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Nitrate Pollution / Mississippi River Basin
3:09 pm
Tue August 9, 2011

Nitrate pollution in Mississippi River Basin remains at 1980s levels, despite reduction efforts

Credit (Courtesy U.S. Geological Survey)
A map showing each of the sites involved in the U.S. Geological Survey's study on nitrate pollution in the Mississippi River Basin.
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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.

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Gateway Arch - Emerald Ash Borer
3:12 pm
Mon August 1, 2011

Public asked to comment on proposal to replace hundreds of trees near Gateway Arch

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Credit (David Cappaert, Michigan State University)
An adult emerald ash borer.
Credit (James W. Smith, USDA APHIS PPQ)
An ash tree showing damage from the larval stage of the emerald ash borer.
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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.

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Science Blogging
6:35 am
Mon August 1, 2011

St. Louis blogger helps inner city youth find "on-ramp" to science

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Credit (Alecia Hoyt Photography - www.aleciahoyt.com)
Danielle Lee has been blogging about science since 2006.
Credit (Danielle Lee)
Lee blogs about science you can see in your neighborhood park or backyard. Here, she holds a young goldfinch.
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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.

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