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61,005 resultsShowing papers similar to Occurrence and Speciation of Pollutants in Guilin Huixian Wetland: Nutrients, Microplastics, Heavy Metals, and Emerging Contaminants
ClearImpact Imposed by Urbanization on Soil Heavy Metal Content of Lake Wetland and Evaluation of Ecological Risks in East Dongting Lake in China
This Chinese study measured heavy metal contamination in wetland soils of East Dongting Lake, finding elevated concentrations of several metals linked to nearby industrial and agricultural activities. Wetland contamination with heavy metals often co-occurs with microplastic pollution, and these combined stressors can have synergistic harmful effects on wetland ecosystems.
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.
Integrative Evaluation of the Ecological Hazards by Microplastics and Heavy Metals in Wetland Ecosystem
Researchers conducted an integrative ecological hazard assessment of microplastics combined with heavy metals, evaluating their combined toxicity to aquatic organisms. The study found that co-contamination with heavy metals and microplastics poses greater ecological risk than either pollutant alone.
Spatial distribution characteristics and migration of microplastics in surface water, groundwater and sediment in karst areas: The case of Yulong River in Guilin, Southwest China
Researchers investigated microplastic distribution in surface water, sediment, and groundwater in the karst landscape of the Yulong River in Guilin, China. They found microplastic pollution across all water compartments, with living areas showing the highest contamination and tourism-related disposable plastics identified as a primary source. The study suggests that microplastics reach groundwater through hydraulic exchange with surface water in karst areas rather than through soil infiltration.
Ecological risk assessment of microplastics and heavy metals in Northern Vietnam's estuarine sediments: A case study of Ba Lat and Bach Dang
Researchers assessed microplastic abundance and ecological risk alongside ten heavy metals in estuarine sediments from the Ba Lat and Bach Dang estuaries of northern Vietnam's Red-Thai Binh River system, finding co-contamination patterns that pose compounded ecological risks to these biodiverse coastal ecosystems.
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.
Potential risk of co-occurrence of microplastics and chlorinated persistent organic pollutants to coastal wetlands: Evidence from a case study
Researchers investigated the co-occurrence of microplastics and chlorinated persistent organic pollutants in coastal wetlands of Zhejiang, China, finding microplastics in 100 percent of samples. Although wetland microplastic levels were lower than other land types, the plastics showed strong capacity to adsorb and concentrate toxic organic chemicals. The study highlights the combined contamination risk that microplastics and persistent pollutants pose to sensitive coastal ecosystems.
Current practices and future perspectives of microplastic pollution in freshwater ecosystems in China
This review summarizes current knowledge and future research priorities for microplastic pollution in China's freshwater ecosystems, including rivers, lakes, and wetlands, identifying both urban and agricultural sources as major contributors. The authors call for nationally coordinated monitoring, standardized methods, and stronger regulatory frameworks to address the growing microplastic burden in Chinese freshwater systems.
Silent contaminants in a vanishing wetland: microplastics and their ecological risks in the Gavkhoni Wetland sediments
Microplastics and other contaminants were detected in a rapidly disappearing wetland, documenting plastic pollution in a fragile ecosystem facing both habitat loss and chemical contamination. The study raises concerns about cumulative stressors threatening wetland biodiversity.
Microplastics pollution in inland freshwaters of China: A case study in urban surface waters of Wuhan, China
Researchers characterized microplastic pollution in inland freshwaters across urban suburban areas of China, finding contamination that reflected land use intensity and population density in the surrounding catchments.
Relationship between microplastics and heavy metals in Tam Giang-Cau Hai lagoon sediments
Researchers investigated the distribution and interactions of microplastics and ten heavy metals in sediments of the Tam Giang-Cau Hai Lagoon in Vietnam, finding moderate microplastic contamination and using Spearman correlation and PCA to assess relationships between sediment properties, metal concentrations, and plastic abundance. The study provides baseline data for understanding co-pollution dynamics in this coastal lagoon ecosystem.
Co-exposure of microplastics with heavy metals increases environmental pressure in the endangered and rare wildlife reserve: A case study of the zhalong wetland red-crowned crane nature reserve, northeast China
Researchers studied how microplastics and heavy metals interact in the Zhalong Wetland, a nature reserve for endangered red-crowned cranes in northeast China. They found that microplastics in the wetland carried elevated levels of heavy metals on their surfaces, creating a combined contamination risk greater than either pollutant alone. The study raises concerns about the compounded environmental pressures facing protected wildlife areas from multiple pollutant types.
