A novel method for assessing microplastic effect in suspension through mixing test and reference materials.

View/ Open
Average rating
votes
Date
2019Author
Gerdes, Zandra
Hermann, Markus
Ogonowski, Martin
Gorokhova, Elena
Metadata
Show full item recordAbstract
The occurrence of microplastic in the environment is of global concern. However, the microplastic
hazard assessment is hampered by a lack of adequate ecotoxicological methods because of conceptual
and practical problems with particle exposure. In the environment, suspended solids (e.g., clay and
cellulose) in the same size range as microplastic, are ubiquitous. Therefore, it must be established
whether the addition of microplastic to these background levels of particulate material represents
a hazard. We present a novel approach employing a serial dilution of microplastic and reference
particles, in mixtures, which allows disentangling the effect of the microplastic from that of the other
particulates. We demonstrate the applicability of the method using an immobilization test with Daphnia
magna exposed to polyethylene terephthalate (test microplastic; median particle diameter ~5 μm)
and kaolin clay (reference material; ~3 μm). In the range of the suspended solids test concent.....
Resource URL
https://www.nature.com/articles/s41598-019-47160-1Journal
Scientific ReportsVolume
9Issue
Article 10695Page Range
9pp.Document Language
enSustainable Development Goals (SDG)
14Maturity Level
TRL 4 Component/subsystem validation in laboratory environmentBest Practice Type
Manual (incl. handbook, guide, cookbook etc)DOI Original
https://doi.org/10.1038/s41598-019-47160-1Citation
Gerdes, Z.; Hermann, M.; Ogonowski, M. et al. (2019) A novel method for assessing microplastic effect in suspension through mixing test and reference materials. Scientific Reports, 9:10695, 9pp. DOI: https://doi.org/10.1038/s41598-019-47160-1Collections
The following license files are associated with this item: