Sediment Sleuth Tracks Radioactive Medicine Through Rivers

Christopher Sommerfield, associate professor of oceanography at the University of Delaware, has found a new way to study local waterways: radioactive iodine.  That's bad, right? Maybe not. Radioactive iodine is used in medical treatments and trace amounts are entering waterways via wastewater treatment systems. That means it provides a new way to track where and how substances travel through rivers to the ocean. read more

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