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61,005 resultsShowing papers similar to Multi-Endpoint Toxicity Tests and Effect-Targeting Risk Assessment of Surface Water and Pollution Sources in a Typical Rural Area in the Yellow River Basin, China
ClearUsing a Battery of Bioassays to Assess the Toxicity of Wastewater Treatment Plant Effluents in Industrial Parks
Researchers used a battery of bioassays to assess environmental health risks from industrial wastewater along the Yangtze River, finding that treatment processes effectively reduced most toxicity endpoints including estrogenic activity, DNA damage, and mutagenicity. Polycyclic aromatic hydrocarbons (PAHs) were identified as the primary chemicals of concern in some wastewater samples.
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.
Toxicity assessment of wastewater from the industrial parks along Yangtze River, China, using a battery of bioassays
Researchers conducted a comprehensive toxicity assessment of industrial wastewater from parks along the Yangtze River using a battery of bioassays, identifying polycyclic aromatic hydrocarbons as key contributors to the environmental health risks detected in the samples.
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.
Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
Researchers analyzed six trace element pollutants across water, sediment, and soil in a 28-km river stretch in China and found that industrial and agricultural activities were the main sources, with ingestion being the top health risk pathway — highlighting the need to assess connected environmental systems together rather than in isolation.
Water Quality Evaluation, Spatial Distribution Characteristics, and Source Analysis of Pollutants in Wanquan River, China
This paper is not about microplastics — it assesses water quality in a Chinese river basin, finding that agricultural runoff and domestic sewage are the main pollution sources, without examining plastic contamination.
Spatial and temporal distribution characteristics of antibiotics and heavy metals in the Yitong River basin and ecological risk assessment
Researchers analyzed the distribution of antibiotics and heavy metals in the Yitong River in China, finding that antibiotics were higher in urban areas while heavy metals like cadmium were more concentrated near agricultural zones — and that both posed elevated health risks to children. The fluoroquinolone antibiotics ofloxacin and norfloxacin were at high ecological risk levels, highlighting the river as a complex pollution hotspot requiring targeted intervention.
Determining the Effect of Discharge of the Coastal Wastewater Treatment Plants on the Toxicity of Surface Waters: A Case Study in İstanbul
Researchers evaluated the toxicity of coastal surface waters affected by wastewater treatment plant discharges in Istanbul, assessing how xenobiotic compounds from domestic and industrial sources interact to produce synergistic or antagonistic toxic effects on aquatic ecosystems.
Multiple Pollutants from Crop and Livestock Production in the Yangtze River: Status and Challenges
Researchers examined multiple agricultural pollutants -- including chemical fertilizers, organophosphorus pesticides, and plastic waste -- in the Yangtze River Basin, finding that intensified cash crop and livestock production is driving water quality degradation and threatening Agriculture Green Development goals.
Evaluation of nitrate pollution sources in surface water across the typical rural-urban interface: a case study of Wen-Rui Tang River, China
Researchers identified the main sources of nitrate pollution in a rural-urban Chinese river, finding that human sewage and agricultural runoff were the primary contributors. While focused on nitrogen pollution, the study illustrates how mixed land use creates complex water quality challenges in rivers that also carry microplastics.
Environmental behavior of microplastic - heavy metal synergistic contamination in a typical urban-rural river network
Researchers investigated the seasonal co-occurrence of microplastics and heavy metals in urban and rural rivers in a Chinese inland city. They found that both pollutant types were present in all water samples and that microplastics can adsorb heavy metals, potentially increasing the combined environmental risk. The study reveals that river networks connecting urban and rural areas serve as pathways for spreading this dual contamination.
Identification of Groundwater Pollution Characteristics and Health Risk Assessment of a Landfill in a Low Permeability Area
Researchers assessed groundwater quality and health risks near a landfill in a low-permeability red-bed area of Southwest China, finding elevated concentrations of heavy metals and organic pollutants in shallow aquifers used for drinking water by nearby rural residents.
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.
Distribution pattern and ecological risk assessment of heavy metals in Henan section of the Yellow River
Researchers assessed heavy metal pollution in sediments of the Henan section of the Yellow River, finding elevated concentrations of several metals including cadmium and lead, with ecological risk assessments indicating moderate to high risk in certain areas driven by both natural and anthropogenic inputs.
