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Papers
61,005 resultsShowing papers similar to The Distribution Characteristics and Ecological Risks of Alkylphenols and the Relationships between Alkylphenols and Different Types of Land Use
ClearSpatial Distribution and Ecological Risk of Microplastic Contamination in River Water Near a Landfill Leachate Disposal Area: A Case Study of Supit Urang Landfill, Malang City, Indonesia
Researchers mapped the spatial distribution and ecological risk of microplastic contamination across river sediments in a Chinese river system, finding risk levels varied with proximity to urban centers and industrial zones, and that certain polymer types posed elevated ecological hazard.
Analysis of the Spatial Distribution Characteristics of Emerging Pollutants in China
Researchers mapped the spatial distribution of four types of emerging pollutants in China's water environment, including microplastics, endocrine disruptors, brominated flame retardants, and perfluorinated compounds. They found that pollution levels correlate with regional economic development, with the Yangtze River Delta, Pearl River Delta, and Beijing-Tianjin-Hebei region showing significantly higher contamination. The study provides a reference framework for emerging pollutant prevention and control across China.
Microplastic pollution in sophisticated urban river systems: Combined influence of land-use types and physicochemical characteristics
This study assessed microplastic pollution across an urban river network in China, finding that land-use type and water physicochemical properties jointly influence microplastic distribution, with industrial and residential areas contributing highest loads.
Environmental Behaviors, Ecological Risks, and Toxic Mechanisms of Emerging and Legacy Contaminants in China: From Distribution to Management
Researchers reviewed the environmental distribution, ecological risks, and toxic mechanisms of both emerging and legacy contaminants in China's aquatic environments, examining how industrialization and urbanization drive the co-occurrence and combined pollution that threatens ecosystem integrity and human health.
Microplastic pollution in Chinese Rivers: A detailed analysis of distribution, risk factors, and ecological impact
Researchers aggregated data from 2,474 microplastic samples across 165 publications to assess ecological risk in Chinese rivers, finding widespread contamination with average abundance varying substantially by watershed characteristics. A revised risk assessment accounting for particle morphology and polymer toxicity raised concern levels beyond previous estimates.
Characteristics and sources of microplastic pollution in the water and sediments of the Jinjiang River Basin
Researchers characterized microplastic pollution across surface water, groundwater, and sediments throughout the Jinjiang River Basin in China, tracing sources via principal component analysis and documenting contamination from inland areas to the estuary.
[Basin Distribution and Ecological Risk of Microplastics in Surface Water Bodies in China].
A comprehensive analysis of data from China's ten major river basins (2014–2023) found microplastic contamination in rivers, lakes, reservoirs, and estuaries across the country, with microplastic abundance strongly correlating with population density and economic output. Polypropylene and polyethylene were the dominant polymers, and the Haihe River Basin near Beijing was classified as high ecological risk. The study also highlighted a major data gap: far less is known about microplastics in China's less-populated northwestern regions. These findings provide a national-scale picture of where microplastic pollution is most severe and what types of plastics are driving the ecological risk.
Microplastic Pollution in China’s Aquatic Systems: Spatial Distribution, Transport Pathways, and Controlling Strategies
This review synthesizes recent findings on microplastic pollution across China's rivers, lakes, reservoirs, and coastal waters. Researchers found that contamination levels vary dramatically by location, with urban waterways showing the highest concentrations and polypropylene and polyethylene being the most common polymer types. The study identifies rivers as major transport pathways carrying microplastics from inland areas to the sea and evaluates strategies for reducing this pollution.
Selected legacy and emerging organic contaminants in sediments of China's Yangtze – the world's third longest river: Response to anthropogenic activities
Researchers conducted the first extensive survey of legacy and emerging organic contaminants in sediments along the entire Yangtze River. They found that pharmaceuticals and personal care products were the dominant contaminants, followed by polychlorinated biphenyls, neonicotinoid pesticides, and polybrominated diphenyl ethers. The study links contamination levels to anthropogenic activities such as urbanization, agriculture, and industrial discharge along different stretches of the river.
Spatio-temporal analysis of the Brantas river water quality status by using principal component weighted index (PCWI)
Researchers applied principal component analysis and a weighted water quality index to evaluate the spatial and temporal water quality of the Brantas River in Indonesia. The study identified pollution hotspots linked to domestic and industrial activity along the river. This type of integrated water quality monitoring is essential for detecting emerging contaminants including microplastics in river systems.
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.
