The University of Minnesota is closely monitoring the emerging public health concern involving the 2019 Novel Coronavirus (COVID-19). Please see this link for up-to-date information: Health Alert Coronavirus (COVID-19) NOTE: NRRI Duluth and Coleraine facilities are operating with limited access for staff, deliveries and contractors. 

Great Lakes Basin

Research Brief: Metals history of the Laurentian Great Lakes

NRRI water and minerals expertise came together to understand legacy metals pollution in the Great Lakes, published in two peer-reviewed articles. The researchers summarized what was previously known of metals paleogeochemistry - the metals history over the past two centuries - then performed a geochemical analysis of 11 sediment cores throughout the Great Lakes basin.

Contact us

  • (800) 234-0054

NRRI Duluth: Labs and Admin
(218) 788-2694
5013 Miller Trunk Hwy
Duluth, MN 55811
NRRI Coleraine: Minerals, Metallurgy and Biomass Conversion Labs
(218) 667-4201
PO Box 188
One Gayley Avenue
Coleraine, MN 55722

What have NRRI researchers been up to during the pandemic quarantine?

A lot.

Leading the U in developing safety protocols in response to COVID-19

Like… developing a lab hibernation and sunrise plan as well as safe field work protocols.

Investing in the future

Like… collaborating to develop high value biochar materials from biomass waste and applications to improve our environment.

Developing long-term datasets

Like… the EPA Coastal Wetlands Monitoring Project which protects our freshwater resources and the economy that depends upon them.

Supporting essential industry partners

Like… our High Pressure Grinding Rolls upgrade to make our iron industry partners more efficient and productive. 

Find out more.

See the full list here


Two men stand in front of a business sign outdoors
August 3, 2020

NRRI and industry partner receive patent on a first step invention that can lead to sulfate remediation in water systems. 

Man in blue lab coat in lab setting holds four clear packets containing wood chips
July 30, 2020

Biochar is gaining interest around the globe. NRRI is working to understand its potential for environmental remediation and as a new...

Woman wearing face mask at large mechanical assemblage in lab
July 30, 2020

Pandemic doesn’t slow down new NRRIer in new product development

Innovative Research. Minnesota Value. Global Relevance. Sign up for the NRRI Monthly Newsletter.