Identifying the characteristics of and factors driving spatiotemporal water quality variations in the Yellow River Basin, China, from 2008 to 2020
This study analyzed water quality data from the Yellow River Basin in China from 2008 to 2020, identifying pollution sources and spatial trends across the watershed. While focused on general water quality rather than microplastics specifically, such assessments provide important context for understanding pollution dynamics in large river systems.
How much do the conventional parameters contribute to the biological toxicity of surface water in different types of villages?
Researchers investigated surface water quality in different types of Chinese villages and found that conventional physicochemical parameters alone were insufficient to fully characterize biological toxicity, with the contribution of each parameter varying significantly by village type and pollution source.
Distribution, sources and multi-dimensional environmental risk assessment of microplastics in soils and groundwater along the middle and lower reaches of the Yellow river
Researchers assessed microplastic contamination in both soil and groundwater along the middle and lower reaches of China's Yellow River. They found soil concentrations ranging from 426 to over 3,000 particles per kilogram, with fibers being the dominant shape in both soil and groundwater. A novel risk assessment approach revealed that while soil contamination was mostly moderate, nearly a quarter of groundwater samples reached high-risk levels.
Identification Sources and High-Risk Areas of Sediment Heavy Metals in the Yellow River by Geographical Detector Method
Scientists measured heavy metal contamination in river sediments of the Yellow River in Inner Mongolia, identifying industrial emissions and agricultural activities as the main sources. While focused on heavy metals, the research is relevant because microplastics frequently co-occur with and transport heavy metal pollutants in river systems.
Occurrence and distribution of several endocrine-disrupting chemicals in a chemical park: exploring the health risks of multiple pollutants
Researchers measured 28 endocrine-disrupting chemicals — including triclosan, bisphenols, and phthalates — in soil, sediment, and sludge from the Yangkou Chemical Industrial Park, finding widespread contamination and assessing associated ecological and human health risks.
[Occurrence Characteristics and Ecological Risk Assessment of Microplastic Pollution in the Yellow River Basin].
Researchers examined the spatial distribution, composition characteristics, and ecological risks of microplastic pollution across the Yellow River Basin in China, assessing contamination levels in the nation's historically significant waterway system.
Co-occurrence of microplastics and heavy metals in sediments of the Lanzhou section of the Yellow River: Distribution characterizations and comprehensive ecological risk assessment
Researchers assessed the co-occurrence of microplastics and heavy metals in sediments from the Yellow River's Lanzhou section, finding microplastic abundance ranging from 243 to 4,289 items per kilogram, predominantly small fragments under 100 micrometers. The study developed an optimized two-dimensional index for evaluating combined pollutant risks and found severe composite pollution, with copper and cadmium showing the highest contamination levels. The findings highlight the need for integrated risk assessment frameworks in urban river systems.
Distribution, Sources, and Risk of Polychlorinated Biphenyls in the Largest Irrigation Area in the Yellow River Basin
Researchers found polychlorinated biphenyl (PCB) contamination in agricultural soils of China's Yellow River irrigation area, with concentrations accumulating in shallow soil layers and posing measurable non-carcinogenic and carcinogenic health risks to local residents.
Microplastic pollution in the Yangtze River Basin: Heterogeneity of abundances and characteristics in different environments
Researchers compiled microplastic data from 624 sampling sites across the Yangtze River Basin covering water, sediment, soil, and biota, revealing heterogeneous contamination patterns driven by local land use, population density, and wastewater infrastructure.
Spatial distributions of macronutrients, heavy metals and microplastics in surface sediments of the mainstem and lakes in the middle part of the Yellow River Basin
Researchers mapped the distribution of macronutrients, heavy metals, and microplastics in sediments along the middle section of the Yellow River and adjacent lakes in China. They found that microplastic concentrations ranged from 233 to 3,333 items per kilogram in river sediments, with nylon as the dominant polymer type. Contamination levels increased significantly after the river flowed through intensive agricultural areas, with urban lakes showing the highest heavy metal concentrations.