Occurrence and ecological risks of organochlorine pesticides and polychlorinated biphenyls in a semi-enclosed urban watershed
Researchers measured organochlorine pesticides and polychlorinated biphenyls in the water and sediment of a semi-enclosed coastal watershed in China influenced by industrial and agricultural activities. They found that thermoplastics were the primary source of PCB contamination, contributing over 57% of detected levels, while certain pesticides and PCBs posed ecological risks to aquatic organisms. The study underscores the need for continued monitoring in areas where industrial and agricultural pollution converge in coastal waters.
Identification of surface water quality pollution areas and pollution sources based on spatial clustering and random forest in Henan, China
This study used spatial cluster analysis to identify surface water quality pollution areas and trace pollution sources across Henan Province, China. Spatial dependence analysis revealed distinct contaminated zones and their likely sources, enabling targeted remediation strategies for different pollution types.
Spatial distribution, source apportionment and potential ecological risk assessment of suspended atmosphere microplastics in different underlying surfaces in Harbin
Researchers investigated the spatial distribution and sources of airborne microplastics suspended in the atmosphere across six different land-use types in Harbin, China. They found microplastics present above all surfaces, with polypropylene, PET, and polyethylene being the most common types. The study used source analysis to trace the contamination to local activities and assessed the potential ecological risk of breathing in these suspended particles.
A new holistic perspective to assess the ecological risk of microplastics: A case study in Baiyangdian Basin, China
Researchers developed a more comprehensive method for assessing the ecological risks of microplastic pollution by considering not just concentration but also the physical and chemical properties of the particles. Applied to a Chinese wetland basin, the approach revealed that traditional methods significantly underestimate the true ecological risk, with human activity and poor water flow contributing to the highest danger zones.
Heavy metal pollution and ecological risk under different land use types: based on the similarity of pollution sources and comparing the results of three evaluation models
Researchers analyzed heavy metal contamination across five land use types on the Qinghai-Tibet Plateau, finding that industrial activities like metallurgy and mining were the primary sources of cadmium, copper, and lead pollution, with the highest risk levels in watered and urban lands rather than grasslands.
Spatial–Temporal and Risk Assessment of Microplastics in the Surface Water of the Qinhuai River during Different Rainfall Seasons in Nanjing City, China
Researchers conducted a spatial-temporal analysis of microplastic contamination and risk in a river system across multiple seasons and sites, finding that concentrations varied significantly with location and time of year. Urban and industrial zones showed the highest microplastic loads and associated ecological risk.
Hydrophobic organic contaminants affiliated with polymer-specific microplastics in urban river tributaries and estuaries
Researchers measured hydrophobic organic contaminants affiliated with different types of floating microplastics collected from tributaries and estuaries in the Pearl River Delta, South China. The study found that contaminants were highly concentrated in microplastics, with polyethylene carrying the largest share of pollutant outflow to coastal waters, suggesting that microplastics serve as significant transport vectors for toxic chemicals in aquatic environments.
Distribution, Environmental Risk Assessment, and Key Drivers of Microplastics in Farmland Soils Across Agricultural Zones in China
Researchers mapped the distribution and environmental risk of microplastics across a study area while identifying the key drivers of spatial variation, including land use and proximity to pollution sources. The findings provide a framework for prioritizing cleanup and management efforts in microplastic-contaminated environments.
Characteristics and Influencing Factors of Spatial Differentiation of Urban Black and Odorous Waters in China
This Chinese study analyzed the geographic distribution of urban black and odorous water bodies — severely polluted urban waterways — and the factors driving their spatial patterns. Urban waterways are major pathways for microplastics from cities to receiving water bodies and coastal zones.
Risk Evaluation on the Pcbs and Ocps Residues in the Water of Irtysh River
This paper is not about microplastics; it assesses the distribution and ecological risk of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in the Irtysh River in China.
Microplastic Transport and Accumulation in Rural Waterbodies: Insights from a Small Catchment in East China
Microplastics were sampled from drainage ditch sediments across forest, agricultural, horticultural, and urban areas in a Nanjing catchment, finding 922 MP particles of six dominant polymer types with concentrations varying by land use and pond connectivity within the catchment.
Spatiotemporal changes in land use and residential satisfaction in the Huai River-Gaoyou Lake Rim area
Researchers used two decades of satellite data to track land use changes and ecological risks in China's Jiangsu Province, focusing on shifts between agricultural, urban, and wetland areas. Land use changes alter how plastic waste and microplastics are transported and deposited in freshwater ecosystems.
Influence of land use class and configuration on water-sediment partitioning of heavy metals
Researchers analyzed how land use patterns and population density influence the partitioning of heavy metals between river water and sediment, finding that agricultural land discharges the highest dissolved metal fractions and that fragmenting anthropogenic land into smaller patches reduces water-column metal pollution.