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David Cwiertny

@dcwiertny.bsky.social
930 followers 384 following 135 posts

Director CHEEC, Professor of Environmental Engineering and Chemistry, University of Iowa.

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Reposted by David Cwiertny
Food Fix @foodfixco.bsky.social · 03/04/2026
The Trump administration has announced a new research program to help us better understand microplastics. Let’s break down what it means. foodfix.co/epa-calls-fo...
foodfix.co
EPA calls for more focus on microplastics in water
The Trump administration has announced a new research program to help us better understand microplastics. Let’s break down what it means.
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David Cwiertny @dcwiertny.bsky.social · 08/03/2026
Barely March, and the weather is just starting to warm….gonna be a rough Spring and early Summer for communities reliant on surface water. Apparently, it will take a large swath of Iowans losing access to safe drinking water before we treat this issue seriously.
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David Cwiertny @dcwiertny.bsky.social · 16/02/2026
We have around a dozen free-standing kiosks or vending machines selling water in Iowa, but these water sources are poorly regulated and rarely monitored. Please read and share our deep dive into kiosk water quality (open access!). Unfortunately, some kiosks can release lead into the purchased water.
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Reposted by David Cwiertny
American Chemical Society @acs.org · 11/02/2026
The researchers compared water dispensed from kiosks and tap water from nearby municipalities across six U.S. states, finding that the two water types can contain different contaminants. Learn more about the paper's results: buff.ly/yQ0Zu0f Image credit: Samantha Zuhlke [2/2]
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Reposted by David Cwiertny
American Chemical Society @acs.org · 11/02/2026
Freestanding water vending machines or water-dispensing kiosks are often marketed as providing cleaner water than tap water. A study published in ACS’ Environmental Science & Technology took a closer look at what’s in that water. 💧 [1/2]
A small tan building with a water dispenser and an ice dispenser on the outside wall. 
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Chris Jones @theswinerepublic.bsky.social · 14/01/2026
I have a PhD in Chemistry but I’m an air quotes scientist according to Iowa republicans www.newtondailynews.com/article/816,...
newtondailynews.com
Feenstra says Iowa needs to better promote ag and water quality efforts
Congressman was warned by state senator at Newton event that Democrats will make water quality a big issue for midterm election
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David Cwiertny @dcwiertny.bsky.social · 13/11/2025
Been off the socials, but this deserves a 👀: sentientmedia.org/chris-jones-...
sentientmedia.org
EXCLUSIVE: Clean Water Advocate Chris Jones Takes Step Toward Iowa Agriculture Secretary Run
“I think we need to rethink agriculture,” the professor-turned-advocate tells Sentient.
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 03/09/2025
open.substack.com/pub/riverrac...
open.substack.com
A Misstep in the Wrong Direction
News on August 25 reported Sheriff Mike Naig unholstering his squirt gun yet again to apply a gentle mist onto the raging inferno that is Iowa’s water quality and overall environmental condition.
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David Cwiertny @dcwiertny.bsky.social · 30/08/2025
Why aren’t more people talking about this? Seems notable that Polk County officials don’t care to promote or raise awareness about the report’s conclusions. Are any local reporters gonna ask Polk County folks what’s going on here? www.theguardian.com/us-news/2025...
theguardian.com
A report tied Iowa’s water pollution to agriculture. Then the money to promote it mysteriously disappeared
Roughly $400,000 in the $1m budget was for public awareness – but those funds were recently ‘zeroed out’
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David Cwiertny @dcwiertny.bsky.social · 29/08/2025
Congrats Polk County! You win the “We All Want Clean Water” award for 2025 for zeroing out the CISWRA budget after funding a report and holding a community event that energized Iowans to take action on our water quality. Way to sustain the momentum! www.thenewlede.org/2025/08/iowa...
thenewlede.org
As Iowans wrestle with polluted waters, politics get in the way
By Carey Gillam When a team of scientists embarked two years ago on a $1 million landmark study of Iowa’s persistent water quality problems, they knew that the findings would be important to share. B...
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 24/08/2025
cedarrapidsgazette-ia.newsmemory.com?publink=2f2e...
cedarrapidsgazette-ia.newsmemory.com
Demanding action
GUEST COLUMN | CHRIS JONESA progressive platform for Iowa food and agr
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David Cwiertny @dcwiertny.bsky.social · 15/08/2025
You can’t make this shit up. Representative of IFU says we can “suspect” things like the water, pesticides & fertilizer can cause cancer, but then turns around and says regulations won’t work and farmers simply need to be paid more to change their ways. www.timesrepublican.com/news/todays-...
timesrepublican.com
Iowa Farmers Union, Iowa Environmental Council and Harkin Institute host cancer listening session at Meskwaki Tribal Center
MESKWAKI SETTLEMENT — As event moderator Tommy Hexter asked the 20 or so people in attendance for Wednesday night’s listening session how many of them had been affected by cancer in one way or another...
