Fall 2021 Resources and Publications

Cyanobacterial blooms in oligotrophic lakes: Shifting the high-nutrient paradigm
Reinl, K. L., J.D. Brookes,C.C. Carey,T.D. Harris, B.W. Ibelings, A.M. Morales-Williams, L.N. De Senerpont Domis, K.S. Atkins, P.D.F. Isles,  J.P. Mesman, R.L. North, L.G. Rudstam, J.A.A. Stelzer, J. J. Venkiteswaran, K. Yokota and Q. Zhan
Freshwater Biology  2021

Cyanobacterial blooms are a globally significant challenge in marine and freshwater systems. A central theme to this body of work is that blooms are caused by anthropogenic eutrophication

Integrated assessment modeling reveals near-channel management as cost-effective to improve water quality in agricultural watersheds
Hansen, A.T., T. Campbell, S.J. Cho, J.A. Czuba, B.J. Dalzell, C.L. Dolph, P.L. Hawthorne, S. Rabotyagov, Z. Lang, K. Kumarasamy, P. Belmont, J.C. Finlay, E. Foufoula-Georgiou, K.B. Gran, C.L. Kling and P. Wilcock.
Proceedings of the National Academy of Sciences  2021

Despite decades of policy that strives to reduce nutrient and sediment export from agricultural fields, surface water quality in intensively managed agricultural landscapes remains highly degraded. Recent analyses show that current conservation efforts are not sufficient to reverse widespread water degradation in Midwestern agricultural systems.

Quantifying and predicting antimicrobials and antimicrobial resistance genes in waterbodies through a holistic approach: a study in Minnesota, United States
Bueno, I., A. Beaudoin, W.A. Arnold, T. Kim, L.E. Frankson, T.M. LaPara, K. Kanankege, K.H. Wammer and R.S. Singer
Scientific Reports   2021

The environment plays a key role in the spread and persistence of antimicrobial resistance (AMR). Antimicrobials and antimicrobial resistance genes (ARG) are released into the environment from sources such as wastewater treatment plants, and animal farms. This study describes an approach guided by spatial mapping to quantify and predict antimicrobials and ARG in Minnesota’s waterbodies in water and sediment at two spatial scales: macro, throughout the state, and micro, in specific waterbodies.

Months-long spike in aqueous arsenic following domestic well installation and disinfection: Short-and long-term drinking water quality implications 
M.L. Erickson, E.D. Swanner, B.A. Ziegler and J.R. Havig
Journal of Hazardous Materials  2021

Exposure to high concentration geogenic arsenic via groundwater is a worldwide health concern. Well installation introduces oxic drilling fluids and hypochlorite (a strong oxidant) for disinfection, thus inducing geochemical disequilibrium. Well installation causes changes in geochemistry lasting 12 + months, as illustrated in a recent study of 250 new domestic wells in Minnesota, north-central United States.