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Tiny pollutants, big consequences: investigating the influence of nano- and microplastics on soil properties and plant health with mitigation strategies
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Researchers reviewed the impact of nanoplastics and microplastics on soil properties and plant health, examining absorption and translocation mechanisms in plants. The study suggests that plastic particles alter soil structure and microbial communities, impair plant growth and nutrient uptake, and proposes mitigation strategies to address these emerging threats to agricultural ecosystems.
The impact of nanoplastics (NPs) and microplastics (MPs) on ecosystems and human health has recently emerged as a significant challenge within the United Nations Agenda 2030, drawing global attention. This paper provides a critical analysis of the influence of plastic particles on plants and soils, with the majority of data collected from recent studies, primarily over the past five years. The absorption and translocation mechanisms of NPs/MPs in plants are first described, followed by an explanation of their effects-especially particles like PE, PS, PVC, PLA, and PES, as well as those contaminated with heavy metals-on plant growth, physiology, germination, oxidative stress, and nutrient uptake. The study also links the characteristics of plastics (size, shape, concentration, type, degradability) to changes in the physical, chemical, and microbial properties of soils. Various mitigation strategies, including physical, chemical, and biological processes, are explored to understand how they address these changes. However, further research, including both laboratory and field investigations, is urgently needed to address knowledge gaps, particularly regarding the long-term effects of MPs, their underlying mechanisms, ecotoxicological impacts, and the complex interactions between MPs and soil properties. This research is crucial for advancing sustainability from various perspectives and should contribute significantly toward achieving sustainable development goals (SDGs).
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Tiny plastic particles are building up in farm soil, even more than in the ocean, and this review of existing research shows they can disrupt the delicate root zone where plants absorb nutrients and interact with helpful microbes. This disruption can stunt plant growth and potentially affect crop quality, meaning the food we eat could be another route by which plastic pollution reaches our bodies. More research is still needed to fully understand how these plastics harm plants, but the findings signal that fixing plastic waste management in farming is an urgent priority.
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This review focuses on how microplastics affect plants and soil health in agricultural settings, an area that has received less attention than marine microplastic pollution. The researchers describe how microplastics can alter soil structure, disrupt microbial communities, and enter plant tissues through unique transport mechanisms. The study highlights that agricultural soils are a major sink for microplastics, with potential consequences for food safety and crop productivity.
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