We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Research Progress on The Adsorption and Their Mechanisms of Polycyclic Aromatic Hydrocarbons in Soil by Microplastics
Summary
This review examines how microplastic characteristics including polymer type, particle size, density, and aging state influence their adsorption of polycyclic aromatic hydrocarbons (PAHs) in soil, along with how environmental factors such as pH and organic matter modify this interaction. The authors provide a theoretical framework for understanding the combined pollution risk of microplastics and PAHs in terrestrial ecosystems.
The physicochemical characteristics and refractory properties of microplastics can adsorb and enrich polycyclic aromatic hydrocarbons in the environment, and then release the adsorbed and accumulated pollutants into other organisms, which will cause harm to the soil ecosystem. In this paper, the effects of microplastics type, size, density, aging degree and soil environmental factors on the adsorption of polycyclic aromatic hydrocarbons by microplastics were reviewed. This paper will provide a theoretical basis for exploring and revealing the combined pollution of microplastics and polycyclic aromatic hydrocarbons in the soil environment.
Sign in to start a discussion.
More Papers Like This
Adsorption behaviour and mechanism of polycyclic aromatic hydrocarbons onto typical microplastics in a soil solution
Researchers investigated the adsorption behavior of polycyclic aromatic hydrocarbons benzo[a]anthracene and benzo[a]pyrene onto polyethylene and polystyrene microplastics across multiple particle sizes (0.8–500 µm) in soil solution using batch sorption experiments, finding that particle size and environmental factors significantly affect PAH sorption mechanisms.
Microplastics enhance soil residue of polycyclic aromatic hydrocarbons: Roles of pH and dissolved organic matter
Researchers used dynamic soil column leaching experiments with multiple controlled factors to investigate how microplastics affect the soil residue of polycyclic aromatic hydrocarbons (PAHs). MPs significantly enhanced PAH persistence in soil by altering sorption-desorption dynamics, with MP type, aging, and soil organic matter content as key modulating factors.
Vertical transport behavior of soil polycyclic aromatic hydrocarbons (PAHs) microplastic-mediated based on column leaching experiment
A soil column experiment showed that microplastics reduce how much polycyclic aromatic hydrocarbon (PAH) pollution leaches downward through soil by 8–20%, effectively trapping these carcinogenic compounds closer to the surface; however, alkaline conditions reversed this effect, causing elevated PAH leaching. This matters because microplastic-contaminated agricultural soils often also carry PAHs, and the interaction between the two pollutants could affect both groundwater contamination risk and the bioavailability of PAHs to crops.
Interactions between polyaromatic hydrocarbons and microplastics: Environmental mechanisms and ecotoxicological impacts
This review examines how microplastics interact with polycyclic aromatic hydrocarbons, a class of toxic organic pollutants found throughout the environment. Evidence indicates that microplastics can adsorb these pollutants and alter their availability and toxicity to living organisms, with effects depending on plastic type, pollutant properties, and environmental conditions. The study identifies critical gaps in long-term exposure research and calls for standardized testing methods to better assess these combined risks.
Sorption of polycyclic aromatic hydrocarbons by microplastic films: Characterizing kinetics, isotherms, and impacts of sludge exposure
This study characterized the sorption of polycyclic aromatic hydrocarbons onto microplastic films in sludge and wastewater systems, finding that MP type and surface properties strongly influence PAH binding capacity and may facilitate PAH transport and bioavailability in contaminated environments.