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61,005 resultsShowing papers similar to Seasonal variations of water physico-chemistry, heavy metal concentrations and ecological abundance and biodiversity of fish from two Lagoon streams
ClearOccurrence 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.)
Seasonal dynamics of micro- and nanoplastics and associated pollutants in Aarin River: Insights into abundance and digestion impact
Researchers measured micro- and nanoplastics in Nigeria's Aarin River across two seasons, finding higher particle counts during the rainy season (up to 130 particles per liter in water) alongside elevated levels of polycyclic aromatic hydrocarbons and heavy metals. The data highlight how seasonal rainfall flushes plastics and co-contaminants into West African freshwater systems that communities rely on, yet which remain severely understudied.
Microplastics in carnivorous fish species, water and sediments of a coastal urban lagoon in Nigeria
Researchers investigated microplastic presence in water, sediment, and carnivorous fish species from the Lagos Lagoon in Nigeria for the first time. The study found microplastics across all environmental compartments and in three fish species, suggesting that microplastic contamination is widespread in this coastal urban lagoon ecosystem and may enter local food chains.
Anthropogenic drivers of pollutant presence and composition in first-order streams of the Ona River System, Ibadan, Nigeria
Researchers assessed physicochemical parameters, heavy metals, and microplastic contamination across eight urban rivers in southwestern Nigeria, examining how rapid urbanization drives pollutant loading and shapes contaminant composition in first-order streams of the Ona River system.
Assessment of fishes, sediment and water from some inland rivers across the six geopolitical zones in Nigeria for microplastics
Researchers analyzed fish, sediment, and water samples from inland rivers in Nigeria for microplastic contamination, finding particles across all matrices sampled. The study provides baseline pollution data for a region with limited prior microplastic monitoring.
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.
Microplastics Pollution of Water, Sediment, and Selected Fish Species from Bayelsa State, Nigeria
Researchers sampled water, sediment, and multiple fish species from three communities in Sagbama, Bayelsa State, Nigeria, to characterize microplastic contamination across aquatic compartments. Microplastics were detected in all matrices, with fibers dominating, establishing baseline contamination data for this Niger Delta region where residents rely heavily on local fish for food.
Microplastics Pollution of Water, Sediment, and Selected Fish Species from Bayelsa State, Nigeria
Researchers sampled water, sediment, and multiple fish species from three communities in Sagbama, Bayelsa State, Nigeria, to characterize microplastic contamination across aquatic compartments. Microplastics were detected in all matrices, with fibers dominating, establishing baseline contamination data for this Niger Delta region where residents rely heavily on local fish for food.
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.
Bioaccumulation of Heavy Metals in Pelagic and Benthic Fishes of Ogbese River, Ondo State, South-Western Nigeria
Researchers measured heavy metal concentrations in water, sediments, and fish organs from the Ogbese River in Nigeria. The study found that while fish tissue metal levels were within permissible limits, sediment concentrations of cadmium, chromium, iron, and manganese exceeded safe thresholds, indicating moderate contamination risk that warrants ongoing monitoring.
Levels of heavy metals in water and Nile tilapia fish (Oreochromis niloticus) of Eleyele Lake in Ibadan, Nigeria
This is not a microplastics study; it measures heavy metals in water and Nile tilapia from a Nigerian lake, finding that lead concentrations in fish tissue exceeded WHO and FAO limits even though water concentrations appeared acceptable, raising food safety concerns for local consumers.
Characterisation of Ingested Microplastic Particles and Textile Microfibres in the Gastrointestinal Tract of Demersal Fish from a Peri-Urban Open Access Lagoon in Lagos Nigeria
Researchers characterized microplastic particles and textile microfibres in the gastrointestinal tracts of demersal fish from multiple genera caught in a peri-urban lagoon bordering Lagos, Nigeria. They found evidence of microplastic ingestion across multiple fish species, contributing to the limited but growing body of data on microplastic exposure in West African aquatic food webs.
