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61,005 resultsShowing papers similar to Characterization of Microplastics from Otammiri River Imo State, Nigeria
ClearAssessment of Microplastic Pollution in Surface Water and Sediments of Otammiri River, Imo State, Nigeria
Researchers assessed microplastic pollution in the surface water and sediments of Otammiri River, characterizing the abundance, morphology, polymer types, and spatial distribution of microplastics to evaluate contamination levels and ecological risks in this Nigerian freshwater system.
Compositional Profiles and Spatial Distribution of Microplastics Across Three Selected Rivers in Rivers State, Nigeria
Researchers investigated microplastic contamination across three rivers in Rivers State, Nigeria, using FTIR and GC-MS to identify and quantify the particles. They found microplastics present in all sampled locations, with polyethylene, polypropylene, and polystyrene among the most common polymers detected. The study provides baseline data on the composition and spatial distribution of microplastic pollution in Nigerian freshwater systems.
Environmental Risk Assessment of Microplastics in Water and Sediments along Ibi Troughs North-East Nigeria
Researchers conducted an environmental risk assessment of microplastics in water and sediments along the Ibi River in northeast Nigeria, using FTIR to identify polymer types and assessing ecological risk scores across five sampling sites.
Microplastics Contamination of Surface Water and Selected Fish Species in Ovia River, Southern Nigeria
Researchers examined microplastic contamination in surface water and two fish species (Notopterus afer and Heterobranchus bidorsalis) from Ovia River in Southern Nigeria, using SEM, FTIR, and EDX to characterize particle size distribution, polymer composition, and elemental contamination. The study provides baseline data on microplastic pollution in a West African river system and documents uptake of plastic particles by commercially important fish species.
Assessment of Microplastic Contamination in Surface Water of River Benue in Makurdi Metropolis, Benue State, Nigeria
Researchers sampled surface water at five sites along the Benue River in Makurdi, Nigeria, and found microplastic contamination at all locations, with concentrations varying depending on proximity to urban and industrial activities such as markets, rice mills, and bridges. FTIR analysis identified the polymer types present, and the work provides baseline contamination data for a major West African river that has received little prior attention. The findings highlight that microplastic pollution in African freshwater systems is real and measurable, and calls for expanded monitoring across the continent.
Microplastics in different water samples (seawater, freshwater, and wastewater): Methodology approach for characterization using micro-FTIR spectroscopy
Researchers developed a standardized methodology for detecting and characterizing small microplastics (10-500 micrometers) in different water types using micro-FTIR spectroscopy. The study tested various sample preparation approaches for seawater, freshwater, and wastewater, establishing reliable protocols for rinsing, digestion, and microplastic collection that can be used to assess treatment plant removal efficiency.
Preliminary investigation of the spatio-seasonal distribution of microplastics in the surface water of River Benue, North Central Nigeria
This study provides the first comprehensive assessment of microplastic pollution in Nigeria's River Benue, collecting surface water samples during both rainy and dry seasons and analyzing them with FTIR spectroscopy. Microplastic abundance was higher during the dry season, with particle sizes of 1.5–3 mm most common — a range that raises particular concern because fish can easily ingest them. Risk indices indicated moderate to severe pollution at multiple sites, correlating with commerce, transportation, and waste disposal activities along the riverbanks. These baseline findings are crucial for developing water management strategies in an understudied African river system.
Assessment of Physicochemical Characteristics, Polymer Identification and Total Coliform Counts in Selected Rivers in Ado-Ekiti, Nigeria
Researchers analyzed microplastics in water samples from a Nigerian river system, characterizing their physicochemical properties, identifying polymer types via spectroscopy, and measuring total hydrocarbon content to assess the contamination burden and associated risks.
Insights Into Microplastics Pollution in Aquatic Ecosystem: a Short Review of Sampling and Analysis Methods
This review summarizes current methods for sampling and analyzing microplastics in rivers and estuaries, including techniques like FTIR and Raman spectroscopy for polymer identification. The authors highlight the need for standardized sampling and analysis methods to ensure that microplastic data across different studies are reliable and comparable.
RETRACTED: Assessment of Microplastics in Water and Sediment of River Benue Troughs, Benue State, Nigeria
This study investigated microplastic presence and ecological risk in the River Benue in Nigeria using FTIR spectroscopy, analyzing water and sediment samples. Microplastics were detected in both matrices at concentrations posing potential ecological risks, providing baseline data for a major African river system that has received limited attention in the global microplastic literature. Note: this paper has since been retracted.
