skip to main content
skip to newscasts

Friday, May 23, 2025

Public News Service Logo
facebook instagram linkedin reddit youtube twitter
view newscast page
play newscast audioPlay

Trump administration says it's halting Harvard's ability to enroll international students; Post-George Floyd, MN communities drive Black wealth building; FL's fluoride ban sparks concerns over dental health; Despite barriers, TN adults want college degrees.

view newscast page
play newscast audioPlay

A deadlocked Supreme Court prevents nation's first publicly funded religious school, House Republicans celebrate passage of their domestic policy bill, and Trump administration sues states for taking climate action.

view newscast page
play newscast audioPlay

Despite lawmaker efforts, rural communities still short of crucial broadband, new Trump administration priorities force USDA grant recipients to reapply, and Appalachia's traditional broom-making craft gets an economic boost from an international nonprofit.

Study: Treated Oil, Gas Wastewater Leaves Radioactive Contamination

play audio
Play

Monday, February 5, 2018   

CHARLESTON, W.Va. — Over time, treated oil and gas wastewater is leaving radioactive deposits in the stream beds where it is released, scientists have found.

A team of Duke University researchers found highly elevated levels of radium in the mud where three Pennsylvania treatment plants released wastewater. That's even after the water was treated to greatly reduce its radioactivity, said Avner Vengosh, the professor of geochemistry who led the research team.

"We found that, indeed, there is a large enrichment of radioactive elements in those stream sediments,” Vengosh said. “It's about 600 times the level that we found upstream."

The industry says the brine and other water from oil and gas wells contains some naturally occurring radioactive elements, but only at very low levels. Vengosh and his team have been focusing on the ways these elements become concentrated in stream beds.

Vengosh noted the treated wastewater was from conventional oil and gas wells, not fracking wells - although he said the Duke researchers have found similar issues where fracking wastewater had been released. He added that Pennsylvania stopped the release of treated wastewater from fracking operations some years ago.

He said one troubling issue is how high these concentrations can get - as high as ten times the radioactivity of low level radioactive waste from, say, a hospital or power plant.

"So they are exceeding the level that this site should be, defined as a low radioactive disposal site,” Vengosh said. “Obviously, they are not - it's the middle of a stream in Pennsylvania."

He said most of the nation's oil and gas brine is injected into deep disposal wells, although the geology in Pennsylvania often makes that impossible. Vengosh said treating the wastewater isn't enough.

"I don't think there is a direct human health risk immediately from those sites,” he said. “But there is a chronic contamination of the environment. Even the treatment, it's not sufficient to address this problem."

Oil and gas wastewater is sometimes used to melt the ice on roads. Vengosh said that also may not be safe.


get more stories like this via email

more stories
Florida has become the second state to officially ban fluoride in public drinking water. (Pixabay)

Health and Wellness

play sound

Florida's new law banning fluoride in public water systems has drawn sharp criticism from dental professionals, who cite decades of evidence …


Environment

play sound

Tax revenue from marijuana sales in Montana will now support a wider variety of conservation projects, since Gov. Greg Gianforte has signed House …

Environment

play sound

Memorial Day weekend is the start of recreational boating season in Minnesota. State officials are encouraged by recent trends in keeping people safe …


Five years after George Floyd's murder, Minnesota government researchers say racial disparities are still a challenge, including a widening homeownership gap for Black residents. (Adobe Stock)

play sound

The racial reckoning spurred by George Floyd's murder got the public's attention about possible progress in ending wealth disparities. A Black-led …

Social Issues

play sound

A budget plan taking shape in Congress is getting attention for tax cuts and reductions for safety-net programs. Policy experts in South Dakota also …

In 2004, British Petroleum introduced the carbon calculator, reframing the climate crisis as a matter of personal responsibility, according to reporting from The Guardian. (Adobe Stock)

Environment

play sound

By Jessica Scott-Reid for Sentient.Broadcast version by Nadia Ramlagan for West Virginia News Service reporting for the Sentient-Public News Service C…

Social Issues

play sound

May is National Foster Care Month, and Kentucky advocacy groups across the political spectrum say the state hasn't done enough to keep kids out of …

Social Issues

play sound

By Enrique Saenz for Mirror Indy.Broadcast version by Terri Dee for Indiana News Service reporting for the Mirror Indy-Free Press Indiana-Public News …

 

Phone: 303.448.9105 Toll Free: 888.891.9416 Fax: 208.247.1830 Your trusted member- and audience-supported news source since 1996 Copyright © 2021