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Chris Jones @theswinerepublic.bsky.social · 15/08/2025
From @artcullen.bsky.social “The probable D nominee, Rob Sand, is still trying to find religion on how to think about pollution. He does not want to be perceived as being anti-agriculture. What he fails to understand is that you do not have to pollute to farm.” www.stormlake.com/stories/edit...
stormlake.com
Editorials: People are waking up - Storm Lake Times Pilot
It isn’t often that over 1,000 Iowans will gather on a summer’s Monday evening to learn about nitrogen, phosphorous and water. Something is in the air. People filled Sheslow Auditorium at …
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 15/08/2025
Hear about the D day invasion of crop dusters and other fun stuff here from me with @zacharyos.bsky.social cornholechampions.substack.com/p/the-common...
cornholechampions.substack.com
📻 The common good and the establishment (w/ Chris Jones) - Cornhole Champions Interview
Toss some bags at agricultural policy... why ethanol might be our biggest mistake... and what a progressive water policy might look like.
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David Cwiertny @dcwiertny.bsky.social · 15/08/2025
Chris is spot on in this piece. Who wins with this decision? New dischargers. An enterprising reporter should track who receives new discharge (NPDES) permits into these segments now. Those are the interests that greased the skids to make this happen, Iowans’ water quality and health be damned.
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 15/08/2025
The call is coming from inside the house www.thegazette.com/environment-...
thegazette.com
'Clearly misguided': Experts condemn EPA's decision to rescind expansion of Iowa impaired water list
Less than a year after the U.S. Environmental Protection Agency added segments of five Iowa rivers to the impaired waters list for nitrate, the same agency — now operating under the Trump administrati...
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David Cwiertny @dcwiertny.bsky.social · 13/08/2025
“The new policy would aim to promote discussion of both viewpoints, rather than presenting one side or the other as a settled fact…” dailyiowan.com/2025/08/12/r...
dailyiowan.com
Regents approve new policy aimed at “indoctrination,” instead of anti-DEI, CRT policy
Iowa Board of Regent-controlled universities are now required to teach controversial topics “in a manner that fosters critical thinking and avoids indoctrination of one perspective” under a new board ...
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David Cwiertny @dcwiertny.bsky.social · 12/08/2025
The article is paywalled, but this is some complete and utter bullshit…
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Reposted by David Cwiertny
Jon Green @modestholdings.com · 07/08/2025
Were I to run for governor, I would make environmental quality a centerpiece of my campaign from the word "go," rather than trying to workshop something on the fly. And to be honest, I'd probably just plagiarize @theswinerepublic.bsky.social. open.substack.com/pub/riverrac...
open.substack.com
A Progressive Platform for Iowa Food and Agriculture
Secretary of Agriculture is one of seven executive offices Iowans see on their off-year voting ballot.
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 07/08/2025
@zacharyos.bsky.social @amierivers.bsky.social and @iowastartingline.com doing a nice job with this cancer series, with some help from @dcwiertny.bsky.social iowastartingline.com/cancer-in-io...
iowastartingline.com
How pesticides help fuel Iowa’s cancer crisis
Pesticides are part of why Iowa’s fields are so productive. Research into pesticide exposure also connects them to our cancer crisis.
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David Cwiertny @dcwiertny.bsky.social · 01/08/2025
I’m old enough to remember when American Public Media reported that saturated buffers are a sham and a waste of taxpayer dollars. Here, we celebrate this wasteful spending as if that report never happened…. iowacapitaldispatch.com/briefs/idals...
iowacapitaldispatch.com
IDALS breaks ground on water quality projects in Tama and Grundy counties • Iowa Capital Dispatch
IDALS is beginning construction  on 18 water quality and nitrate reduction projects in Tama and Grundy counties.
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David Cwiertny @dcwiertny.bsky.social · 31/07/2025
Critical infrastructure.
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 27/07/2025
Here’s ISU extension talking about more N application yet this year. Make the case this institution cares about water quality. Go ahead. agupdate.com/iowafarmerto...
agupdate.com
Is it too late for rescue N in 2025?
Editor’s note: The following was written by Richard Roth, Iowa State University assistant professor and Extension nitrogen science and soil fertility specialist, and Sotirios Archontoulis, professor o...
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Reposted by David Cwiertny
The Associated Press @apnews.com · 26/07/2025
Michigan has become a leader in safe drinking water after the Flint crisis, but mobile home parks remain a rough spot.
bit.ly
Michigan led on safe water after Flint, but mobile home parks are stubborn rough spot
Michigan has become a leader in safe drinking water after the Flint crisis, but mobile home parks remain a rough spot.
