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20 resultsShowing papers similar to Accumulation of soil microplastics and phthalate esters in nine typical Chinese croplands using plastic mulch film
ClearCo-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.
Occurrence and health risk assessment of phthalate ester pollution in mulched farmland soil at a national scale, China
Researchers analyzed farmland soils across 29 Chinese provinces and found widespread phthalate ester contamination linked to plastic mulching films, with di(2-ethylhexyl) phthalate posing carcinogenic risks exceeding safety thresholds in over 11% of samples, pointing to inadequate current regulations on agricultural plastic use.
Agricultural plastic mulching as a source of microplastics in the terrestrial environment
Researchers analyzed 384 soil samples from 19 Chinese provinces and found that macroplastic fragments were concentrated in agricultural fields with plastic mulch film use, providing large-scale field evidence linking agricultural mulching to terrestrial plastic contamination.
Occurrence and characteristics of microplastics in soils from greenhouse and open-field cultivation using plastic mulch film
Researchers surveyed microplastic contamination in agricultural soils across three regions in China, comparing greenhouse and open-field cultivation that uses plastic mulch film. They found that microplastic abundance varied significantly by region and that the type of mulching practice accounted for over 34% of the variation in microplastic composition. The study provides important baseline data on how plastic film use in farming contributes to soil microplastic pollution.
The abundance, characteristics and distribution of microplastics (MPs) in farmland soil—Based on research in China
This review analyzed microplastic contamination in farmland soil across China and found that fertilizer use and plastic mulch film are the biggest contributors, increasing soil microplastic levels by 170% and 232% respectively. The most common types found were polyethylene and polypropylene fragments and fibers. These findings are concerning because microplastics in farm soil can be taken up by crops and enter the human food supply.
[Distribution Characteristics and Risk Assessment of Microplastics in Farmland Soil in Guyuan].
Researchers analyzed microplastic distribution in agricultural soils in Guyuan City, China, finding concentrations ranging from 186 to 1,286 particles per kg, with greenhouse farming soils containing 35–229% more microplastics than open fields and PE and PP being the dominant polymer types. The findings raise concern for food chain contamination and demonstrate that plastic mulch film use in facility agriculture significantly increases soil microplastic accumulation.
Exploring the Occurrence Characteristics of Microplastics in Typical Maize Farmland Soils With Long-Term Plastic Film Mulching in Northern China
A survey of 225 soil samples from maize farmland with long-term plastic film mulching in northern China found widespread microplastic contamination, with abundance, distribution, and polymer composition reflecting the history of film use and agricultural management practices.
Pollution characteristics and affecting factors of phthalate esters in agricultural soils in mainland China
Scientists tested farmland soil samples from across China and found phthalate plasticizers (chemicals added to make plastics flexible) in 100% of samples, with the highest levels in greenhouse soils. The concentrations correlated with microplastic levels and plastic mulch film use, and some samples exceeded safety thresholds for agricultural soil. These chemicals can transfer from soil to crops and pose health risks including hormone disruption, making this a food safety concern for the large populations that depend on Chinese agriculture.
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.
Impact of plastic film mulching on microplastic in farmland soils in Guangdong province, China
Researchers surveyed farmland in Guangdong, China's largest economic province, to determine how much plastic mulch film contributes to soil microplastic pollution. They found that fields using plastic mulch had significantly higher microplastic levels than those without, and the contamination correlated with years of mulch use. The study helps clarify the direct agricultural contribution to soil microplastic pollution in regions with many overlapping pollution 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.
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.
Status, characteristics, and ecological risks of microplastics in farmland surface soils cultivated with different crops across mainland China
Researchers conducted a nationwide survey of microplastics in farmland soils across mainland China, covering over 30 crop types in 109 cities. They found microplastics in all sampled soils, with concentrations varying by crop type, region, and farming practices such as plastic film mulching and irrigation methods. The study provides the most comprehensive picture to date of agricultural microplastic contamination in China and identifies the key farming practices that contribute most to soil pollution.
Potential sources and occurrence of macro-plastics and microplastics pollution in farmland soils: A typical case of China
This review examines plastic pollution in Chinese farmland soils, finding that agricultural practices like mulch film use and sewage sludge application are major sources of both macro- and microplastics that accumulate over time.
Microplastics in agricultural soils on the coastal plain of Hangzhou Bay, east China: Multiple sources other than plastic mulching film
Researchers analyzed agricultural soils from the Hangzhou Bay coastal plain and found microplastic concentrations of 571 pieces/kg in mulched soils versus 263 pieces/kg in non-mulched soils, with irrigation water identified as an additional major source alongside mulch films. The findings point to multiple input pathways for microplastic accumulation in Chinese farmland soils.
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.
Distribution of microplastics in mulched soil in Xinjiang, China
Researchers measured microplastic distribution in plastic-mulched farmland soils in Xinjiang, China, finding that plastic particles concentrate in the top soil layer where mulch films fragment. The dominant polymer found was polyethylene, consistent with the plastic mulch films widely used in agriculture across the region.
Potential sources and occurrence of macro-plastics and microplastics pollution in farmland soils: A typical case of China
This study provides the first comprehensive survey of plastic pollution in Chinese farmland soil, analyzing data from 163 publications covering 728 sites. The average microplastic abundance was 4,537 particles per kilogram of dry soil, with agricultural plastic films and organic waste being the biggest sources. Since China is the world's largest user of agricultural plastics, these findings highlight how farming practices can lead to significant microplastic contamination of the soil that grows our food.
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.
The occurrence and distribution characteristics of microplastics in the agricultural soils of Shaanxi Province, in north-western China
Researchers surveyed microplastic abundance and polymer types in agricultural soils across multiple counties in Shaanxi Province, northwestern China, finding widespread contamination correlated with agricultural activity intensity and plastic mulch film use.