Microplastics in Yellow River Delta wetland: Occurrence, characteristics, human influences, and marker
Microplastics were surveyed across different zones of the Yellow River Delta wetland with varying levels of human activity, finding widespread contamination even in protected areas with minimal human presence, with MP abundances ranging from 136 to 2060 items/kg. The study identifies direct human activities as a stronger driver of wetland microplastic contamination than tourism.
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.
Investigation of ecological risk of microplastics in peatland areas: A case study in Vietnam
Microplastics were characterized in peatland areas of Vietnam's Mekong Delta, with polyvinyl chloride (60.7%), polyethylene (25.8%), and polypropylene (11.9%) as the dominant polymer types. Ecological risk assessment indicated moderate to high risk, highlighting peatlands as an underexplored sink for plastic contamination.
Urban natural wetland as a sink for microplastics: A case from Lalu Wetland in Tibet, China
Microplastics were detected in water and sediment from Lalu Wetland in Tibet, a high-altitude urban natural wetland, establishing it as a sink for airborne and waterborne plastic particles. The study documents plastic contamination even in remote Tibetan ecosystems and highlights the role of wetlands in trapping microplastics from surrounding catchments.
Current status of microplastic pollution in China’s aquatic environment and its interactions with metal pollutants on aquatic organisms
Researchers reviewed the current state of microplastic pollution in China's rivers, lakes, and coastal waters and how microplastics interact with metal pollutants to affect aquatic organisms. They found that microplastics can absorb metals from the water and that the combined exposure is often more harmful to aquatic life than either pollutant alone. The study highlights that tire wear microplastics are a particularly concerning source because they release high levels of metals, creating compounding risks for freshwater and marine ecosystems.
Microplastics pollution in the South American Pantanal
Researchers sampled microplastics in the affluents and floodplains of the South American Pantanal wetland ecosystem, documenting this emerging threat to one of the world's largest tropical floodplains near urban pollution sources and in remote lowland areas.
Source, fate, toxicity, and remediation of micro-plastic in wetlands: A critical review
Researchers reviewed how microplastics enter, accumulate in, and damage natural wetlands — ecosystems that filter water and support biodiversity — finding that while wetlands may actually trap plastic particles like a sink, the resulting contamination poses serious ecological risks that are still poorly understood.
Interaction and bacterial effects of microplastics pollution on heavy metals in hyporheic sediments of different land-use types in the Beiluo River Basin
Researchers studied how microplastics and heavy metals interact in river sediments across different land-use types in a Chinese river basin. They found that microplastics concentrated more heavily in shallow sediments and that the metals detected on microplastic surfaces were present at much higher levels than in surrounding sediment. The study suggests that microplastics may serve as concentrators and carriers of heavy metal contamination, potentially amplifying pollution risks.
Recent advances towards micro(nano)plastics research in wetland ecosystems: A systematic review on sources, removal, and ecological impacts
Wetland ecosystems act as important sinks for micro- and nanoplastics, which were found to cause ecotoxicological effects on wetland plants, animals, and microbial communities, including shifts in microbial composition relevant to pollutant removal. Micro/nanoplastics exposure also affected conventional pollutant removal efficiency and greenhouse gas emissions from wetland systems.
Microplastics in waters and soils: Occurrence, analytical methods and ecotoxicological effects
Researchers conducted a comprehensive review of microplastic occurrence, analytical methods, and ecotoxicological effects in freshwater and soil environments. The study summarized microplastic abundance across several Chinese freshwater systems and highlighted that while marine microplastic pollution receives the most attention, freshwater and soil contamination deserve greater research focus.
Evaluation of plateau wetland ecological security and its influencing factors in multi-climatic zones: A case study of Yunnan Province
Not a microplastics paper — this study assesses the ecological security of plateau wetlands across Yunnan Province, China using a pressure-state-response model based on remote sensing data, identifying climate and human activity as key threats to these fragile ecosystems.
Research Progress of Soil Pollution and Its Remediation Technology
This review examines the combined soil pollution problem of heavy metals and microplastics in China, summarizing sources, ecological impacts, and remediation technologies including phytoremediation, bioremediation, and physicochemical approaches to restore contaminated agricultural land.