Abundance and Seasonal Variation Of Microplastics Detected in Edible Fish Sold in Lagos State, Nigeria
This Nigerian study examined microplastic contamination in three commercially sold fish species (catfish, red snapper, and tilapia) across different seasons in Lagos State, finding microplastics in every single fish sampled. Fiber-shaped particles were most common, with higher abundances detected during the rainy season, and polyethylene was the dominant polymer type identified. The findings raise food safety concerns for consumers of seafood in West Africa, where monitoring data on microplastic contamination in fish are scarce.
Detection and occurrence of microplastics in the stomach of commercial fish species from a municipal water supply lake in southwestern Nigeria
Researchers screened and detected microplastics in the stomachs of commonly consumed fish from a Nigerian municipal water supply lake, providing baseline data for a region where such records are scarce and raising concerns about human dietary exposure.
Assessing the impact of anthropogenic stressors on water quality, sediment characteristics and benthic macroinvertebrates community in a Coastal Lagoon, Southwest Nigeria
This Nigerian study assessed the impact of human activities on water quality, sediment, and benthic invertebrate communities in a coastal lagoon near Lagos. The research documents widespread contamination from urban and industrial stressors in a major coastal ecosystem that serves as a fishing and economic resource for local communities.
The Role of Biofilm on Microplastics as A Vector for Heavy Metals in the Waters of Sendang Biru, Malang Regency
Researchers investigated microplastic contamination, biofilm formation, and heavy metal accumulation in waters of Sendang Biru, Malang Regency, Indonesia, collecting 20-liter water samples and six Banyar fish specimens from two stations to examine how biofilms on microplastic surfaces act as vectors for heavy metal transfer to aquatic organisms.
Freshwater insects of different feeding guilds ingest microplastics in two Gulf of Guinea tributaries in Nigeria
Scientists collected freshwater insects from two Nigerian tributaries of the Gulf of Guinea and found microplastics ingested across different feeding guilds, providing rare baseline data on microplastic contamination of African freshwater ecosystems.
Microplastic Presence in Sediment and Water of a Lagoon Bordering the Urban Agglomeration of Lagos, Southwest Nigeria
This study investigated microplastic contamination in water and sediment from a lagoon bordering Lagos, Nigeria, finding plastics present at all sites. The study is the first of its kind in the area and raises concerns about how microplastic exposure affects aquatic organisms and the communities that depend on this water body for food and livelihoods.
Microplastics Pollution in Nigerian Aquatic Ecosystems: Sources, Pathways, Impacts, and Mitigation Strategies. A Review
This review synthesized evidence on microplastic contamination across Nigerian aquatic ecosystems, including rivers, lagoons, seafood, and drinking water. The authors describe complex pollution pathways and impacts on organisms across trophic levels, while highlighting the need for Nigeria-specific research and stronger waste management policies.
Assessment 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.
Assessment of Temporal Variation of Water QualityParameters and Ecotoxic Trace Metals in SouthernNigeria Coastal Water
This paper is not about microplastics; it monitors temporal variation in water quality parameters and trace metal (cadmium, chromium, nickel, lead) concentrations in the Opuroama River and local aquatic organisms in southern Nigeria.
Methods to characterize microplastics: case study on freshwater fishes from a tropical lagoon in Colombia
Fish from Colombia's Luruaco Lagoon contained microplastics with prevalence, abundance, and polymer characteristics analyzed across four sampling events, with principal component analysis linking MP types to feeding ecology and habitat use of the different species.
Water and Sediment Chemistry as Drivers of Macroinvertebrates and Fish Assemblages in Littoral Zones of Subtropical Reservoirs
This paper is not about microplastic pollution. It examines how water chemistry and sediment metal concentrations drive macroinvertebrate and fish communities in the littoral zones of three subtropical reservoirs in South Africa, finding that anthropogenic activities like car washing and wastewater treatment contribute metals to the sediments.
Detection of Microplastic Pollutants and the Wellbeing of Clarias gariepinus (African Catfish) in Jama’are River, Bauchi State, Nigeria
Researchers detected multiple types of microplastics — including polyethylene, polypropylene, and PVC — in water and fish from a Nigerian river, and found that African catfish living there showed signs of tissue damage and altered blood markers, indicating that microplastic contamination is harming freshwater fish health in the region.