Journal of Environmental Management, Год журнала: 2025, Номер 375, С. 124359 - 124359

Опубликована: Фев. 1, 2025

The extensive use and application of recycled organics, including biosolids compost, has been considered as an effective waste management approach to reduce landfills. However, concerns have raised about the presence microplastics (MPs) in these organics their subsequent transfer soils. Although MPs widely documented, our knowledge occurrence characteristics processed organic such compost is still limited. present study aimed investigate abundance, potential sources (>25 μm) samples collected across eleven sites with different processing systems Australia. This includes digestate from anaerobic digestion rapidly dehydrated food waste. MPs, mainly polyethylene, polypropylene polyester, were found all concentrations ranging 1500 16,000 MP/kg dry weight. majority fell within smaller size range 25-500 μm. Using concentration (size range, morphology, density) detected mass abundance was estimated be between 7 760 mg/kg We also that 5.2 × 1010 6.2 1012 MP/year could transferred land via findings this showed compostable bags a source some samples. provides first evidence Australia emphasises need more comprehensively understand fate during composting processes, contribution soil MP contamination, impacts on biota.

Язык: Английский