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61,005 resultsShowing papers similar to High abundance of microplastics in groundwater in Jiaodong Peninsula, China
ClearExistence of microplastics in soil and groundwater in Jiaodong Peninsula
Researchers found microplastics in both soil and groundwater samples from a Chinese coastal region, with fibers dominant in groundwater and fragments dominant in soils. The discovery of microplastics in groundwater raises concerns about plastic contamination of drinking water aquifers in agricultural areas.
Microplastics contamination in groundwater of a drinking-water source area, northern China
Researchers investigated microplastic contamination in shallow groundwater from a major drinking-water source area in northern China. The study found microplastics present in groundwater samples, with their abundance, morphology, and chemical composition varying across the study area and correlating with nearby human activities.
Occurrence, sources, and ecological risk of microplastics in groundwater: Impacts by agricultural activities and atmospheric deposition
Researchers measured microplastic levels in groundwater beneath Shanghai and found concentrations ranging from 3 to 99 particles per liter, with agricultural activity and atmospheric deposition identified as primary sources. The study used multiple risk indices to show that some areas had concerning levels of contamination. Since groundwater is a major drinking water source for many communities, this finding highlights a direct pathway for microplastic exposure in humans.
Seasonal dynamics and typology of microplastic pollution in Huixian karst wetland groundwater: Implications for ecosystem health
Researchers tracked microplastic levels in groundwater beneath a karst wetland in China across seasons, finding contamination ranging from about 1 to 49 particles per liter. The unique cave-and-underground-river geology of karst regions allows microplastics to migrate from the surface into groundwater more easily than in other terrains, with agricultural runoff and domestic wastewater identified as the main pollution sources.
Microplastics in groundwater: a global analysis
Researchers conducted a global groundwater sampling study to characterize microplastic contamination in aquifer systems worldwide, investigating transport mechanisms and fate of particles in anoxic subsurface environments where knowledge gaps remain despite extensive research on surface water systems.
Abundance, spatial distribution, and characteristics of microplastics in agricultural soils and their relationship with contributing factors
Researchers found microplastic concentrations of 2,800 to 82,500 particles per kilogram in agricultural soils of Hainan Island, China, with plastic mulching, farming practices, and environmental factors all contributing to spatial variation in contamination levels.
Microplastics Pollution in the Groundwater of Three Land Use Types, Southeastern Hungary
Researchers investigated microplastic pollution in groundwater across three land use types in southeastern Hungary, providing data on the rate and distribution of microplastic contamination in a freshwater resource that has received far less study than surface water bodies.
Contamination, morphological and chemical characterization, and hazard risk analyses of microplastics in drinking water sourced from groundwater in a developing nation
Researchers analyzed groundwater from six coastal districts in a developing nation and found widespread microplastic contamination, with fibers and fragments of polyethylene and polypropylene being the most common types. Since groundwater is the primary drinking water source in many developing countries, this contamination represents a direct pathway for microplastic ingestion by millions of people.
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.
Microplastic pollution in the groundwater under a bedrock island in the South China sea
This is the first study to examine microplastic pollution in groundwater beneath a small island in the South China Sea, finding 34 to 64 particles per liter despite minimal industrial activity. Over 80% of the microplastics were polyester fibers originating from the island's own plastic waste rather than from the surrounding ocean. The findings are significant because they show that even remote island groundwater, often the only drinking water source for island communities, is contaminated with microplastics.
Occurrence and Sources of Microplastics in groundwater divided by well depth and Hydrogeology in South Korea
Researchers investigated microplastic occurrence in South Korean groundwater stratified by well depth and hydrogeological setting, finding microplastics in wells across all depths and identifying surface connectivity as a key factor controlling contamination levels.
A threat beneath the surface: Microplastic contamination in the groundwater of one of Europe's largest wetland complexes
Researchers confirmed microplastic contamination in groundwater samples from one of the world's most populous regions, documenting particle abundance, polymer types, and potential infiltration pathways from surface contamination through soil to subsurface aquifers.
Microplastic distribution in monitoring well water in the final landfill area Putri Cempo Surakarta Indonesia
Researchers sampled groundwater from seven monitoring wells around a landfill in Surakarta, Indonesia, finding microplastic concentrations ranging from 320 to 1,960 particles per liter. Polystyrene, polycarbonate, and polypropylene fragments dominated the samples, confirming that landfills are a significant source of microplastic contamination in groundwater that communities depend on for drinking water.
Distribution and characteristics of microplastics in the sediments of Poyang Lake, China
Researchers found microplastic contamination in sediments across Poyang Lake, China, with abundances ranging from 11 to 3,153 items per kilogram dry weight, and identified significant spatial variability linked to human activity and hydrological conditions.
Pollution characteristics and source analysis of microplastics in the Qiantang River in southeastern China
Researchers found that microplastic abundance in the Qiantang River near Hangzhou, China, ranged from 1.5 to 9.4 items per liter, with higher levels during dry periods and concentrations correlated with local GDP and industrial manufacturing activity.
Quantitative assessment on the distribution patterns of microplastics in global inland waters
Researchers compiled data from over 5,000 observations across 301 published studies to map microplastic levels in freshwater bodies worldwide, finding concentrations ranging from near zero to 4.3 million particles per cubic meter. Human development, farming activity, and water runoff were the strongest predictors of contamination, with China and parts of Asia showing particularly high levels.
Occurrence and distribution of microplastics in the adjacent environment of Yellow River Delta, China
Researchers assessed microplastic pollution across water, sediment, and soil samples in the Yellow River Delta of China. The study found microplastic concentrations ranging from 0.5 to nearly 8 particles per liter in water and up to 4,200 particles per kilogram in sediments, with polyethylene and polypropylene being the most common polymer types, indicating widespread plastic contamination in this coastal environment.
Occurrence, distribution, and characteristics of microplastics in agricultural soil around a solid waste treatment center in southeast China
Researchers found microplastic contamination in all agricultural soil samples surrounding a solid waste treatment center in southeastern China, with concentrations up to 2,360 particles per kilogram and evidence that weathered polyethylene and polypropylene particles are accumulating heavy metals on their surfaces.
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.
Microplastic pollution in North Yellow Sea, China: Observations on occurrence, distribution and identification
Researchers surveyed microplastic pollution across the North Yellow Sea, documenting their occurrence, distribution, and characteristics, and finding widespread contamination with higher concentrations in coastal areas and near river inputs.
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.
Spatial and Temporal Distribution Characteristics and Potential Sources of Microplastic Pollution in China’s Freshwater Environments
Researchers surveyed microplastic pollution across freshwater environments in 21 major Chinese cities and found an average concentration of about 3,500 particles per cubic meter. The most common types were fibers, and concentrations generally increased from western to eastern China, closely tracking levels of human activity. The study found that microplastic abundance peaked in summer, likely driven by increased rainfall washing particles into waterways.
Microplastics in the surface sediments from the Beijiang River littoral zone: Composition, abundance, surface textures and interaction with heavy metals
Researchers characterized microplastics in surface sediments from the Beijiang River in China, finding widespread contamination with characteristics indicating multiple local sources including urban runoff and agricultural activity.
Occurrence and spatial distribution of microplastics, and their correlation with petroleum in coastal waters of Hainan Island, China
Researchers investigated microplastics in coastal waters of Hainan Island, China, finding higher concentrations near harbors and industrial zones with a significant positive correlation between microplastic abundance and petroleum contamination, suggesting shared pollution sources.