bioaccumulation in Lumbriculus variegatus Inna Nybom - PowerPoint PPT Presentation

NORDROCS 2012 September 18 – 21, Oslo Effects of carbon amendments on ecological responses and PCB bioaccumulation in Lumbriculus variegatus Inna Nybom inna.nybom@uef.fi University of Eastern Finland Department of Biology Joensuu campus

Contents  Background  Test setup  AC and Biochar  Site introduction  Results  Effects of AC  Effects pre-treatment on AC  Biochar  Conclusion 2 NORDROCS 2012 / Inna Nybom 25.9.2012

Activated Carbon (AC) 3 NORDROCS 2012 / Inna Nybom 25.9.2012

Activated Carbon (AC) 4 NORDROCS 2012 / Inna Nybom 25.9.2012

Activated Carbon (AC) Ghosh, U.; Luthy, R. G.; Cornelissen, G.; Werner, D.; Menzie, C. A. In-situ Sorbent Amendments: A New Direction in Contaminated Sediment Management. Environ. Sci. Technol. 2011, 45 (4), 1163- 1168. 5 NORDROCS 2012 / Inna Nybom 25.9.2012

Direct effects of Activated carbon? Nybom, I.; Werner, D.; Leppänen, M.T.; Siavalas, G.; Christanis, K.; Karapanagioti, H.; Kukkonen, J.V.K.; Akkanen, J. Responses of Lumbriculus variegatus to different activated carbon doses and particle sizes in two sediments. (submitted manuscript) . 6 NORDROCS 2012 / Inna Nybom 25.9.2012

Direct effects of Activated carbon? Nybom, I.; Werner, D.; Leppänen, M.T.; Siavalas, G.; Christanis, K.; Karapanagioti, H.; Kukkonen, J.V.K.; Akkanen, J. Responses of Lumbriculus variegatus to different activated carbon doses and particle sizes in two sediments. (submitted manuscript) . 7 NORDROCS 2012 / Inna Nybom 25.9.2012

Direct effects of Activated carbon? Nybom, I.; Werner, D.; Leppänen, M.T.; Siavalas, G.; Christanis, K.; Karapanagioti, H.; Kukkonen, J.V.K.; Akkanen, J. Responses of Lumbriculus variegatus to different activated carbon doses and particle sizes in two sediments. (submitted manuscript) . 8 NORDROCS 2012 / Inna Nybom 25.9.2012

Direct effects of Activated carbon?  Ecological responses of AC amendments are contradictory  Gammarus pulex and Asellus aquaticus  Neanthes arenaceodentata Kupryianchyk, D.; Reichman, E. P.; Rakowska, M. I.; Peeters, E. T. H. M.; Grotenhuis, J. T. C.; Koelmans, A. A. Ecotoxicological Effects of Activated Carbon Amendments on Macroinvertebrates in Nonpolluted and Polluted Sediments. Environ. Sci. Technol. 2011, 45 (19), 8567-8574. Janssen, E. M.-L..; Choi, Y.; Luthy, R. G. Assessment of Nontoxic, Secondary Effects of Sorbent Amendment to Sediments on the Deposit-Feeding Organism Neanthes arenaceodentata . Environ. Sci. Technol. 2012, 46 (7), 4134-4141. 9 NORDROCS 2012 / Inna Nybom 25.9.2012

Activated carbon and biochar  Activated Carbon  ø 63-200 µm (and 20-63 µm)  Coal based  Water treatment  SSA 900-1100 m 2 /g  Biochar  ø 20-63 µm  Spruce chips  SSA 210 m 2 /g 10 NORDROCS 2012 / Inna Nybom 25.9.2012

PCB contaminated sediments 11 NORDROCS 2012 / Inna Nybom 25.9.2012

PCB contaminated sediments TOC: 4.4% 0.9% 4.4% 12 NORDROCS 2012 / Inna Nybom 25.9.2012

Efficiency of AC to reduce PCB bioaccumulation 13 NORDROCS 2012 / Inna Nybom 25.9.2012

Adverse effects of AC amendments 14 NORDROCS 2012 / Inna Nybom 25.9.2012

Adverse effects of AC amendments reduced bioaccumulation but adverse effects 15 NORDROCS 2012 / Inna Nybom 25.9.2012

Activated carbon pre-treatment Washing away the adverse effects? Sediment S2, AC 20-63 µm 16 NORDROCS 2012 / Inna Nybom 25.9.2012

 Activated carbon pre-treatment Washing away the adverse effects? Sediment S2, AC 20-63 µm 17 NORDROCS 2012 / Inna Nybom 25.9.2012

Comparison of AC and biochar Sediment S2, AC/Biochar 20-63 µm 18 NORDROCS 2012 / Inna Nybom 25.9.2012

Comparison of AC and biochar low low Sediment S2, AC/Biochar 20-63 µm 19 NORDROCS 2012 / Inna Nybom 25.9.2012

Comparison of AC and biochar low high low high Sediment S2, AC/Biochar 20-63 µm 20 NORDROCS 2012 / Inna Nybom 25.9.2012

Conclusions  Activated carbon  Effective in reducing bioaccumulation  May cause biological responses  Biochar  Lower biological effects  Not efficient in reducing bioavailability  Sediment quality plays a role both in the biological effects and efficiency of carbon to reduce bioaccumulation  Site specific characterization is important 21 NORDROCS 2012 / Inna Nybom 25.9.2012

Thank you Acknowledgments:  Maj and Tor Nessling foundation  Maa- ja vesitekniikan tuki ry  EnSTe Sebastian Abel Suvi Kärmeniemi David Werner George Siavalas Hrissi Karapanagioti Kimon Christanis Kimmo Mäenpää Matti T. Leppänen Jussi V.K. Kukkonen Jarkko Akkanen 22 NORDROCS 2012 / Inna Nybom 25.9.2012