A new study shows that despite decades of effort to reduce nitrate pollution in the Mississippi River Basin, concentrations remain as high today as they were in the 1980s.
The U.S. Geological Survey conducted the study, which looked at nitrate levels at eight sites on the Mississippi, Iowa, Illinois, Missouri, and Ohio rivers.
USGS hydrologist and study lead Lori Sprague said the next step will be to figure out where the pollution is coming from.
The National Park Service is bracing for the possible loss of more than 900 trees near the Gateway Arch. That’s what could happen if the emerald ash borer makes it to the St. Louis area.
The emerald ash borer has killed millions of ash trees since it was accidentally introduced to the U.S. in the early 1990s.
The text that follows is a condensed version of a longer interview, which you can listen to above.
Science blogger Danielle Lee is on a roll.
The Memphis native recently got her Ph.D. in animal behavior at the University of Missouri-St. Louis.
St. Louis Public Radio is a service of the University of Missouri-St. Louis.