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61,005 resultsShowing papers similar to Monitoring of micro-plastics: a case study of shilaoren beach, Qingdao, China
ClearOccurrence and distribution of microplastics on recreational beaches of Haichow Bay, China
Microplastic occurrence and distribution were examined on recreational beaches of Haichow Bay, China, a heavily visited coastal area. The study found microplastics throughout the beach environment with patterns linked to beach use intensity, wave energy, and sediment type, establishing contamination data for a tourist-frequented coastline.
Analysis of the Current Situation of Marine Garbage and Microplastic Pollution in Typical Coastal Areas of Qingdao
Researchers investigated coastal marine debris and microplastic pollution at two beaches in Qingdao, China, examining the types, sources, components, and spatiotemporal distribution through field surveys, sample analysis, and component identification. The study proposed management responses including strengthened public education, stricter monitoring measures, and promotion of technological innovation and international cooperation.
The seasonal distribution characteristics of microplastics on bathing beaches along the coast of Qingdao, China
Researchers surveyed microplastic pollution at six bathing beaches along the coast of Qingdao, China, across winter and summer seasons. Microplastic abundance in both seawater and sediment was significantly higher in summer, and concentrations increased from east to west, consistent with coastal current patterns. The study suggests that human recreational activity and urbanization contribute to higher microplastic levels at these popular beach destinations.
Microplastic Contamination on the Beaches of South China
Researchers surveyed microplastic contamination across 14 beaches along the South China coast, finding microplastics ubiquitously present in sandy sediments, predominantly as small fragments under 1 mm, with distribution patterns linked to coastal urbanization and ocean current dynamics.
Microplastics Pollution and Their Potential Impact in Marine Systems: A Case Study in Shandong Peninsula, China
Researchers surveyed microplastic pollution in marine environments around China's Shandong Peninsula, documenting contamination levels and potential impacts on the region's important fishing, aquaculture, and tourism industries.
[Pollution Characteristics of Microplastics in Sediments of Xiamen Bay Beach].
Researchers collected layered sediment samples (0-30 cm depth) at high, mid, and low tide lines across five beaches in Xiamen Bay, China, characterising the horizontal and vertical distribution, abundance, and pollution characteristics of microplastics across 45 sediment samples.
Spatiotemporal variations of microplastics and influencing factor analysis in coastal seawater of Qingdao, China
Researchers surveyed microplastic pollution in the coastal waters of Qingdao, China, and found average concentrations of 293 to 412 particles per cubic meter, with higher levels in summer. The distribution pattern showed increasing concentrations from east to west, influenced by ocean currents, urban runoff, and tourism activity. The study provides a detailed picture of how human activity and environmental factors shape microplastic pollution patterns along a major coastal city.
A review of microplastic pollution in seawater, sediments and organisms of the Chinese coastal and marginal seas
This review compiled microplastic abundance and characteristics data from seawater, sediments, and marine organisms across China's coastal and marginal seas, finding widespread contamination linked to China's extensive plastic production and mismanaged waste streams.
Spatial Patterns of Microplastics in Surface Seawater, Sediment, and Sand Along Qingdao Coastal Environment
This study examined microplastic distribution across seawater, sediment, and beach sand at 10 zones around Qingdao, China, finding concentration patterns strongly associated with the type of human activity at each site. Abandoned aquafarms and harbors showed the highest contamination, and chlorinated polyethylene fragments dominated all environmental compartments.
Assessment on the pollution level and risk of microplastics on bathing beaches: a case study of Liandao, China
Researchers assessed microplastic pollution levels on bathing beaches in Liandao, China, finding an average abundance of about 135 items per kilogram of sediment. Using pollution and hazard indices, the study determined that current microplastic contamination levels pose a low health risk, though the authors note that increasing population and consumption will likely raise plastic waste levels over time.
Impact of microplastic pollution on coastal ecosystems using comprehensive beach quality indices
This study applied three beach quality indices to assess microplastic pollution in Chinese beach sediments, finding that all sampled beaches rated "very high" pollution and "bad" environmental status. The work provides a standardized framework for quantifying microplastic impact on beach environments, which is useful for guiding cleanup priorities and policy decisions.
Microplastic pollution in sediments from the Bohai Sea and the Yellow Sea, China
Researchers sampled sediments from the Bohai Sea and Yellow Sea and found widespread microplastic contamination, with fibers and fragments as the dominant forms, and higher concentrations near river mouths and urban coastlines.