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Reposted by David Cwiertny
Sentient @sentientmedia.org · 25/07/2025
A hog slaughtering facility in Sioux City, Iowa promised to bring jobs to town, but blood and pollution came with Seaboard Triumph Foods as well. In footage provided to Sentient, animal waste can be seen flowing into a drain in the ground.
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Reposted by David Cwiertny
Sentient @sentientmedia.org · 25/07/2025
According to one source, the facility has caused a strain on the city’s wastewater treatment. Read the investigation by @ninaelkadi.com: buff.ly/7Xqj8zI
sentientmedia.org
At an Iowa Pork Plant, Piles of Dead Pigs and Wafting Sulphur Dioxide
When climate technology breaks down, the results can be deadly.
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Reposted by David Cwiertny
Don Carr @doncarr.bsky.social · 23/07/2025
2 million miles of point source pollution
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 23/07/2025
www.desmoinesregister.com/story/opinio...
desmoinesregister.com
Iowa State researchers obscure the truth on water quality | Opinion
Chris Jones, in a new letter, rebuts a guest essay's assertions about the causes of unsafe water in Iowa.
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David Cwiertny @dcwiertny.bsky.social · 23/07/2025
👀 www.desmoinesregister.com/story/opinio...
desmoinesregister.com
Iowa State researchers obscure the truth on water quality | Opinion
Chris Jones, in a new letter, rebuts a guest essay's assertions about the causes of unsafe water in Iowa.
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David Cwiertny @dcwiertny.bsky.social · 19/07/2025
And if Iowans are looking for a local angle, we have been waiting since 2010 for a new health assessment of nitrate that may tell us the SDWA standard of 10 mg/L as N isn’t sufficient to protect folks from cancer and adverse birth outcomes. The future of that assessment is seriously in doubt….
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David Cwiertny @dcwiertny.bsky.social · 19/07/2025
Difficult to put into words how devastating this is for environmental and public health protection. We will be less safe, more at risk, and our environment will be far more polluted and degraded because of this. www.nytimes.com/2025/07/18/c...
nytimes.com
E.P.A. Says It Will Eliminate Its Scientific Research Arm
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David Cwiertny @dcwiertny.bsky.social · 13/07/2025
Everyone is doing so great with these conservation practices that we’ve only had unsafe levels of nitrate in our major drinking water sources for over a month. Good job! Good effort! www.thegazette.com/guest-column...
thegazette.com
Opinion: Clean water starts upstream
How Watershed Work Protects Our Future
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Reposted by David Cwiertny
Jan Dutkiewicz @jandutkiewicz.bsky.social · 12/07/2025
Shameless plug, but Gabe and I delve into this issue in great depth in our forthcoming book about building a better food system that works for everyone. www.hachettebookgroup.com/titles/jan-d...
hachettebookgroup.com
Feed the People!
Why Wendell Berry, Michael Pollan, and other slow-food-loving locavores are wrong about food in America—and why Waffle House can save us all  The food ind...
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Reposted by David Cwiertny
Jan Dutkiewicz @jandutkiewicz.bsky.social · 12/07/2025
As @gnrosenberg.bsky.social and I wrote back in 2021, "we need an institution that will prioritize the public interest, including the interests of laborers and eaters, as well as public health and the environment. We need a Department of Food." newrepublic.com/article/1648...
newrepublic.com
Abolish the Department of Agriculture
The USDA has become an inefficient monster that often promotes products that are bad for consumers and the environment. Let’s replace it with a Department of Food.
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Jan Dutkiewicz @jandutkiewicz.bsky.social · 12/07/2025
I gotta say, @mikegrunwald.bsky.social and I disagree about a whole lot, but this is spot on. Dems should definitely abandon the old consensus on unquestioned support for farmers and instead "could start pushing sensible policies focused on eaters instead of growers." www.nytimes.com/2025/07/12/o...
nytimes.com
Opinion | Democrats Can Finally Stop Pandering to Farmers
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Michael Grunwald @mikegrunwald.bsky.social · 12/07/2025
The Big Beautiful Bill can be a wake-up call for Democrats on food and ag policy. I wrote in @nytimes.com that now is the moment for them to stop supporting ludicrous and destructive welfare programs for rich Republican farmers who hate them. Time for a new approach! www.nytimes.com/2025/07/12/o...
nytimes.com
Opinion | Democrats Can Finally Stop Pandering to Farmers
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David Cwiertny @dcwiertny.bsky.social · 12/07/2025
One of these things is not like the other ones….
