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61,005 resultsShowing papers similar to Plastics in surface water of southern coastal belt of Sri Lanka (Northern Indian Ocean): Distribution and characterization by FTIR
ClearEvidence of microplastics pollution in coastal beaches and waters in southern Sri Lanka
Researchers found microplastic pollution along 91 km of coastline in southern Sri Lanka, with 60% of beach sand sites and 70% of surface water sites testing positive, characterizing the polymers, shapes, and colors present across the sampled coastal environments.
Characterization of plastic debris from surface waters of the eastern Arabian Sea–Indian Ocean
Researchers characterized floating plastic debris from surface waters of the eastern Arabian Sea, finding that the microplastic size fraction (0.5-5 mm) was most prevalent at over 50% of total debris, with ATR-FTIR analysis identifying polyethylene and polypropylene as dominant polymer types. The findings document widespread plastic contamination in a poorly studied region of the Indian Ocean.
Quantification and morphological characterization of plastic litter (0.30–100 mm) in surface waters of off Colombo, west coast of Sri Lanka
Surface water off Colombo, Sri Lanka, contained an average of 140 plastic items per square meter, with 99.6% classified as small microplastics under 1 mm in size. Filament-shaped plastics dominated and concentrations were highest near the most populated coastal districts, reflecting urban plastic pollution inputs.
Water quality and floating microplastics pollution along Southern to Northwestern Coast, Sri Lanka
Researchers surveyed microplastic levels and water quality at 12 coastal sites along Sri Lanka's western and southern coast, finding microplastics present at all locations with fibers being the dominant form. The study also found correlations between microplastic abundance and certain water quality parameters, suggesting that areas with poorer water quality tended to have higher plastic loads. The research adds to growing evidence that South Asian coastal waters are significantly contaminated with microplastics, with potential implications for marine food webs and fishing communities.
Characterization and distribution of microplastics and plastic debris along Silver Beach, Southern India
Researchers examined 28 sediment samples along Silver Beach in Southern India for microplastic and plastic debris contamination, using FT-IR spectroscopy to characterize polymer types and finding predominantly white-colored (44%) and irregularly-shaped (82%) plastics in the study area.
Sampling and Analysis of Microplastics in the Coastal Environments of Sri Lanka: Estuaries of the Kelani River to Mahaoya
Microplastics were found in both beach sediments and coastal seawater along 42 kilometers of Sri Lanka's western coastline, with polyethylene, polypropylene, and polystyrene being the most common types. The results document significant plastic contamination along the coast of a densely populated South Asian nation, raising concerns about exposure for coastal communities and marine life in the Indian Ocean region.
An Integrated Assessment of Microplastic Pollution in Coastal Surface Water and Sediment of Japan
Researchers conducted a comprehensive survey of microplastic pollution in surface water and sediment at 15 coastal locations across Japan, from Hokkaido to Okinawa. They extracted over 53,000 suspected microplastic particles and identified the most common polymers using FTIR spectroscopy. The study provides an integrated baseline dataset for understanding the extent and distribution of microplastic contamination along Japanese coastlines.
Microplastic pollution in Kolavai Lake, Tamil Nadu, India: Quantification of plankton-sized microplastics in the surface water of lake
Researchers surveyed Kolavai Lake in Tamil Nadu, India, and found microplastics at an average of 6.1 particles per liter across the lake's surface water, with higher concentrations near urban and southern zones. The study used FTIR spectroscopy to confirm the chemical identity of particles and examined how microplastic abundance compares to zooplankton density, finding that microplastics were present at levels that could disrupt plankton feeding. These results highlight how even inland freshwater lakes in India are heavily contaminated, with implications for aquatic food chains and the communities that depend on this water.
Analysis of Microplastic at Sea Water and Sediment in the Pasaran Island Bay Using FT-IR
Researchers analysed microplastic particle counts, morphologies, and polymer types in seawater and sediment samples collected from four stations around Pasaran Island Bay using FT-IR spectroscopy. Extraction protocols used 70% ethanol, hydrogen peroxide, and sodium chloride for seawater samples and FeSO4, NaCl, and H2O2 for sediments, characterising the nature and extent of microplastic pollution at this Indonesian marine site.
Microplásticos En Tres Playas Del Corredor Turístico Del Norte, Piura, Perú
Researchers sampled sediments from three beach zones along northern Peru's tourist corridor in February 2024 and characterized microplastic abundance, morphology, and polymer types using FTIR analysis. Microplastics were detected across all sampling zones, with fragments and fibers dominating and polyethylene as the most common polymer type.
Sampling and Analysis of Microplastics in the Coastal Environments of Sri Lanka: Estuaries of Kelani River to Mahaoya
Microplastic abundance and types were quantified in beach sediments and seawater across nine sites along 42 km of Sri Lanka's western coast, documenting widespread contamination in estuarine and coastal environments.