Distribution and environmental risk assessment of microplastics in continental shelf sediments in the southern East China Sea: A high-spatial-resolution survey
Researchers conducted a high-spatial-resolution survey of microplastics in surface sediments across the southern East China Sea continental shelf, finding omnipresent contamination dominated by polyethylene fibers and fragments, with concentrations elevated near urban coastal areas.
Microplastic Pollution and Its Potential Correlation with Environmental Factors in Daya Bay, South China Sea
Researchers surveyed 26 sites in Daya Bay, China, finding microplastics in both surface water (up to ~14 items/L) and sediment (up to ~823 items/kg), with fibers and PET the dominant types. The study also identified correlations between microplastic abundance and environmental factors, highlighting how coastal waters near urbanized areas accumulate significant plastic contamination that threatens marine life.
Distribution characteristics of microplastics in the seawater and sediment: A case study in Jiaozhou Bay, China
Researchers surveyed microplastic pollution in the seawater and sediments of Jiaozhou Bay, a semi-enclosed bay in China heavily impacted by human activity. They found microplastic concentrations of 20 to 120 items per cubic meter in seawater and 7 to 25 items per kilogram in sediment, with fibers being the dominant shape and PET the most common polymer. The study found positive correlations between microplastic levels in water and sediment, and higher concentrations near areas with residual ocean currents.
[Microplastic Pollution of the Beaches in Xiamen Bay, China].
Microplastics were found across beaches in Xiamen Bay, China, with fibers and fragments being most common and concentrations higher near urban and industrial areas. The findings add to growing evidence that microplastic contamination is widespread along China's heavily populated coastline.
Microplastic pollution in North Yellow Sea, China: Observations on occurrence, distribution and identification
Researchers surveyed microplastic pollution across the North Yellow Sea, documenting their occurrence, distribution, and characteristics, and finding widespread contamination with higher concentrations in coastal areas and near river inputs.
Quantification and polymer characterization of sediment microplastics along the Golden beach, Puri, India
Microplastics were found in beach sediments at one of India's most popular tourist beaches in Puri, with an average of 731 particles per kilogram of sediment. The presence of multiple polymer types, including polyethylene and polystyrene, reflects the diverse sources of plastic pollution at heavily visited coastal sites.
RETRACTED: Microplastic pollution in intertidal sediments along the coastline of China
Note: This paper has been retracted. Prior to retraction, it reported measuring microplastics in intertidal sediments at 13 coastal sites in China, finding widespread contamination with fragments and fibers. The retraction status means the specific data should not be relied upon.
Distribution and characteristics of microplastics in sediment at representative dredged material ocean dumping sites, China
This study investigated microplastic contamination in sediments at eight ocean dumping sites used for dredged material in China, finding an average abundance of about 113 particles per kilogram of dry sediment. Dumping activities appeared to be the dominant source of microplastics at only the most offshore site, while nearshore sites were influenced more by other inputs. The results highlight ocean dumping as an underappreciated pathway for introducing microplastics into coastal marine sediments.
Two-dimensional distribution and abundance of micro- and mesoplastic pollution in the surface sediment of Xialiao Beach, New Taipei City, Taiwan
Researchers systematically mapped microplastic and mesoplastic pollution across Xialiao Beach in Taiwan, recovering 1,939 particles from 80 samples and finding that the backshore contained significantly more plastic than intertidal zones, with extrapolation suggesting approximately 6.8 million particles (≥1 mm) across the beach surface.
Microplastic pollution in the surface sediments collected from Sishili Bay, North Yellow Sea, China
Researchers investigated microplastic pollution in surface sediments from 28 stations in Sishili Bay in the North Yellow Sea, China, finding an average abundance of 499.76 items per kilogram dry weight with fibers dominating and eight polymer types identified including rayon and polyester.
Ubiquity of microplastics in coastal seafloor sediments
Researchers applied a novel method to quantify microplastic concentrations in seafloor sediments from 42 coastal sites across southeastern Australia. They found microplastics in all samples at an average concentration of 3.4 particles per milliliter of sediment, predominantly as filaments. The study demonstrates that microplastic contamination of coastal seafloor sediments is ubiquitous and that hydrological and sediment properties influence deposition patterns.
Abundance, composition, and distribution of microplastics larger than 20 μm in sand beaches of South Korea
A national survey of 20 sandy beaches along the South Korean coast found microplastics at all locations, with fragments as the dominant type and concentrations varying by beach exposure and proximity to population centers. The study establishes a national baseline for beach microplastic contamination to support monitoring and management policy in South Korea.