Farming activities contribute to soil antibiotic pollution, posing health risks for rural farm workers, especially on small farms in impoverished regions. The effectiveness of large farms in reducing poverty-induced soil antibiotic exposure risk (SABER) remains uncertain. Here we integrate global datasets on concentration of soil antibiotics, rural farm-worker employments and on-farm working hours to quantify SABER. We find that exposure-weighted relative populations are concentrated in underdeveloped regions, particularly East Africa and South and Southeast Asia. A 1,000 ha farm is optimal for SABER reduction, farm employment and working hours, outperforming both smaller and larger farms. Establishing large farms in the top 20% of priority areas can cover 47.3-75.5% of SABER hotspots, while establishing large farms in the top 44% of priority areas achieves the highest coverage of SABER hotspots without substantial declines in rural employment. This approach offers practical strategies to mitigate SABER while maintaining rural farm-worker employment.
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http://dx.doi.org/10.1038/s43016-025-01131-0 | DOI Listing |
J Hazard Mater
March 2025
College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou, Zhejiang 310058, China; State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou, Zhejiang 310058, China. Electronic address:
The tetracycline resistance gene tetA is a widely detected antibiotic resistance gene (ARG) posing significant ecological health risks in surface water. The development of rapid quantitative assays for tetA can substantially reduce both the time and economic costs associated with real-time monitoring of tetA transportation dynamics in the environment. In this study, a novel method for the quantification of tetracycline resistance gene tetA using real-time recombinase polymerase amplification was developed, which can complete the quantification of tetA within 20 minutes at a constant temperature of 39 ℃, achieving a detection limit of 50 copies/μL with 100 % sensitivity and specificity.
View Article and Find Full Text PDFJ Environ Manage
March 2025
School of Chemistry and Chemical Engineering, Guangxi University, 100 East University Road, Nanning, 530004, PR China. Electronic address:
The current state of the world's water resources is facing serious challenges, and the current water purification processes are designed for a single, more specific contaminant, with more stringent constraints, which are not suitable for emergency water treatment in stochastic environment and may cause secondary pollution. It is necessary to provide a water purification method that is convenient, easy-to-operate, one-step treatment of multiple pollutants. Herein, silk fibroin (SF) that extracted from discarded silkworm cocoons and recycled silk and phytic acid (PA) are "woven" into a network structure through hydrogen bonding and electrostatic interaction to form a unique gel, which could be used to remove different pollutants by "sweeping and catching" and physical adsorption.
View Article and Find Full Text PDFEnviron Geochem Health
March 2025
College of GeoExploration Science and Technology, Jilin University, Changchun, 130026, China.
Soda saline-alkali soils pose significant challenges to agricultural productivity due to high pH and excessive sodium content. This study investigated the removal of excess salts in soda saline-alkali soil through electrochemical treatment (ECT). Traditional ECT often led to uneven soil pH distribution, with acidic conditions near the anode and alkaline conditions near the cathode, which limited its effectiveness for soil improvement.
View Article and Find Full Text PDFCurr Microbiol
March 2025
Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Sciences, Liaoning Normal University, Dalian, 116081, China.
Naphthenic acids (NAs) are indigenous and complex components in petroleum. In the context of increasing global energy demand, the increasing extraction of fossil resources leads to increased environmental release of NAs, resulting in various environmental risks. However, the impact of NAs exposure on soil microorganisms remains still unclear.
View Article and Find Full Text PDFNanomaterials (Basel)
February 2025
Zhongyuan Critical Metal Laboratory, School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China.
The excessive utilization and emission of waste plastics have caused serious damage to the environment, and it is of great significance to explore high-value utilization methods for these waste plastics. To address this challenge, functional nano cobalt-loaded porous carbon materials (CoPC) with excellent antibiotic wastewater removal properties were prepared by one-step pyrolysis using waste PET plastics as a carbon source, a process described in this paper. Characterization revealed that the obtained CoPC-2 catalysts had a high degree of defects, a large specific surface area (343.
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