A study released Tuesday by a team of scientists from Harvard University found that airborne radiation levels downwind of U.S. fracking sites are significantly elevated compared to background levels, providing further evidence that the drilling practice poses a threat to public health as well as the climate.

Published in the journal Nature Communications, the study detected the largest increases in airborne radiation levels near drilling locations in Pennsylvania and Ohio, states with high concentrations of fracking sites.

"Our results suggest that an increase in [particle radioactivity] due to the extensive [fracking development] may cause adverse health outcomes in nearby communities," warned the study, which found that locations within 12 miles downwind of 100 fracking sites have around 7% higher radiation levels compared to background levels.

The impact of fracking on airborne particle radioactivity "decreases gradually along with an increasing downwind distance" from oil and gas wells, the researchers noted.

Petros Koutrakis, the lead author of the study, told The Guardian that "if you asked me to go and live downwind [of fracking sites], I would not go. People should not go crazy, but I think it's a significant risk that needs to be addressed."

The new study comes as fracking continues to figure prominently in the 2020 presidential race, with President Donald Trump openly celebrating the destructive practice and Democratic nominee Joe Biden vowing not to completely ban it if elected—a stance that has drawn the ire of environmental activists and progressive lawmakers.

"Fracking is bad, actually," Rep. Alexandria Ocasio-Cortez (D-N.Y.) tweeted after Sen. Kamala Harris (D-Calif.), Biden's running mate, said during last week's vice presidential debate that a Biden administration "will not ban fracking."