The world's first freshwater ballast testing facility is right here in the Duluth-Superior Harbor.  Dr. Euan Reavie, Research Associate with NRRI tells us what it means for alternative treatments.

The world's first freshwater ballast testing facility is right here in the Duluth-Superior Harbor. Dr. Euan Reavie, Research Associate with NRRI tells us what it means for alternative treatments.

Testing and Treatment of Freshwater Ballast

Minnesota Sea Grant and KUMD Radio (103.3 FM) are at it again. During this season, Sea Grant host Judy Zomerfelt delivers university research concerning aquatic systems and coastal communities to listeners — with a splash of fun.  The show aires at 7:45 AM every Wednesday morning.

Natural Sciences

Minnesota Sea Grant and KUMD Radio (103.3 FM) are at it again. During this season, Sea Grant host Judy Zomerfelt delivers university research concerning aquatic systems and coastal communities to listeners — with a splash of fun. The show aires at 7:45 AM every Wednesday morning.

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Testing and Treatment of Freshwater Ballast

Testing and Treatment of Freshwater Ballast