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Table 1 Overview of the environmental samples

From: Microplastic analysis using chemical extraction followed by LC-UV analysis: a straightforward approach to determine PET content in environmental samples

Environmental sampleOriginPresumed source of PET entryPyrolisable organic content (180–600 °C)
Beach sedimentWarnemuende
54.194910 N 12.140777 E
Marine littering< 1%
Agriculture soilBaden-Wuerttemberg
48.787672 N 8.179543 E
Performed sewage sludge fertilization3.6%
CompostLower SaxonyLittering from urban waste18–24%
Fermentation residueBerlinLittering from urban waste34–39%
Suspended particles of WWTP effluentKaiserslauternNo content suspected due to WWTP process59%
Filter residue of greywaterRhineland-PalatinateFibers of textile washing62%
Sewage sludgeBerlinSeparation and enrichment due to WWTP process47%
Dust samplesBerlinTextile fibers in indoor air72–78%