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David Cwiertny @dcwiertny.bsky.social · 12/07/2025
“A better vision would focus more on outcomes than specific practices, encouraging the production of more abundant (and therefore more affordable) food with less environmental damage.” www.nytimes.com/2025/07/12/o...
nytimes.com
Opinion | Democrats Can Finally Stop Pandering to Farmers
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David Cwiertny @dcwiertny.bsky.social · 12/07/2025
“A city of 600,000 people risks losing access to water, so a small number of landowners and farmers in northwest and north central Iowa don’t have to be told what to do.” www.thegazette.com/staff-editor...
thegazette.com
Opinion: We need regulations to clean up water in Iowa
The North Raccoon River routinely has elevated levels of nitrate contamination.   Buy Photo Thanks in large part to nitrate …
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Reposted by David Cwiertny
Nicholas Grossman @nicholasgrossman.bsky.social · 12/07/2025
Natural disasters are one of those areas where we need the government. Some take it for granted, or call it waste, but no one else can marshal the resources. We need prepared agencies, competent leaders, and rapid response. Instead we have this. Avoidable pain for a lot of people. Including kids.
nytimes.com
FEMA Didn’t Answer Thousands of Calls From Flood Survivors, Documents Show
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David Cwiertny @dcwiertny.bsky.social · 11/07/2025
Who says our political parties can’t find agreement? 🤦‍♂️ kiwaradio.com/news/governo...
kiwaradio.com
Governors Reynolds, Vilsack Talk Alternatives To Regulation For Lowering Nitrate Levels In Iowa Waters - KIWA Radio
Des Moines, Iowa (RI) — Governor Kim Reynolds says the state and federal government should stick with the voluntary approach to reducing farm chemical runoff into Iowa waterways. A report […]
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Chris Jones @theswinerepublic.bsky.social · 25/06/2025
last 5 days (estimating today based on data at noon), the contents of 48 of these (34,311 gal anhydrous ammonia rail car) have traveled thru Cedar Rapids in the Cedar River. That's 6.94 million lbs of N, enuf to contaminate 316 billion gal of water to 10 mg/L, the EPA limit for municipal supply.
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Reposted by David Cwiertny
Chris Jones @theswinerepublic.bsky.social · 26/06/2025
Drinking water nitrate and ovarian cancer subscriber.politicopro.com/article/eene...
subscriber.politicopro.com
E&E News: Study links nitrate-contaminated water and ovarian cancer risk
“Ovarian cancer in particular ... doesn't have great survival,” said one researcher. “Anything we can do to better understand the environmental causes can help us with prevention.”
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David Cwiertny @dcwiertny.bsky.social · 26/06/2025
Perhaps my favorite quote: “This is not new information that we have a water quality issue in Iowa” (1) Then why don’t we do something about it? (2) ICON worried about getting folks on the water, thinking it will convince them to move to a city whose drinking water supply is at risk. Priorities!
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David Cwiertny @dcwiertny.bsky.social · 26/06/2025
Yes it does. And while this news article from today is paywalled, it’s another important headline: subscriber.politicopro.com/article/eene...
subscriber.politicopro.com
E&E News: Study links nitrate-contaminated water and ovarian cancer risk
“Ovarian cancer in particular ... doesn't have great survival,” said one researcher. “Anything we can do to better understand the environmental causes can help us with prevention.”
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Reposted by David Cwiertny
Danielle Pettit-Majewski, MPH @daniellefromia-mph.bsky.social · 26/06/2025
Our water quality directly Impacts our public health. The Iowa Legislature needs to take action to protect our water.
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David Cwiertny @dcwiertny.bsky.social · 26/06/2025
“The assessment’s final report — dubbed “Currents of Change” — was expected to be released earlier this year, but the county has thus far declined to make it public. The county has denied requests to release it under the state’s open records law on the basis that the report is still in draft form.”
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David Cwiertny @dcwiertny.bsky.social · 26/06/2025
A report by some of the state’s best scientists. The headline says it all: iowacapitaldispatch.com/2025/06/25/p...
iowacapitaldispatch.com
Polk County water report pins unhealthy rivers on ag pollution • Iowa Capital Dispatch
A long-awaited scientific report commissioned by Polk County says farm pollution threatens the ability to drink clean water and to safely interact with central Iowa streams, Iowa Capital Dispatch has ...
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Chris Jones @theswinerepublic.bsky.social · 23/06/2025
N load today Cedar Rapids: 1.39 million pounds, 399 nurse tanks. That’s the contents of 1087 tanks in three days. One river.
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Chris Jones @theswinerepublic.bsky.social · 22/06/2025
I’m getting some replies that ammonia is not nitrate. Nitrogen fertilizer applied as ammonia is converted to nitrate in the soil. Btw the load today will be about 1.27 million pounds or 366 of the thousand gallon ammonia nurse tanks. So 688 of those tanks in two days. In just one river.
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