We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Fate, transport, and ecotoxicological impacts of nanoplastics in soil systems: Interactions with earthworms and soil microbial dynamics
AI summary Read the abstract
This review pulls together findings from 18 studies on how tiny plastic particles (nanoplastics) behave in soil, showing they can harm earthworms and disrupt the soil bacteria that keep dirt healthy and fertile. Since healthy soil is the foundation of our food supply, this matters because damaged soil ecosystems could affect crop quality over time — plus these nanoplastics can act like tiny magnets, dragging other harmful chemicals along with them into the environment and potentially our food chain. The researchers note that scientists still need better, more realistic studies to fully understand the risks before drawing firm conclusions.
Nanoplastics (NPs; <1000 nm) are increasingly recognized as pervasive contaminants in terrestrial ecosystems, yet their environmental behavior and biological impacts remain insufficiently resolved. This review synthesizes evidence from 18 high-quality experimental studies to evaluate the transport mechanisms of nanoplastics in soils, their interactions with soil fauna—particularly earthworms—and their effects on microbial communities. Nanoplastic mobility is governed by soil texture, surface charge interactions, aggregation dynamics, and environmental conditions such as moisture and ionic strength. Bioturbation by earthworms enhances vertical redistribution, while ingestion leads to physiological stress, oxidative damage, and altered nutrient cycling. Microbial responses include shifts in community composition, suppression of enzymatic activities, and changes in metabolic pathways, with implications for soil fertility. Notably, nanoplastics can act as vectors for co-contaminants, amplifying ecological risks. Despite growing evidence of adverse effects, inconsistencies persist due to methodological variability and unrealistic exposure scenarios. This review identifies critical knowledge gaps, including long-term field-scale impacts, standardized detection methods, and mechanistic understanding of nano-bio interactions. Addressing these gaps is essential for accurate risk assessment and sustainable soil management in the context of escalating plastic pollution.
More Papers Like This
Plastic pollution in terrestrial ecosystems: Current knowledge on impacts of micro and nano fragments on invertebrates
AI summary Read the abstract
This review summarizes research on how micro- and nanoplastics affect soil-dwelling invertebrates like earthworms and insects, finding that effects vary widely depending on plastic type, shape, concentration, and exposure time. While no broad conclusions could be drawn, the documented sublethal effects on soil organisms could disrupt the soil ecosystems that support the crops humans depend on for food.
Ecotype-Specific Drilosphere Microbiome Reprogramming Influencing Microplastic Impacts on Soil Carbon–Nitrogen Characteristics and Earthworm Health
AI summary Read the abstract
Tiny plastic particles from pollution build up in the soil around earthworm burrows and guts, disrupting the good bacteria that keep soil healthy and making it harder for soil to hold onto nitrogen — a key nutrient for growing food. This matters because earthworms are essential for healthy soil that our crops depend on, and this research shows microplastics can quietly damage that system by harming earthworms' immune systems and digestion in ways that ripple through the food chain.
Micro- and nanoplastics in soils: Tracing research progression from comprehensive analysis to ecotoxicological effects
AI summary Read the abstract
Researchers conducted a large-scale analysis of 2,451 scientific publications on micro- and nanoplastics in soil published between 2006 and 2023, mapping global research trends and identifying key gaps. The review found rapidly growing interest in soil microplastic pollution and highlighted the need for interdisciplinary approaches to understand how these particles harm earthworms, soil microbes, and ultimately human health.
Microplastics in agroecosystems: A review of effects on soil biota and key soil functions
AI summary Read the abstract
This review examines how microplastic and nanoplastic contamination in agricultural soils affects soil organisms and ecological functions. Researchers found that plastics enter farmland through multiple pathways including plastic mulch, sewage sludge, and irrigation water, and once present they alter soil properties and exhibit toxic behavior toward soil biota. The study identifies significant knowledge gaps about the long-term impacts of microplastic accumulation on agricultural productivity and food safety.
Exploring the Impact of Micro-plastics on Soil Health and Ecosystem Dynamics: A Comprehensive Review
AI summary Read the abstract
This review examines how microplastics affect soil health, finding that they alter soil structure, water retention, and the organisms that live in soil. Microplastics can carry toxic substances into soil and interact with other pollutants to amplify harmful effects on earthworms and soil microbes. Since healthy soil is essential for growing safe food, microplastic contamination of agricultural land could have long-term consequences for the food supply and human health.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.