Microplastic in the surface waters of the Ross Sea (Antarctica): Occurrence, distribution and characterization by FTIR
Researchers conducted the first survey of microplastic contamination in Antarctic Ross Sea surface waters, finding low concentrations averaging 0.17 particles per cubic meter and dominated by polyethylene and polypropylene fragments, using a non-invasive FTIR imaging method on dried filters that allows subsequent analysis of the same sample for other contaminants.
Identification and Characterization of Microplastics on the Surface Water in Laguna de Bay, Philippines
Researchers collected and characterized 890 microplastic particles from surface water at three sites in Laguna de Bay, the largest lake in the Philippines, using visual microscopy and FTIR analysis. Fibres dominated the samples, photodegradation was evident from colour changes, and polyethylene was the most common polymer type identified.
Screening for microplastics in marine fish of Thailand: the accumulation of microplastics in the gastrointestinal tract of different foraging preferences
Researchers investigated microplastic ingestion in 492 marine fish (361 demersal and 131 pelagic) from Thailand, finding no significant difference in uptake between the two foraging types, with polyamide fibers dominating in both groups. FT-IR analysis confirmed polyamide as the most common polymer and red-colored fibers as the most abundant morphology, providing the first such characterization for Thai marine fish.
Distribution of Microplastics along Mai Khao Coastline, Phuket
Researchers sampled microplastics from the intertidal zone of Mai Khao beach in Phuket, Thailand, during two seasonal sampling events, separating particles into two size classes and analyzing polymer composition using micro-FTIR. They found that fibers dominated at 94.5%, PET was the predominant polymer at 94.7%, and abundances at this site were higher than at other west coast Phuket locations, indicating elevated local anthropogenic input.
Microplastics monitoring in different environments: separation, physicochemical characterization, and quantification
Researchers systematically monitored microplastic contamination across multiple environments including a wastewater treatment plant, surrounding water bodies, and soils near plastic factories, characterizing shape, size, color, and polymer composition via microscopy and FTIR spectroscopy. They found fragments and fibers to be the most common microplastic shapes in water environments and documented simultaneous contamination across all sampled matrices.
Analysis of Microplastics in Synthetic Fibers Through FT-IR Microscope
This study used FTIR microscopy to identify and characterize microplastics derived from synthetic textile fibers in environmental samples. Synthetic fiber microplastics are among the most common types found in the ocean, and FTIR analysis is essential for confirming their identity and polymer composition.
Microplastic pollution status in the coral reef ecosystems on the Southern and Western coasts of Sri Lanka during the Southwest monsoon
Researchers investigated microplastic contamination in six coral reef ecosystems along Sri Lanka's southern and western coasts during monsoon season. They found that small blue fibers were the dominant type, and that microplastic levels in corals were strongly linked to concentrations in surrounding water and sediment. The study suggests that while current contamination levels are relatively low, microplastics may still threaten coral health and warrant further monitoring.
Assessment of Microplastic Pollution in Coastal Belt of Chennai, Tamilnadu
Researchers investigated microplastic contamination in the Adyar and Coovum river estuaries along the Chennai coastline in India. Using FTIR spectroscopy and X-ray diffraction analysis, they confirmed the presence of microplastics in both water and sediment samples. The study adds to the growing evidence that urban coastal areas in developing regions face significant microplastic pollution challenges.
Stereomicroscopic and Fourier Transform Infrared (FTIR) Spectroscopic Characterization of the Abundance, Distribution and Composition of Microplastics in the Beaches of Qingdao, China
Microplastics were found on two beaches in Qingdao, China at varying concentrations, with fibers as the most common type. The study used FTIR spectroscopy to identify polymer types including polyester and polypropylene, contributing to the global picture of beach microplastic contamination.
Plastic debris in the Mediterranean Sea: Types, occurrence and distribution along Adriatic shorelines
Researchers investigated plastic debris in sediments from five beaches on the Northern Adriatic coast, finding a mean density of 12.1 items per kg dry weight and characterising debris types using FT-IR spectroscopy in the first such assessment for this region.
Seasonal distribution of microplastics in surface waters of the Northern Indian Ocean
Researchers documented seasonal distribution of microplastics in Northern Indian Ocean surface waters across three monsoon periods, finding polyethylene and polypropylene dominated at 83%, with fibers accounting for 86% of all particles.
A study of microplastics in water and sediments of Lakes around Dhaka city
Researchers investigated microplastic presence, distribution, and characterization in water and sediment samples from four urban lakes in Dhaka City, Bangladesh (Dhanmondi, Hatirjheel, Gulshan, and Banani), characterizing particles by size, shape, and polymer type via visual identification and FTIR spectroscopy, contributing freshwater microplastic data from an underrepresented South Asian urban setting.
A Case Study in Kovalam Coastal Village to Identify Microplastics Using FTIR and Mangroves by Ndvi Analysis
Researchers investigated microplastic contamination at Kovalam Beach, a coastal fishing village on India's Coromandel Coast, using FTIR spectroscopy to identify and characterize plastic polymer types in beach and backwater samples, and combined this with NDVI analysis to assess the health of adjacent mangrove ecosystems under pressure from coastal development.