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61,005 resultsShowing papers similar to Anthropogenic-vegetation dual controls on the hotspots of microplastic pollution in urban green space soil
ClearEffects of soil properties and land use patterns on the distribution of microplastics: A case study in southwest China
Researchers surveyed microplastic contamination in soils across different land use types in Guizhou Province, southwest China. The study found that soil properties and land use patterns significantly influence microplastic abundance and distribution, with agricultural and urban soils generally showing higher contamination levels than less intensively managed areas.
Characterization of Microplastics and Associated Heavy Metals in Urban Soils Affected by Anthropogenic Littering: Distribution, Spatial Variation, and Influence of Soil Properties
Researchers sampled soils across residential, commercial, and industrial land-use types in urban areas and found microplastics in every location, with polypropylene, polyethylene, and polyamide as the dominant polymer types, at concentrations up to 850,000 particles per kilogram. Heavy metals were also associated with the plastic particles, meaning microplastics in urban soil may serve as combined carriers of chemical toxicants. The findings highlight urban soil as a major but underappreciated reservoir of microplastic pollution.
Microplastics in urban soils of Nanjing in eastern China: Occurrence, relationships, and sources
Researchers surveyed microplastics in urban green space soils across Nanjing, China, finding an average abundance of 461 particles per kilogram with fibers and fragments as the dominant forms. Source analysis linked microplastic patterns to nearby delivery and recycling activity points, suggesting that urban logistics infrastructure is an underrecognized microplastic source.
Microplastics in Urban Soils From Different Land Use Activities of Cyberjaya (Malaysia): Exploring Occurrence, Relationships, Sources and Pollution Level
Researchers surveyed urban soils across five different land uses in Cyberjaya, Malaysia, and found microplastics in all of them, with construction areas showing the highest concentrations. The types of plastic particles varied by location, suggesting that the sources and characteristics of soil microplastic contamination depend on what activities take place in that area.
Co-occurrence of light microplastics and phthalate esters in soils of China
Researchers investigated the co-occurrence of light microplastics and phthalate esters in Chinese soils, finding both pollutants present in all sampled agricultural and urban soils with significant correlations suggesting shared sources of plastic-derived contamination.
Impact of land-use patterns on soil microplastics: Distribution characteristics and driving factors in southern China’s Pearl River Delta
A study across different land-use types in China's Pearl River Delta found that agricultural land had higher soil microplastic concentrations than urban or forested areas, with land-use history and plastic mulch film use as the dominant factors controlling MP distribution and polymer composition.
Microplastic pollution in urban green-belt soil in Shihezi City, China
Researchers found microplastic concentrations ranging from 287 to 3,227 particles per kilogram in urban green-belt soils in Shihezi City, China, with fibers dominating and polystyrene and polyethylene as the primary polymer types, pointing to atmospheric deposition and road runoff as key sources.
Are microplastics correlated to phthalates in facility agriculture soil?
A study of agricultural soils from facility greenhouses and open fields in two Chinese vegetable-growing regions found MP concentrations of 380–3,786 pieces/kg and phthalate ester (PAE) levels of 0.30–1.58 mg/kg, with greenhouse soils significantly higher in MPs but not consistently in PAEs.
Vertical distribution and characteristics of soil microplastics under different land use patterns: A case study of Shouguang City, China
Researchers systematically investigated microplastic distribution across seven land use types and three soil depth layers in Shouguang City, China. The study found that greenhouse and polytunnel agricultural soils had the highest microplastic abundance, dominated by polyethylene and polypropylene film fragments, with concentrations decreasing with depth but still reaching 11-19% of total levels in the deepest layer at 40-60 centimeters.
Characterization of microplastics and the association of heavy metals with microplastics in suburban soil of central China
Microplastics in suburban soils of central China were characterized across three land-use types, with woodland containing the highest concentrations (4.1×10³ particles/kg) and 81.7% of particles under 100 μm, while XRF analysis confirmed heavy metals were enriched on plastic surfaces compared to surrounding soil. The study confirms that smaller microplastics are the dominant form and can act as carriers for heavy metal contamination in urban-adjacent soils.
Microplastic diversity, risks and soil impacts: A multi-metric assessment across land-use systems
Researchers surveyed microplastic abundance, polymer diversity, and ecological risk across seven land-use types in India's Brahmaputra Valley, finding that built-up areas had the highest particle counts while forest soils paradoxically showed the greatest polymer hazard scores due to high-risk polymers, and that land-use type shapes both the quantity and composition of soil microplastic contamination.
Microplastic and mesoplastic pollution in farmland soils in suburbs of Shanghai, China
Vegetable farmland soils from 20 sites in Shanghai suburbs were analyzed for micro- and mesoplastics, finding microplastic concentrations of 78 items/kg in shallow (0–3 cm) and 62.5 items/kg in deep (3–6 cm) soils, and identifying PE and PP as dominant polymers. The study documents microplastic contamination in peri-urban farmland soils surrounding one of China's most densely populated cities.