Characterization of Microplastics Residue in Water and Biota of Majidun Estuarines, Lagos Nigeria
Researchers characterized microplastics in surface water and commercially harvested aquatic species from the Majidun River estuary in Lagos, Nigeria, providing the first documented assessment of microplastic pollution in this location. Multiple polymer types were identified in both water and biota samples.
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.
Depth-wise Distribution of Microplastics Around Teluk Lerong Intake, the Mahakam River: Implications for Water Treatment Processes
Researchers assessed the depth-wise distribution, abundance, size, and polymer types of microplastics in the water column of the Mahakam River at the Teluk Lerong intake in Samarinda City, Indonesia, using composite sampling and multi-stage filtration with FTIR analysis. The study found microplastics present across all sampled depth levels, with implications for the treatment processes used by the regional drinking water company sourcing water from this intake.
Sampling and identification of microplastics in groundwater
Researchers presented a comprehensive protocol for sampling microplastics from groundwater boreholes, including a purpose-built filtration system and detailed laboratory procedures using ATR-FTIR spectroscopy to characterize particles by size, shape, color, and polymer type. This record is a duplicate entry for the same groundwater microplastics sampling and identification methodology as paper 5527.
Macrodebris and microplastics pollution in Nigeria: first report on abundance, distribution and composition
Researchers conducted the first assessment of macrodebris and microplastics in five rivers in southeastern Nigeria, finding plastics as the dominant macrodebris type at 59% and documenting small microplastic particles as small as 11 micrometers across all sites.
Concentration, characterization, and risk assessment of microplastics in two main rivers in Birnin Kebbi, Nigeria
Researchers assessed microplastic contamination in two major rivers in Birnin Kebbi, Nigeria, that serve as sources for drinking water, fishing, and farming. Significant concentrations of microplastics were detected in both rivers, predominantly fibers and fragments composed of polyamide and polyethylene, with pollution load indices exceeding safe thresholds and indicating moderate to high ecological risk.
Occurrence and Health Implications of Heavy Metals in Microplastics from Otuoke Surface Waters
Microplastics collected from surface waters in Otuoke, Nigeria were analyzed for adsorbed heavy metals, with health risk assessments indicating that consumption of contaminated aquatic organisms could pose risks to local populations from metal-laden plastic particles.
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.
Microplastics in sediment samples from the mouth of the Amazon River
Researchers detected and characterized microplastics in sediment samples from the mouth of the Amazon River, collecting ten samples across the North and South channels in October 2021 and analyzing them with micro-FTIR and micro-Raman spectroscopy. They found microplastic concentrations ranging from 99 to 894 particles per 100 g dry weight sediment, with considerable variation in morphological dimensions and chemical composition between sampling locations.
Presence and Abundance of Microplastics in Benthic Organisms from Some Niger Delta, Nigeria Coastal Rivers
Researchers investigated the presence and abundance of microplastics in benthic organisms collected from coastal rivers in the Niger Delta region of Nigeria, documenting contamination levels in organisms from these ecologically significant waterways.
Karakteristik Mikroplastik Di Perairan Pulau Tengah, Karimunjawa
Researchers investigated microplastic characteristics at Pulau Tengah in the Karimunjawa waters of Indonesia, sampling at four stations using plankton nets and analyzing particle abundance, morphology under stereo microscopy, and polymer type via FTIR spectroscopy to characterize contamination in this tropical marine environment.
Comparison of μ-ATR-FTIR spectroscopy and py-GCMS as identification tools for microplastic particles and fibers isolated from river sediments
Researchers compared two identification methods — micro-ATR-FTIR spectroscopy and pyrolysis-GC-MS — for characterizing microplastics extracted from river sediments, finding that the methods generally agreed on dominant polymers but differed in sensitivity to certain types. The comparison provides practical guidance for choosing analytical methods in freshwater microplastic monitoring programs.
Occurrence and Health Implications of Heavy Metals in Microplastics from Otuoke Surface Waters
This study investigated the occurrence of heavy metals associated with microplastics in surface waters in Otuoke, Nigeria, finding that MPs adsorb and concentrate toxic metals and may serve as vectors for metal exposure in local communities consuming fish. (Duplicate record of ID 11006.)
Characterization of Microplastics in the Sediment of Azuabie and Eagle Island Creeks, Rivers State, Niger Delta
Researchers characterized microplastics in sediment samples from Azuabie and Eagle Island Creeks in Rivers State, Nigeria (Niger Delta), identifying microplastic abundance, morphology, color, and polymer types in a region where these particles can accumulate in fish tissues, transport pathogens, and concentrate toxic pollutants in the marine environment.