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Investigation on Microplastics in Soil near Landfills in the Republic of Korea
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Researchers found microplastics in soil samples taken near two South Korean landfills, averaging 73–98 particles per kilogram, with polypropylene and polyethylene being the dominant types and fragments being the most common shape. The high proportion of secondary (weathered) microplastics indicates that fragmentation of larger plastic waste is actively occurring at these sites. These findings confirm that landfills are a significant local source of microplastic soil contamination and warrant inclusion in national monitoring programs.
Microplastics can cause physical, chemical, biological, and structural problems in soil. In this study, microplastics were identified in the soil near two landfills where contamination by microplastics was expected. Pretreatment was performed to remove organic matter and to separate microplastics from the soil samples. FT-IR microscope analysis was performed to confirm the quantity and types of microplastics. The colors and shapes of microplastics in the soil were analyzed using a digital microscope. Averages of 73.4 MPs(ea)/kg and 97.8 MPs(ea)/kg of microplastics were identified in the soil at the two landfills. The main shapes of microplastics were fragments, fibers, and films, and it was confirmed that secondary plastics were found at a high rate. The major plastic types were identified as PP and PE, ranging from 62.5 to 65.3% in proportion, followed by PET, PS, nylon, PMMA, and PVC. As for the colors of microplastics, black had the highest percentage, while other microplastics were identified as being white, blue, transparent, gray, green, red, and yellow. These results can be taken as important data indicating that microplastics in the soil around landfills can be affected by landfill waste.
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Urban soil microplastic characterization across diverse land use types along the Anyangcheon stream in Seoul, Korea
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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.
Microplastics contamination in the soil from Urban Landfill site, Dhaka, Bangladesh
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Researchers assessed microplastic contamination in soil samples from an urban landfill site in Dhaka, Bangladesh. They found microplastics in all samples, predominantly fibers and fragments made of polyethylene and polypropylene, with concentrations varying across the landfill. The study provides some of the first evidence of terrestrial microplastic pollution in Bangladesh and identifies urban landfills as significant reservoirs of soil microplastic contamination.
Microplastics in soil and groundwater of Korea: Occurrence, characteristics and risk assessment
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This review synthesizes recent Korean research on microplastic contamination in soil and groundwater, finding that PP, PE, PET, and PVC are the most common polymers, fragments dominate in shape (indicating secondary breakdown of plastic products), and agricultural practices are major local sources including plastic mulch films and greenhouse covers. Groundwater microplastic levels vary seasonally with monsoon rainfall, while soil levels remain relatively stable year-round. The review concludes that Korea needs a nationwide investigation and tighter regulations on agricultural plastic use to address what is already a low-to-moderate ecological risk in studied regions.
Microplastic pollution in landfill soil: Emerging threats the environmental and public health
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Researchers measured microplastic contamination in soil at a landfill near residential areas in Indonesia and found extremely high levels of over 60,000 particles per kilogram. The most common types were fragments of polyethylene, PVC, polystyrene, and polypropylene. The study raises public health concerns because landfills near populated areas can release microplastics into surrounding soil and water, creating exposure pathways for nearby communities.
Microplastic Abundance and Characteristics in The Soil Around the Jambi Talang Gulo Landfill
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Researchers measured microplastic abundance and characterized particle types in soil surrounding the Talang Gulo landfill in Jambi, Indonesia, finding that the high volume of plastic waste at the facility contributes to elevated microplastic contamination in surrounding soils through environmental weathering and fragmentation.
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