We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Interaction of plastic particles with heavy metals and the resulting toxicological impacts: a review
AI summary Read the abstract
Researchers reviewed how micro- and nanoplastics interact with heavy metals in the environment, identifying electrostatic attraction and pore-filling as the dominant adsorption mechanisms, and finding that factors including pH, salinity, biofilm formation, and particle size collectively determine whether combined exposure produces synergistic toxicity in animals or antagonistic effects in plants.
Interactions of plastic particles with different organic/inorganic pollutants including heavy metals impact their ecotoxicological potential, and proper understanding in this regard is important for their ecological risk assessment. However, many studies have reported the interactions between micro-/nanoplastics (MNPs) and heavy metals (HMs), but the most prevalent interactive forces and factors monitoring their interactions are still not clear. So, the present review represents the mechanisms of interactions with special emphasis on major interactive forces and biophysicochemical and environmental factors influencing trace element's adsorption onto the surface of MNPs. Electrostatic interaction and pore-filling mechanism can best explain the HMs adsorption to MNPs. A number of biophysicochemical factors (such as biofilm, size, crystallinity, and surface charge) and environmental factors (such as pH, salt, and temperature) act together for mediating interactions and ecotoxicities of MNPs and HMs in the real environment. From a toxicological point of view, the synergistic mode of action may be more active in animals, whereas the antagonistic activity may be prevalent in plants. Besides polymer density, biofilm formation and agglomeration property of MNPs can control the vertical distribution of MNPs along the water column. Finally, the ecotoxicological potential of MNPs in the natural environment can be considered as a function of spatiotemporal variation in abiotic (including MNPs and heavy metals) and biotic components. This review will be helpful in the detail understanding of ecotoxicological risk assessment of MNPs in relation to their interaction with heavy metals.
More Papers Like This
Interactions of microplastics with heavy metals in the aquatic environment: Mechanisms and mitigation
AI summary Read the abstract
This review synthesized mechanisms of heavy metal adsorption onto microplastics in aquatic environments and evaluated strategies for removing both contaminants simultaneously. The authors found that temperature, salinity, and plastic surface aging govern metal binding, and identified hybrid adsorbent materials as the most promising approach for co-removal of metals and microplastics from water.
Microplastics and potentially toxic elements: A review of interactions, fate and bioavailability in the environment
AI summary Read the abstract
This review summarizes how microplastics interact with toxic metals in the environment, finding that microplastics absorb and transport metals through soil and water via processes like electrostatic attraction and surface bonding. When organisms consume microplastics carrying toxic metals, they can experience greater harm than from either pollutant alone. This combined threat is relevant to human health because contaminated microplastics in the food chain could deliver concentrated doses of toxic metals to people through food and water.
Interaction of microplastics with metal(oid)s in aquatic environments: What is done so far?
AI summary Read the abstract
This review assembled the mechanisms by which microplastics sorb hazardous metals and metalloids in aquatic environments, examining how weathering, biofilm formation, and environmental conditions influence the transport and bioavailability of these contaminants.
Reevaluating microplastic‒heavy metal interactions: dominant role of natural inorganic particles over organic matter in adsorption competition
AI summary Read the abstract
Scientists studying how microplastics carry toxic heavy metals like chromium and cadmium found that a natural clay mineral in soil and water absorbed these metals much faster and in much larger amounts than the microplastics themselves, while a common natural organic material had little effect either way. This suggests that when judging how risky microplastic pollution really is, we should pay more attention to the natural minerals it interacts with in the environment, since they may play a bigger role than the plastic in spreading (or trapping) toxic metals that could eventually reach our food and water supplies.
Interactions between Nanoplastics and Heavy Metals in Freshwater Ecosystems: A Systematic Review of Adsorption Mechanisms, Combined Toxicity, and Ecological Risk
AI summary Read the abstract
Tiny plastic particles (nanoplastics) can act like magnets for toxic heavy metals in rivers and lakes, potentially carrying them into fish and other wildlife more easily than either pollutant would manage alone. This review pulls together existing research to show that whether this combo becomes more or less dangerous depends on factors like water chemistry and plastic type, but it means we may be underestimating pollution risks by studying plastics and metals separately. Since these contaminants can move up the food chain, this matters for anyone eating freshwater fish or relying on freshwater sources, though more real-world research is needed to know the actual risk
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.