Kristina Åhlgren

Articles in journals

• Åhlgren, K. & Bäckström, M. (2021). Environmental impact of alum shale mining and oil and uranium production in Kvarntorp, Sweden, based on historical archives and environmental monitoring data. Gorûcie slancy, 38 (4), 338-359.
• Åhlgren, K. , Sjöberg, V. , Allard, B. & Bäckström, M. (2021). Groundwater chemistry affected by trace elements (As, Mo, Ni, U and V) from a burning alum shale waste deposit, Kvarntorp, Sweden. Environmental Science and Pollution Research, 28 (23), 30219-30241.
• Åhlgren, K. , Sjöberg, V. , Grawunder, A. , Allard, B. & Bäckström, M. (2020). Chemistry of Acidic and Neutralized Alum Shale Pit Lakes 50 Years After Mine Closure, Kvarntorp, Sweden. Mine Water and the Environment, 39 (3), 481-497.
• Åhlgren, K. , Sjöberg, V. & Bäckström, M. (2020). Estimating Release of Trace Elements from an Area with Historical Open Pit Mining of Alum Shale Using Mass Transport and Element/Sulfate Ratios Calculations. Environments, 7 (11).

Conference papers

• Åhlgren, K. , Sjöberg, V. & Bäckström, M. (2018). Leaching of U, V, Ni and Mo from Alum Shale Waste as a Function of Redox and pH - Suggestion for a Leaching method. In: Wolkersdorfer, Ch., Sartz, L., Weber, A., Burgess, J. and Tremblay, G.,  Mine Water Risk to Opportunity. Paper presented at 11th ICARD, IMWA, WISA MWD 2018 Conference – Risk to Opportunity, Pretoria, South Africa, 10-14 September, 2018. (pp. 782-787). Pretoria, South Africa: Tshwane University of Technology.
• Åhlgren, K. , Sjöberg, V. , Sartz, L. & Bäckström, M. (2017). Understanding Groundwater composition at Kvarntorp, Sweden, from leaching tests and multivariate statistics. In: Wolkersdorfer, C.; Sartz, L.; Sillanpää, M.; Häkkinen, A.,  13th International Mine Water Association Congress – Mine Water & Circular Economy Proceedings, Volume 2. Paper presented at 13th International Mine Water Association Congress – "Mine Water & Circular Economy – A Green Congress" (IMWA 2017), Rauha, Lappeenranta, Finland, June 25-30, 2017. (pp. 770-776). International Mine Water Association.
• Åhlgren, K. , Sjöberg, V. , Sartz, L. & Bäckström, M. (2017). Understanding Groundwater Composition at Kvarntorp, Sweden, from Leaching Tests and Multivariate Statistics. In: Wolkersdorfer, C., Sartz, L., Sillanpää, M. and Häkkinen, A,  Mine Water & Circular Economy. Paper presented at IMWA 2017, Mine Water & Circular Economy, 13th International Mine Water Association Congress, Lappeenranta, Finland, 25-30 June, 2017. (pp. 770-776). Lappeenranta, Finland: Lappeenranta University of Technology.
• Åhlgren, K. & Bäckström, M. (2016). Identification of major point sources in the severely contaminated alum shale area in Kvarntorp, Sweden. In: Drebenstedt, C. & Paul, M.,  Mining Meets Water – Conflicts and Solutions IMWA 2016 in Leipzig, Germany, July 11–15, 2016. Paper presented at Annual Meeting of the International-Mine-Water-Association (IMWA 2016), Leipzig, Germany, July 11-15, 2016. (pp. 377-382). Freiberg: TU Bergakademie Freiberg, Institute of Mining and Special Civil Engineering.

Doctoral theses, comprehensive summaries

• Åhlgren, K. (2020). Environmental impact of alum shale mining in Kvarntorp, Närke, Sweden. (Doctoral dissertation). (Comprehensive summary) Örebro: Örebro University.

Manuscripts

• Åhlgren, K. & Bäckström, M. Environmental impact from alum shale mining, oil and uranium production in Kvarntorp, Sweden, based on historical archives and environmental monitoring data.
• Åhlgren, K. , Sjöberg, V. , Allard, B. & Bäckström, M. Groundwater chemistry affected by trace elements (As, Mo, Ni, U and V) from a burning alum shale waste deposit, Kvarntorp, Sweden.
• Åhlgren, K. , Sjöberg, V. & Bäckström, M. Release of trace elements from alum shale waste during manipulation of pH and redox : Suggestion for a new leaching method.