David Cwiertny

@dcwiertny.bsky.social

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

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.

American Chemical Society@acs.org · 8mo ago

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. 

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]

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. 

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...

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’

theguardian.com

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...

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...

thenewlede.org

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...

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 …

stormlake.com

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.

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 · last yr.

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...