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61,005 resultsShowing papers similar to Distribution, Diversity, and Ecological Risks of Microplastics in Mangrove Ecosystems of a Southeastern Chinese Estuary
ClearCharacteristics and distribution of microplastics in the coastal mangrove sediments of China
A survey of mangrove sediments along China's coast found microplastics were ubiquitous, with concentrations and polymer types varying by proximity to human activity and hydrological conditions. The study shows that mangrove forests, which provide critical coastal ecosystem services, are accumulating significant quantities of plastic pollution.
Abundance and characteristics of microplastics in the mangrove sediment of the semi-enclosed Maowei Sea of the south China sea: New implications for location, rhizosphere, and sediment compositions
Microplastics were widespread in mangrove sediments of the semi-enclosed Maowei Sea in southern China, with concentrations influenced by location within the mangrove, proximity to roots, and sediment composition. The study provides new insight into how mangrove ecosystems trap and accumulate microplastics, raising concerns for the health of these ecologically important coastal habitats.
The distribution, characteristics and ecological risks of microplastics in the mangroves of Southern China
Microplastics were found to be widespread in mangrove sediments across Southern China, with higher concentrations in areas closer to urban development and aquaculture. The study highlights mangroves as accumulation zones for microplastic pollution, which could threaten these ecologically important coastal ecosystems.
[Occurrence Characteristics of Microplastics in Mangrove Sediments in the Jiulong River Estuary and the Association with Heavy Metals].
Researchers measured microplastic abundance and types in mangrove wetland sediments at the Jiulong River estuary in China, also examining associations with heavy metals. The findings show that mangrove sediments accumulate both microplastics and metals, raising concerns for the health of these coastal ecosystems.
Characteristics, influencing factors, and ecological risks of microplastics in the north branch tidal marshes of the Yangtze River estuary
Researchers surveyed microplastic contamination in tidal marshes at the Yangtze River estuary and found an average of about 507 particles per kilogram of sediment. The distribution was strongly influenced by salinity and vegetation type, with freshwater areas dominated by reeds containing more microplastics than saltwater zones. The study highlights how seawater intrusion and plant communities shape where microplastics accumulate in these ecologically sensitive coastal wetlands.
Distribution and diversity of microplastics along the aquatic food web in the largest mangrove reserve of China
Researchers surveyed microplastic contamination across the food web in China's largest natural mangrove reserve, examining fish, crabs, shrimp, and bivalves. They found that fish contained the most microplastics, and that organisms feeding indiscriminately accumulated more plastic particles than selective feeders. The study introduces a microplastic diversity index that reveals surprisingly complex contamination patterns across different species and trophic levels in mangrove ecosystems.
Characterization, source, and retention of microplastic in sandy beaches and mangrove wetlands of the Qinzhou Bay, China
Researchers characterized microplastics in sediments from both sandy beaches and mangrove wetlands in Qinzhou Bay, southern China, finding higher abundances in mangrove sediments than beach sediments due to the trapping function of root systems. The study demonstrates that mangroves act as effective sinks for microplastic pollution in coastal zones.
Distribution, characteristics, and human exposure to microplastics in mangroves within the Guangdong-Hong Kong-Macao Greater Bay Area
Researchers mapped microplastic distribution across three mangroves in the Greater Bay Area of southern China, finding concentrations up to 1,600 particles per kilogram with higher levels at forest fringes, and assessed potential human exposure pathways.
Abundance and distribution of microplastics in tropical estuarine mangrove areas around Penang, Malaysia
This study documented microplastic pollution in tropical mangrove estuaries around Penang, Malaysia, finding thousands of plastic particles in both water and sediment samples. Concentrations were particularly high near the more urbanized Seberang Perai area, where sediment contained up to 4,000 particles per kilogram. The research highlights that tropical mangroves, which serve as important nursery habitats for marine life, are accumulating significant amounts of microplastic pollution.
Linking human activity to spatial accumulation of microplastics along mangrove coasts
Researchers sampled 50 locations along the largest mangrove coast in China to quantify how human activities drive microplastic accumulation in mangrove sediments. They found that densely populated areas and tourism hotspots contributed large white foam particles, while fishing areas produced smaller fragment-type microplastics. The study provides quantitative evidence linking specific human activities to distinct patterns of microplastic contamination in mangrove ecosystems.
How mangrove plants affect microplastic distribution in sediments of coastal wetlands: Case study in Shenzhen Bay, South China
The effect of different mangrove plant species on microplastic distribution in coastal wetland sediments was investigated, finding that plant species significantly influenced where microplastics accumulated. The study suggests that mangrove root and canopy structures create preferential zones for microplastic retention in coastal sediments.
Microplastics in sediments of the Changjiang Estuary, China
Researchers sampled sediments in the Changjiang Estuary and found microplastics throughout, with concentrations and polymer types reflecting inputs from the Yangtze River and coastal human activities.
