This study investigates the uptake pathways of nanoplastics by edible plants and addresses the urgent need for accurate quantification of nanoplastics accumulation. Polystyrene (PS) particles (200 nm) doped with europium chelate (PS-Eu) were used to quantify their uptake in wheat (Triticum aestivum) and lettuce (Lactuca sativa) grown hydroponically and in sandy soil. Inductively coupled plasma mass spectrometry revealed that PS-Eu particles predominantly accumulate in roots, with limited transport to shoots (<3% at 5,000 μg/L exposure). Time-gated luminescence via Eu chelate fluorescence visualized PS-Eu particles in roots and shoots, and scanning electron microscopy confirmed their presence. This lanthanide chelate doping approach offers a robust method to study nanoplastics-plant interactions.
The current study examines the contamination of microplastics in three greenhouse types: abandoned, normal, and simple. The findings revealed that the abundance of microplastics was found to be the highest in the abandoned greenhouse, followed by the normal greenhouse and simple greenhouse. The mean abundance of microplastic organic fertilizer and irrigation water was also high.[…]
The study examines the distribution of residual film after eight years of film mulching in mid-April 2018. Results from the study revealed that eight years of mulching significantly increased the quantity of agricultural mulch film residues in the soil. The size of residual film fragments was found to vary from 0.25 cm2 to 109 cm2,[…]
A study in Yuanmou County, Yunnan Province, investigated microplastic pollution in different land uses, including facility farmland, traditional farmland, orchard, grassland, and woodland. Results showed a significant difference in microplastic abundance and characteristics between different land use types. Facility farmlands, traditional farmlands, and orchard lands had higher microplastic abundance than grasslands and woodlands. The main[…]
The study analysed 225 soil samples from maize planting zones in northern China, revealing that long-term plastic film mulching increases microplastic pollution in agricultural soils. The abundance of microplastics was significantly higher in mulched soils (754 ± 477 items kg-1) than in non-mulched soils (376 ± 149 items kg-1). The length of time with film[…]
The study examined the relative abundances and morphological distributions of microplastics (MPs) in water, sediments, and farmland soils in the Caohai Lake region. The estuary in the study area was considered a potential sink for MP transportation. Transparent and black MPs accounted for a large proportion of MPs in the five environments, with possible sources[…]