna Ladd| August 23, 2017

A symposium examining issues related to drinking water in Iowa and across the U.S. is set to take place in Des Moines next month. Challenges to Providing Safe Drinking Water in the Midwest: A Symposium will feature presenters from Iowa as well as nationally-renowned speakers.

The event’s agenda includes panel discussions concerning the human health impacts of nitrate in drinking water, new and emerging drinking water threats, and communicating about water quality with the public, among other topics. The symposium is co-sponsered by the The University of Iowa Environmental Health Sciences Research Center and the Center for Health Effects of Environmental Contamination along with Drake University.

What: Challenges to Providing Safe Drinking Water in the Midwest: A Symposium

When: September 21 from 8 am to 5 pm, September 22 from 8 am to 12 pm

Where: Drake University, Des Moines

Those interested in attending the symposium can register here.

On The Radio – Global sand shortage presents environmental problems


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What was once a sand mine sits abandoned in Rangkasbitun, Indonesia. (Purnadi Phan/flickr)
Jenna Ladd| August 21, 2017
This week’s On The Radio segment discusses how the international sand shortage is leading to the degradation of waterways.

Transcript: A global sand shortage is having detrimental impacts on waterways.

This is the Iowa Environmental Focus.

The demand for sand has skyrocketed in recent years due to rapid urbanization worldwide. Sand is used to make the concrete and asphalt for every new building, road, and residence. More than thirteen billion tons of sand were mined for construction last year, with 70 percent going to Asia.

At present, sand is being extracted too fast for natural systems to replenish. To keep pace with exploding demand, sand miners are dredging lakes and rivers, chipping away at coastlines and destroying entire small islands. Sand extraction in rivers often deepens the channel, making bank erosion more likely. Similarly, when miners remove sediments, they often also remove plant life, which can have adverse impacts on aquatic food chains.

More wealthy western countries are beginning to use sand alternatives. For example, asphalt and concrete can be recycled and crushed rock can be used instead of sand in some cases.

For more information, visit iowa-environmental-focus-dot-org. From the UI Center for Global and Regional Environmental Research, I’m Betsy Stone.