A scientist collects a groundwater sample with a syringe
Detailed Description
A scientist collects a groundwater sample to analyze for arsenic and other chemicals from a well installed in a wetland at the National Crude Oil Spill Fate and Natural Attenuation Research Site, near Bemidji, Minnesota. Researchers collected samples over a two-month period to quantify rates of arsenic release from aquifer sediments as organic carbon in the form of petroleum byproducts and ethanol biodegraded in the aquifer.
Sources/Usage
Public Domain.
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