Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The strong vertical transport capacity and facile plant uptake of perfluorooctanoic acid (PFOA) make its control in soil-plant rainfall leaching systems both urgent and challenging. This study investigated the effectiveness of biochar amendment (2 % and 4 %, w/w) in regulating the PFOA fate in a soil-lettuce system over 360 days, covering two seasons across two different soil types. Soil sequential chemical extraction and plant metabolomics analysis were employed to clarify the underlying immobilization mechanism and related metabolic outcomes. In both soils, biochar amendment greatly reduced PFOA leaching and plant uptake, while enhancing PFOA soil retention by immobilizing most PFOA (62.1 %∼94.9 %) in the top amended layers as a result of PFOA sequestration within the vast micropore and carbonized aromatic structure of biochar. The sequestration was accompanied by a rapid formation of non-easily desorbing PFOA fraction and continuous aging toward entrapped and ester-linked non-extractable residues over seasons. Metabolomics and biochemical analysis revealed that a 2 % amendment was sufficient to maintain the lettuce metabolism at the control level due to non-bioavailable PFOA sequestration, while more biochar additionally promoted its oxidation resistance under PFOA stress. These findings highlight the efficacy of biochar amendment as an effective strategy for mitigating environmental risks posed by PFOA within the soil-plant systems.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jhazmat.2025.139101 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Biochar amendment improves Morchella sextelata yield by enhancing soil NO-N availability and increasing the diversity while decreasing the absolute abundance of fungal community.
Microbiol Res
August 2025
Sichuan Institute of Edible Fungi, Sichuan Academy of Agricultural Sciences, Chengdu 610000, China; The National Key Laboratory of Ecological Security and Sustainable Development in Arid Region, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.
Black morel (Morchella sextelata) is widely regarded as a post-fire mushroom because of its prolific fruiting in post-fire forest soils enriched with charcoal. Intriguingly, artificial cultivation of M. sextelata often incorporates biochar as a soil amendment to enhance yield, although the underlying physicochemical and ecological mechanisms remain unclear.
View Article and Find Full Text PDFFe-modified biochar-driven ROS generation in the rhizosphere and their role in microplastic transformation.
J Hazard Mater
September 2025
State Key Laboratory of Regional and Urban Ecology, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Pollution Control for Port-Petrochemical Industry, CAS Haixi Industrial Technology Innovation
Reactive oxygen species (ROS) are critical mediators of soil biogeochemical processes. While the production of ROS with biochar (BC) in the rhizosphere has not been explored. We demonstrate that BC and Fe-modified biochar (FeBC), prepared at 400°C and 600°C, influence ROS generation in paddy soil containing biodegradable (polybutylene succinate: PBS) and conventional (polystyrene) microplastics (MPs).
View Article and Find Full Text PDFFirst observation of biochar aerosol generation from raindrop impact on biochar-amended soils.
J Hazard Mater
September 2025
Institute of Pollution Control and Environmental Health, and School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China. Electronic address:
This study presents the first experimental evidence of biochar (BC) aerosol generation via raindrop impact on amended soils, combining controlled rainfall simulations with year-long field monitoring of atmospheric particulates from a BC-treated plot (2.0 wt%). Microscopic and isotopic analyses confirmed BC incorporation in total suspended particles (TSP), accounting for 15.
View Article and Find Full Text PDFMitigating cadmium-induced oxidative stress in Satureja hortensis using selenium and biochar: Impacts on plant growth and essential oil yield.
J Trace Elem Med Biol
August 2025
Department of Agricultural Science and Engineering, SR.C., Islamic Azad University, Tehran, Iran.
Cadmium (Cd) contamination is an escalating threat to medicinal-crop production, yet practical mitigation strategies for Satureja hortensis L. remain unexplored. Here we tested the hypothesis that co-applying biochar and foliar selenium (Se) can synergistically alleviate Cd-induced oxidative damage and sustain essential oil (EO) yield.
View Article and Find Full Text PDFHeavy metals toxicity in plants: understanding mechanisms and developing coping strategies for remediation: a review.
Bioresour Bioprocess
September 2025
Department of Agrochemistry and Soil Science, Faculty of Agronomy, Agricultural University, Plovdiv, Bulgaria.
Heavy metal (HM) contamination is an increasing environmental and agricultural concern due to the persistence, toxicity, and bioaccumulative nature of metals such as cadmium (Cd), lead (Pb), mercury (Hg), and arsenic (As). These pollutants are primarily introduced through industrial effluents, mining, and agrochemicals, negatively impacting soil health, crop productivity, and food safety, ultimately posing serious risks to both ecosystems and human health. Conventional remediation methods can be costly, labor-intensive, and environmentally disruptive.
View Article and Find Full Text PDF