Microplastic analysis in drinking water based on fractionated filtration sampling and Raman microspectroscopy
- PMID: 33511538
- DOI: 10.1007/s11356-021-12467-y
Microplastic analysis in drinking water based on fractionated filtration sampling and Raman microspectroscopy
Abstract
Microplastics (MP) as emerging persistent pollutants were found in raw and drinking water worldwide. Since different methods were used, there is an urgent need for harmonized protocols for sampling, sample preparation, and analysis. In this study, a holistic and validated analytical workflow for MP analysis in aqueous matrices down to 5 μm is presented. For sampling of several cubic meters of water, an easily portable filter cascade unit with different pore sizes (100-20-5 μm) was developed and successfully applied for the sampling of three processed drinking waters, two tap waters and one groundwater. The size distribution and polymer types of MP were determined using a two-step semi-automated Raman microspectroscopy analysis. For quality control, comprehensive process blanks were considered at all times and a recovery test yielded an overall recovery of 81%. The average concentration of identified MP was 66 ± 76 MP/m3 ranging from 1 MP/m3 to 197 MP/m3. All found concentrations were below the limit of quantitation (LOQ) of 1880 MP/m3. The majority consisted of PE (86% ± 111%) while comparatively low numbers of PET (10% ± 25%), PP (3% ± 6%), and PA (1% ± 4%) were found. 79% of all particles were smaller than 20 μm. In summary, this study presents the application of a workflow for sampling and analysis of MP down to 5 μm with first results of no significant contamination in drinking water and groundwater.
Keywords: Drinking water; Filter cascade; Fractionated filtration; Microplastic analysis; Microplastics; Process blank; Raman microspectroscopy; Sampling.
© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
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References
-
- (2007) DIN EN 13443–1 2007–12, Anlagen zur Behandlung von Trinkwasser innerhalb von Gebäuden - Mechanisch wirkende Filter - Teil_1: Filterfeinheit 80 μm bis 150 μm - Anforderungen an Ausführung, Sicherheit und Prüfung. DIN e.V., Berlin (in German)
-
- (2008) DIN 32645:2008–11, Chemische Analytik - Nachweis-, Erfassungs- und Bestimmungsgrenze unter Wiederholbedingungen - Begriffe, Verfahren, Auswertung. DIN e.V., Berlin (in German)
-
- Anger PM, von der Esch E, Baumann T, Elsner M, Niessner R, Ivleva NP (2018) Raman microspectroscopy as a tool for microplastic particle analysis. TrAC Trends Anal Chem 109:214–226. https://doi.org/10.1016/j.trac.2018.10.010 - DOI
-
- Araujo CF, Nolasco MM, Ribeiro AMP, Ribeiro-Claro PJA (2018) Identification of microplastics using Raman spectroscopy: latest developments and future prospects. Water Res 142:426–440. https://doi.org/10.1016/j.watres.2018.05.060 - DOI
-
- Auta HS, Emenike CU, Fauziah SH (2017) Distribution and importance of microplastics in the marine environment: a review of the sources, fate, effects, and potential solutions. Environ Int 102:165–176. https://doi.org/10.1016/j.envint.2017.02.013 - DOI
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