Table 1 Overview of the environmental samples
Environmental sample | Origin | Presumed source of PET entry | Pyrolisable organic content (180–600 °C) |
|---|---|---|---|
Beach sediment | Warnemuende 54.194910 N 12.140777 E | Marine littering | < 1% |
Agriculture soil | Baden-Wuerttemberg 48.787672Â N 8.179543 E | Performed sewage sludge fertilization | 3.6% |
Compost | Lower Saxony | Littering from urban waste | 18–24% |
Fermentation residue | Berlin | Littering from urban waste | 34–39% |
Suspended particles of WWTP effluent | Kaiserslautern | No content suspected due to WWTP process | 59% |
Filter residue of greywater | Rhineland-Palatinate | Fibers of textile washing | 62% |
Sewage sludge | Berlin | Separation and enrichment due to WWTP process | 47% |
Dust samples | Berlin | Textile fibers in indoor air | 72–78% |