Revealing Microplastic Contamination in Mangrove Sediments from Setiu Wetlands, Malaysia
Researchers found 2,292 microplastic particles per kilogram of sediment in the mangrove wetlands of Setiu, Malaysia, with over 80% being tiny fibers likely from fishing gear and packaging. Areas near aquaculture operations had the highest contamination levels, and the microplastic surfaces showed signs of environmental degradation that could make them more toxic. Mangrove ecosystems act as natural traps for microplastics, concentrating pollution in habitats that are vital for fisheries and coastal protection.
Depth Profiles of Microplastic in Sediment Cores in the Mangrove Area of Kuala Gula Mangrove, Malaysia
Researchers profiled microplastic abundance with depth in sediment cores from the Kuala Gula Mangrove in Malaysia, finding 25-130 items per kg dry weight and highest concentrations near rivermouth sites, demonstrating that mangrove sediments are significant microplastic sinks.
Occurrenceand characteristics of microplastics in benthic species from mangrove wetlands of Hainan, South China
Researchers found microplastics in 10 species of benthic organisms — including crabs, bivalves, and snails — across seven mangrove areas in Hainan, China, confirming that mangrove ecosystems and the organisms that inhabit them are significantly contaminated by microplastic pollution.
Microplastics in Singapore’s coastal mangrove ecosystems
Researchers sampled coastal mangrove ecosystems in Singapore and found microplastics throughout, demonstrating that mangrove habitats accumulate plastic pollution and raising concerns for the organisms that depend on these ecologically important coastal forests.
Vertical distribution, accumulation, and characteristics of microplastics in mangrove sediment in China
Sediment cores up to 100 cm deep were collected from six mangrove forests in China to document the vertical distribution and historical record of microplastic accumulation. The Futian mangrove in Shenzhen had the highest microplastic abundance up to 3,123 particles per kilogram, and the earliest plastic-bearing sediment layers date back to China's plastic industry development in the 1980s.
Multidimensional Assessment of Microplastic Pollution in Mangrove Wetlands: Driving Mechanisms, Carbon Contribution, and Ecological Risk
Scientists found tiny plastic particles called microplastics throughout mangrove wetlands in China, with the highest levels in areas used for fishing and fish farming. These plastic particles are building up in the sediment and water, creating pollution hotspots that pose moderate ecological risks to these important coastal ecosystems. This matters because mangroves help protect coastlines and support marine life that humans depend on for food, so plastic pollution in these areas could ultimately affect our food supply and coastal protection.
Spatial retention, absorption, transport, and enrichment of microplastics in mangrove sediment complex system
This study investigated how microplastics are distributed and transported within mangrove sediments in a Chinese coastal wetland. The researchers found that mangrove roots and sediment layers trap microplastics, but the particles can migrate deeper into the soil over time through water movement and biological activity. Since mangroves serve as nurseries for many fish species, microplastic accumulation in these ecosystems could affect marine food chains and ultimately human seafood consumption.
Microplastics in mangroves with special reference to Asia: Occurrence, distribution, bioaccumulation and remediation options
This review examines microplastic contamination in Asian mangrove ecosystems, finding higher pollution levels near fishing, tourism, and industrial areas. Organisms throughout the mangrove food web, from shellfish to fish, accumulate microplastics based on their feeding habits and habitat. While mangrove plants can trap some microplastics in their roots, the widespread contamination of these coastal ecosystems raises concerns about the safety of seafood harvested from mangrove areas for human consumption.
Vertical distribution of microplastics in mangrove sediment in a tropical estuarine region.
Researchers characterized vertical microplastic distribution in sediment cores from mangrove fringe sites in the Piraque-Acu and Piraque-Mirim estuary in eastern Brazil, finding concentrations ranging from 80 to 960 items per kg dry weight using a saline flotation and vacuum filtration protocol.
Vertical distribution of microplastics in mangrove sediment in a tropical estuarine region.
Researchers characterized vertical microplastic distribution in sediment cores from mangrove fringe sites in the Piraque-Acu and Piraque-Mirim estuary in eastern Brazil, finding concentrations ranging from 80 to 960 items per kg dry weight using a saline flotation and vacuum filtration protocol.
Riverine microplastic pollution matters: A case study in the Zhangjiang River of Southeastern China
Researchers conducted the first survey of microplastic pollution in the Zhangjiang River in southeastern China, finding concentrations ranging from 50 to 725 particles per cubic meter. Polypropylene and polyethylene were the dominant polymer types, accounting for about 75% of all particles, with fragments being the most common shape. The study establishes baseline data on riverine microplastic pollution in this watershed and its potential role in transporting plastics to coastal waters.
Microplastic pollution and quantitative source apportionment in the Jiangsu coastal area, China
Researchers investigated microplastic pollution in the Jiangsu coastal area of China, finding average surface water concentrations of 0.10 items/m and sediment concentrations of 0.19 items/g, with higher abundances nearshore and in southern zones, and quantified shipping, fishing, and terrestrial runoff as major sources.