Characterization of the effluent from a nanosilver producing washing machine.
Artikel i vetenskaplig tidskrift, 2011
The increasing number of nanomaterial based consumer products raises concerns about their possible impact on the environment. This study provides an assessment of the effluent from a commercially available silver nanowashing machine. The washing machine released silver in its effluent at an average concentration of 11μgL(-1), as determined by inductive coupled mass spectrometry (ICP-MS). The presence of silver nanoparticles (AgNPs) was confirmed by single particle ICP-MS as well as ion selective electrode measurements and filtration techniques. Size measurements showed particles to be in the defined nanosize range, with an average size of 10nm measured with transmission electron microscopy (TEM) and 60-100nm determined with nanoparticle tracking analysis (NTA). The effluent was shown to have negative effects on a natural bacterial community as its abundance was clearly reduced when exposed to the nanowash water. If washing machines capable of producing AgNPs become a common feature of households in the future, wastewater will contain significant loadings of AgNPs which might be released into the environment.
Författare
Julia Farkas
Norsk institutt for vannforskning
Universitetet i Oslo
Hannes Peter
Uppsala universitet
Paul Christian
University of Manchester
Julian A. Gallego-Urrea
Göteborgs universitet
Martin Hassellöv
Göteborgs universitet
Jani Tuoriniemi
Göteborgs universitet
Stefan Gustafsson
Chalmers, Teknisk fysik, Mikroskopi och mikroanalys
SuMo Biomaterials
Eva Olsson
Chalmers, Teknisk fysik, Mikroskopi och mikroanalys
Ketil Hylland
Norsk institutt for vannforskning
Universitetet i Oslo
Kevin Victor Thomas
Norsk institutt for vannforskning
Environment International
01604120 (ISSN) 18736750 (eISSN)
Vol. 37 6 1057-62Ämneskategorier
Kemi
DOI
10.1016/j.envint.2011.03.006
PubMed
21470683