Temporal and spatial distribution of microplastics in green infrastructures: Rain gardens
Researchers measured temporal and spatial distribution of microplastics in green areas including parks and urban forests, finding particles across all sampled sites with concentration patterns influenced by proximity to roads, human activity, and atmospheric deposition. The results indicate that even urban green spaces are not free from microplastic contamination.
Urban Microplastic Pollution Revealed by a Large-Scale Wetland Soil Survey
Researchers conducted a large-scale survey of wetland soils across an urban area and found an average of 379 microplastic particles per kilogram, with abundance closely linked to proximity to the city's economic center. Polypropylene was the most common polymer type, and fiber and fragment shapes dominated the samples. The study found that atmospheric particle pollution and heavy metal concentrations in soil were strongly correlated with microplastic levels, suggesting shared urban pollution sources.
Effects of land use on the distribution of soil microplastics in the Lihe River watershed, China
Researchers surveyed microplastic contamination across five different land use types in a Chinese river watershed. They found that urban soils had the highest microplastic levels, followed by agricultural areas, with woodland having the lowest, and that population density strongly correlated with microplastic diversity. The study suggests that human activity intensity and plastic waste disposal are the main drivers of soil microplastic pollution at the watershed scale.
Significant influence of land use types and anthropogenic activities on the distribution of microplastics in soil: A case from a typical mining-agricultural city
Scientists surveyed microplastic pollution across five types of land in a Chinese mining-agricultural city and found the highest levels in greenhouse farmland, with nearly 3,738 particles per kilogram of soil. Agricultural plastic waste, irrigation water, and fertilizers were identified as the main sources of contamination. The study shows that farming practices are major contributors to microplastic buildup in the soil that produces our food.
Accumulation of soil microplastics and phthalate esters in nine typical Chinese croplands using plastic mulch film
Researchers conducted a harmonized analysis of microplastics and phthalate esters in agricultural soils from nine mulched crop regions across six Chinese provinces, finding microplastic abundances ranging from 2.4 million to higher concentrations in the 0–30 cm soil layer, with phthalate co-contamination.
Effects of agricultural land types on microplastic abundance: A nationwide meta-analysis in China
Meta-analysis of 321 observations across Chinese agricultural soils found that vegetable-growing soils had the highest microplastic contamination, followed by orchards, cropland, and grassland. Agricultural film mulch significantly increased soil microplastic levels, especially in orchards, while higher population density and economic activity correlated with increased contamination across all land types.
Microplastic Pollution in Residential Soils
Researchers collected surface soil from three residential density zones in Surabaya, Indonesia, and characterized microplastics by abundance, shape, color, and polymer type. Microplastics were present in all samples, with concentrations higher in denser residential areas, likely reflecting greater per-capita plastic use and outdoor plastic degradation.
Macro- and micro-plastic accumulation in soils under different intensive farming systems: A case study in Quzhou county, the North China Plain
Soil samples from six farming systems in the North China Plain showed macroplastic abundances from 0.2 to 46.8 kg/ha and microplastic concentrations up to 3.7×10⁴ items/kg, with greenhouse and mulched vegetable fields showing the highest contamination.
Occurrence and distribution of microplastics in coastal plain soils under three land-use types
Microplastic abundance and polymer composition were characterized in farmland, plantation, and orchard/secondary forest soils from 33 sites on the east China coastal plain. Farmland soils had significantly higher microplastic abundances than forest soils, with agricultural plastic mulching identified as the primary source of the dominant polyethylene film fragments.
Microplastic pollution in soil: a case-study from the Raffaele Viviani public park in Naples, Italy
This field study characterized microplastic contamination in soil samples from a public park in Naples, Italy, finding diverse polymer types at concentrations indicating that urban green spaces accumulate significant microplastic loads from atmospheric deposition and visitor activity.
Distinct microplastic distributions in soils of different land-use types: A case study of Chinese farmlands
Microplastic distribution across six types of farmland land use was surveyed from soils in five Chinese provinces to determine how agricultural practices shape soil microplastic contamination. The study found that microplastic abundance varied significantly by land-use type, with plastic mulch film use and irrigation practices as key contributing factors.
Abundance and characteristics of microplastics in soils with different agricultural practices: Importance of sources with internal origin and environmental fate
Microplastic abundance and characteristics were examined in soils representing four agricultural practice types in Chinese farmland to evaluate the influence of land use on plastic particle accumulation. Microplastic concentrations and polymer types varied by agricultural practice, with plastic mulch film use and irrigation water source as key drivers of farmland soil contamination.