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Karin Eklöf

Karin Eklöf


My research aims to study mercury in soils, water, and biota, and how the transformation and mobilization of mercury is influenced by natural and man-made perturbations. As forestry activities may increase the already high concentrations of mercury in inland fishes, my main research interest is to understand how different forestry activities influence the formation of bioavailable methylmercury and the mobilization of methylmercury from soil to surface waters. By this research we hope to form adequate recommendations for measures to mitigate Hg export in connection with forest harvesting.


Ungoing projects

Mercury in runoff water: Identifying site specific factors and mitigation measures that influences mercury export and methyl-mercury formation at forest harvest. The project is financed by Formas (The Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning). Read more about the project here. 

Connectivity between mercury methylation hot-spots and surface waters as a consequence of biofuel harvesting. The project is financed by the Swedish Energy Agency. Read more about the project here.

SMaReF (Sino-Swedish Mercury Management Research Framework) is a research framework that aims at creating research collaboration between Sweden and China about mercury in the environment. Read more about the framework here.

WAMBAF (Water management in Baltic Forests) is an EU founded (European Regional Development Fund) project that aims to reduce nutrient and mercury export from forestry to streams, lakes and the Baltic Sea. The project is led by the Swedish Forestry Agency. Read more about the project here

Increasing DOC concentrations in surface waters and how this influence the share of acidified lakes – a study of extreme weather situations. Is the response of DOC concentrations in water to flow and season different during periods of extreme drought compared to the stable response of flow and season observed during the last three decades? The project is founded by the Swedish Environmental Protection Agency.

Selected publications

Eklöf, K., Bishop, K., Bertilsson, S., Björn, E., Buck, M., Skyllberg, U., Osman, O.A., Kronberg, RM., Bravo, A.G. 2018. Formation of mercury methylation hotspots as a consequence of forestry operations. Science of The Total Environment 613: 1069-1078.

Lidskog, R., Bishop, K., Eklöf, K., Ring, E., Åkerblom, S., and Sandström, C. 2018. From wicked problem to governable entity? The effects of forestry on mercury in aquatic ecosystems. Forest Policy and Economics 90:90-96.

Ecke, F., Levanoni, O., Audet, J., Carlson, P., Eklöf, K., Hartman, G., McKie, B., Ledesma, J.L., Segersten, J., Trychy, A., Futter, M. 2017. Meta-analysis of the environmental effects of beavers in relation to artificial dams. Environmental Research Letters

Eklöf, K., Lidskog, R. & Bishop, K. 2016. Managing Swedish forestry’s impact on mercury in fish: Defining the impact and mitigation measures. Ambio 45(Suppl 2): 163. doi:10.1007/s13280-015-0752-7.

Eklöf, K., A. Kraus, M. Futter, J. Schelker, M. Meili, E. W. Boyer and K. Bishop. 2015. Parsimonious Model for Simulating Total Mercury and Methylmercury in Boreal Streams Based on Riparian Flow Paths and Seasonality. Environmental Science & Technology 49(13): 7851-7859.

Eklöf, K., Schelker, J., M. Meili, H. Laudon, C. von Bromssen, and K. Bishop. 2014. Impact of forestry on total and methyl-mercury in surface water: distinguishing effects of logging and site preparation Environmental Science and Technology, DOI: 10.1021/es404879p

Eklöf, K., Fölster, J., Sonesten, L. and Bishop, K. 2012. Spatial and temporal variation of THg concentrations in run-off water from 19 boreal catchments, 2000-2010. Environmental Pollution 164, 102-109.

Eklöf, K., Kraus, A., Weyhenmeyer, G.A., Meili, M. and Bishop, K. 2012. Forestry influence by stump harvest and site preparation on methylmercury, total mercury and other stream water chemistry parameters across a boreal landscape. Ecosystems. 15 (8), 1308-1320.


You can find me on Researchgate

Researcher at the Department of Aquatic Sciences and Assessment; Section for Geochemistry and Hydrology
Telephone: 018-673042
Postal address:
Institutionen för vatten och miljö
Box 7050
750 07 UPPSALA
Visiting address: Lennart Hjelms väg 9, Uppsala