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61,005 resultsShowing papers similar to Distribution of Microplastics in an Urban Soil:The Case of a Medium-Sized Cityin the Central Valley of Chile
ClearCharacterization 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.
Global concentrations of microplastic in soils, a review
This global review synthesized data from studies on microplastic concentrations in soils worldwide, finding contamination across diverse terrestrial environments with higher levels near urban areas and agricultural land. Terrestrial soils are estimated to contain far more microplastic than the world's oceans, making them a critical but understudied reservoir of plastic pollution.
The distribution of microplastics in soil aggregate fractions in southwestern China
Researchers investigated microplastic distribution across different soil types in agricultural and forested areas near a lake in southwestern China and found plastic particles in every sample, with concentrations as high as 42,960 particles per kilogram. Approximately 95% of the particles fell within the microplastic size range, and fibers were the dominant form, likely originating from textiles and agricultural materials. The study demonstrates that microplastic contamination in soils is extensive and varies with land use practices.
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.
Microplastic occurrence in urban and industrial soils of Ahvaz metropolis: A city with a sustained record of air pollution
Researchers documented microplastic contamination in urban and industrial soils of Ahvaz, Iran for the first time, finding concentrations up to 3,135 particles per kilogram in urban areas, with the highest levels in city centers lacking adequate sanitation infrastructure.
The spatial distribution of microplastics in topsoils of an urban environment - Coimbra city case-study
Researchers mapped microplastic contamination across urban soils in Coimbra, Portugal, comparing samples from parks, roadsides, and other land uses. They found microplastics in all soil samples, with higher concentrations in areas with more human activity and artificial surfaces. The study demonstrates that urban soils are significant reservoirs of microplastic pollution and that land use patterns strongly influence contamination levels.
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.
Microplastic characteristic in the soil across the Tibetan Plateau
Researchers systematically investigated microplastic pollution across the Tibetan Plateau, finding widespread contamination averaging 47 items per kilogram of soil, with fibers predominating and concentrations influenced by proximity to human activities.
Spatial Distributions, Compositional Profiles, Potential Sources, and Intfluencing Factors of Microplastics in Soils from Different Agricultural Farmlands in China: A National Perspective
Researchers conducted a nationwide survey of microplastics in Chinese agricultural soils, collecting 477 samples from 109 cities across 31 regions, and identified spatial distribution patterns and key factors influencing farmland microplastic contamination.
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.
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.
Assessing microplastic contamination in Icelandic soils: Insights from remote, agricultural, and urban environments
Microplastics were detected in all Icelandic soil samples from remote, agricultural, and urban sites, with urban soils showing the highest average counts (26,206 particles/kg) and remote soils the lowest (857 particles/kg), confirming that even sparsely inhabited areas experience MP contamination.
Spatial distribution of microplastics in soil with context to human activities: a case study from the urban center
Researchers mapped the spatial distribution of microplastics in topsoil across different land use types in an urbanized city in the upper Indus plain. They found that agricultural and urban areas had significantly higher microplastic concentrations than less developed areas, with fibers being the dominant particle type. The study links microplastic soil contamination patterns to specific human activities including irrigation with wastewater, plastic mulching, and industrial discharge.
Microplastics are ubiquitous and increasing in soil of a sprawling urban area, Phoenix (Arizona)
Researchers found that microplastics are ubiquitous in desert soils across the Phoenix, Arizona metropolitan area, with concentrations ranging from 122 to 1,299 particles per kilogram. The study suggests that soil microplastic levels increased significantly between 2005 and 2015, with atmospheric deposition contributing an average of 178 microplastics per square meter per day.
Identification, characterization, and implications of microplastics in soil – A case study of Bhopal, central India
Researchers identified and characterized microplastics in soils from Bhopal, central India, documenting their occurrence, distribution, and polymer composition to assess the extent of soil contamination from poor plastic waste management practices.
Contaminación del suelo por microplásticos: panorama actual
This review synthesizes current knowledge on soil contamination by microplastics as an emerging pollutant, analyzing 96 peer-reviewed studies from databases including Scopus and Web of Science to characterize sources, distribution patterns, and ecological effects of microplastics in terrestrial soil matrices.
Effects 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.
An evaluation on microplastic accumulations in Turkish soils under different land uses
Researchers analyzed 55 soil samples from agricultural and urban areas across three Turkish regions, finding higher microplastic concentrations in agricultural soils (averaging 193 particles/kg) than urban soils, with polyethylene fibers under 1 mm dominating both land use types.
First national reference of microplastic contamination of French soils
Researchers established the first nationwide reference data for microplastic contamination in French soils by analyzing 33 samples from diverse land uses across the country. They found microplastics in virtually all samples, with agricultural and urban soils showing the highest concentrations, and identified polyethylene and polypropylene as the most common polymer types. The study provides an important baseline for tracking future soil contamination trends in France.
Assessing microplastic contamination in Icelandic soils: Insights from pristine, agricultural, and urban environments
Researchers assessed microplastic contamination in Icelandic soils including pristine, agricultural, and urban sites to determine whether long-range atmospheric deposition reaches this sparsely populated island. Microplastics were detected across all site types, confirming atmospheric transport as a pathway to remote northern ecosystems.
Estimation of microplastics distribution in soil sample from District Una, Himachal Pradesh, India
Researchers measured microplastic distribution in soil samples from District Una in Himachal Pradesh, India, finding widespread microplastic contamination across agricultural and peri-urban sites. Fibre fragments dominated the sample profile, and concentrations were higher near roads and populated areas, pointing to human activity as the primary deposition pathway.
Pollution Characteristics of Microplastics in Soils in Southeastern Suburbs of Baoding City, China
Researchers characterized microplastic pollution in soils from the southeastern suburbs of Beijing, finding widespread contamination across 12 sampling sites with fibers and fragments as the dominant forms, and highlighting agricultural activities and urban runoff as likely sources. The study contributes soil-ecosystem baseline data to a research area dominated by aquatic microplastic studies.
Urban soil microplastic characterization across diverse land use types along the Anyangcheon stream in Seoul, Korea
Researchers characterized microplastic contamination in urban soils along the Anyangcheon stream in Seoul, South Korea, across three different land-use types. They found microplastics at all sampling locations, with variations in abundance and polymer composition between high schools, park playgrounds, and residential areas. The study provides new data on the spatial distribution of soil microplastics in densely populated urban settings and their potential relationship to nearby waterways.
Examining Soil Microplastics: Prevalence and Consequences Across Varied Land Use Contexts
Scientists examined microplastic contamination in soil samples from different land use areas in Makassar City, Indonesia. They found microplastics present across all sites, with the types and concentrations varying based on how the land was used, whether for agriculture, residential, or commercial purposes. The study suggests that human activity patterns strongly influence the amount and kind of microplastic pollution found in urban and agricultural soils.