In this study, edible crops, lettuce (Lactuca sativa) and tomatoes (Lycopersicon esculentum), were tested for bisphenol A (BPA) and nonylphenol (NP) absorption from reused irrigation water. BPA and NP were added into simulated reclaimed water at ambient levels in a greenhouse under two irrigation exposure scenarios. In tomato fruit, BPA concentrations were 26.6 ± 5.8 (root exposure) and 18.3 ± 3.5 (foliar exposure) μg kg−1, whereas in lettuce leaves, they were 80.6 ± 23.1 (root exposure) and 128.9 ± 17.4 (foliar exposure). In tomato fruit, NP concentrations were 46.1 ± 6.6 (root exposure) and 24.6 ± 6.4 (foliar exposure) μg kg−1, whereas in lettuce leaves, they were 144.1 ± 9.2 (root exposure) and 195.0 ± 16.9 (foliar exposure). BPA moved reasonably in lettuce plants regardless of exposure method. BPA in tomatoes and NP in both crops had limited mobility. The estimated daily intake of BPA and NP from reclaimed water-irrigated vegetables varied from 8.9-62.9 to 11.9-95.1 μg, depending on exposure route.
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[…]