The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.
Occurence of microplastics in the hyporheic zone of rivers
Open accessAbstract
Although recent studies indicate that fluvial systems can be accumulation areas for microplastics (MPs), the common perception still treats rivers and streams primarily as pure transport vectors for MPs. In this study we investigate the occurrence of MPs in a yet unnoticed but essential compartment of fluvial ecosystems - the hyporheic zone (HZ). Larger MP particles (500–5,000 µm) were detected using attenuated total reflectance (ATR) - Fourier-transform infrared (FTIR) spectroscopy. Our analysis of MPs (500–5,000 µm) in five freeze cores extracted for the Roter Main River sediments (Germany) showed that MPs were detectable down to a depth of 0.6 m below the streambed in low abundances (≪1 particle per kg dry weight). Additionally, one core was analyzed as an example for smaller MPs (20–500 µm) with focal plane array (FPA)- based µFTIR spectroscopy. Highest MP abundances (~30,000 particles per kg dry weight) were measured for pore scale particles (20–50 µm). The detected high abundances indicate that the HZ can be a significant accumulation area for pore scale MPs (20–50 µm), a size fraction that yet is not considered in literature. As the HZ is known as an important habitat for invertebrates representing the base of riverine food webs, aquatic food webs can potentially be threatened by the presence of MPs in the HZ. Hyporheic exchange is discussed as a potential mechanism leading to a transfer of pore scale MPs from surface flow into streambed sediments and as a potential vector for small MPs to enter the local aquifer. MPs in the HZ therefore may be a potential risk for drinking water supplies, particularly during drinking water production via river bank filtration.
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Cited by
Kumar, R., Verma, A., Shome, A., Sinha, R., Sinha, S., Jha, P. K., Kumar, R., Kumar, P., Shubham, Das, S., et al. (2021) · Sustainability · doi:10.3390/su13179963 · Cited by 1,111
Finding Microplastics in Soils: A Review of Analytical Methods
Möller, J. N., Löder, M. G. J., & Laforsch, C. (2020) · Environmental Science & Technology · doi:10.1021/acs.est.9b04618 · Cited by 559
Self-citationNiu, L., Li, Y., Li, Y., Hu, Q., Wang, C., Hu, J., Zhang, W., Wang, L., Zhang, C., & Zhang, H. (2021) · Water Research · doi:10.1016/j.watres.2020.116449 · Cited by 304
Microplastic in Water and Sediments at the Confluence of the Elbe and Mulde Rivers in Germany
Laermanns, H., Reifferscheid, G., Kruse, J., Földi, C., Dierkes, G., Schaefer, D., Scherer, C., Bogner, C., & Stock, F. (2021) · Frontiers in Environmental Science · doi:10.3389/fenvs.2021.794895 · Cited by 63
Rauchschwalbe, M.-T., Höss, S., Haegerbaeumer, A., & Traunspurger, W. (2022) · Science of The Total Environment · doi:10.1016/j.scitotenv.2022.154207 · Cited by 20
Metadata
- Authors
- Frei, S., Piehl, S., Gilfedder, B. S., Löder, M. G. J., Krutzke, J., Wilhelm, L., & Laforsch, C.
- Venue
- Scientific Reports
- Published
- 2019-10-24
- Volume
- 9
- Issue
- 1
- Pages
- 15256-15256
- ISSN
- 2045-2322 (ISSN-L)
- OpenAlex
- W2982259318
- Cited by
- 226
- References
- 17
- FWCI
- 5.72
- Type
- journal article
- Language
- en
- Open access
- gold
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