Silver nanoparticles in sewage sludge: Bioavailability of sulfidized silver to the terrestrial isopod Porcellio scaber

Environmental Toxicology and Chemistry - Tập 37 Số 6 - Trang 1606-1613 - 2018
Sebastian Kampe1,2, Rälf Kaegi3, Karsten Schlich2, Claus Wasmuth2, Henner Hollert1, Christian Schlechtriem1,2
1Department of Ecosystem Analysis, Institute for Environmental Research, ABBt–Aachen Biology and Biotechnology, RWTH Aachen University, Aachen, Germany
2Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Schmallenberg, Germany
3Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland

Tóm tắt

AbstractSilver nanoparticles (AgNPs) are efficiently converted during the wastewater‐treatment process into sparingly soluble Ag sulfides (Ag2S). In several countries, sewage sludge is used as a fertilizer in agriculture. The bioavailability of sulfidized Ag to the terrestrial isopod Porcellio scaber was investigated. Sewage sludge containing transformed AgNPs was obtained from a laboratory‐scale sewage‐treatment plant operated according to Organisation for Economic Co‐operation and Development (OECD) guideline 303a. The results of transmission electron microscopy with energy dispersive X‐ray of sludge samples suggest that AgNPs were completely transformed to Ag2S. Adult isopods were exposed to OECD 207 soil substrate amended with the AgNP spiked sludge for 14 d (uptake phase) followed by an elimination phase in unspiked soil of equal duration. Most of the Ag measured in P. scaber at the end of the uptake phase was found in the hindgut (71%), indicating that only a minor part of the estimated Ag content was actually assimilated by the isopods with 16.3 and 12.7% found in the carcass and hepatopancreas, respectively. As a result of this, the Ag content of the animals dropped following transition to unspiked sludge within 2 d to one‐third of the previously measured Ag concentration and remained stable at this level until the end of the elimination period. The present study shows that Ag2S in sewage sludge is bioavailable to the terrestrial isopod P. scaber. Environ Toxicol Chem 2018;37:1606–1613. © 2018 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals, Inc. on behalf of SETAC.

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Tài liệu tham khảo

10.3762/bjnano.6.181

10.1039/c0em00547a

10.1021/es9015553

10.1002/etc.5620170416

10.1021/es1041892

10.1186/2190-4715-25-17

10.1016/j.rser.2006.05.014

10.1016/j.envpol.2015.12.063

10.1371/journal.pone.0057189

10.2166/wst.2010.274

Wiechmann B, 2012, Klärschlammentsorgung in der Bundesrepublik Deutschland

10.1021/es403646x

10.1021/es2037405

10.1016/j.watres.2012.11.060

10.1007/s12302-010-0153-2

10.1016/j.envpol.2013.01.029

10.1016/j.watres.2012.12.041

10.1002/etc.5620180112

10.1016/j.watres.2009.01.029

10.1021/es203732x

10.1002/etc.3904

10.1021/acs.est.5b01147

10.1016/j.envpol.2016.01.020

10.3109/17435390.2014.999139

10.1007/s001289900407

10.1016/j.ecoenv.2007.01.002

10.1016/j.ecoenv.2010.09.007

10.1016/j.ecoenv.2005.01.005

10.1002/etc.5620131109

10.1016/j.jhazmat.2011.12.049

10.1007/BF00310732

10.1016/j.tox.2009.08.004

10.1021/es3022182

10.1016/j.nimb.2011.02.068

10.1002/etc.3473

Organisation for Economic Co‐operation and Development.2007. Safety of manufactured nanomaterials—Testing programme of manufactured nanomaterials. Paris France. [cited 2018 February 23]. Available from:http://www.oecd.org/chemicalsafety/nanosafety/testing‐programme‐manufactured‐nanomaterials.htm

KleinCL ComeroS StahlmeckeB RomazanovJ KuhlbuschTAJ DorenEV TemmermanPJD MaatJ WickP KrugH LocoroG Hund‐RinkeK KördelW FriedrichsS MalerG WernerJ LingsingerT GwalikBM.2011. NM‐Series of representative manufactured nanomaterials: NM‐300 silver characterisation stability homogeneity. JRC Scientific and Technical Reports JRC60709. Publications Office of the European Union Luxembourg.

2001, OECD Guidelines for the Testing of Chemicals

1984, OECD Guidelines for the Testing of Chemicals

European Committee for Standardization.2012. Sludge treated biowaste and soil—Digestion of aqua regia soluble fractions of elements. EN 16174:2012‐11. Beuth Verlag Berlin Germany.

10.1016/j.chemosphere.2015.10.101

10.1021/es026053t

10.1039/C5EN00209E

US Environmental Protection Agency.2009. Targeted national sewage sludge survey statistical analysis report. Washington DC.

10.1021/es5003378

Haynes W., 2011, CRC Handbook of Chemistry and Physics

10.1021/acs.est.5b04550

10.1021/es2007758

10.1016/j.scitotenv.2004.12.018

10.1016/B978-0-08-025942-0.50007-4

Ruppert EE, 1994, Invertebrate Zoology

10.1006/eesa.2002.2173

10.1023/A:1005086123969

10.2307/2404294