Papers

61,005 results
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Article Tier 2

Evaluation of microplastic pollution in a lotic ecosystem and its ecological risk

Researchers measured microplastic contamination in water and sediment of the Tigris River in Iraq across dry and wet seasons, finding high abundances of 3429.2 MPs/m3 in water and 121.2 MPs/kg in sediment. Fiber and fragment morphologies dominated, composed primarily of polyethylene and polypropylene, with ecological risk assessment indicating significant pollution hazard.

2023 Marine Pollution Bulletin 28 citations
Article Tier 2

Evaluation of Microplastic Pollution in Water of Shatt Al-Arab River, Southern of Iraq

Surface water samples were collected monthly from four sites along the Shatt al-Arab River in southern Iraq from October 2023 to March 2024 and analyzed for microplastic contamination using sieves and microscopy. Microplastics were confirmed present across all sites, with fragment morphology and multiple polymer types detected.

2025 Egyptian Journal of Aquatic Biology and Fisheries
Article Tier 2

Microplastic Contamination of Surface Sediment of Euphrates River, Iraq: A Preliminary Study

This preliminary study found microplastics in all surface sediment samples collected along the Euphrates River in Iraq, with fibers being the most abundant type. The findings represent the first documentation of microplastic contamination in this important river system.

2020 Journal of Physics Conference Series 14 citations
Article Tier 2

Partial and Temporal Variations in Concentration of Micro Plastic in Drinking Water of Al-Hilla River

This study measured microplastic concentrations in drinking water from the Al-Hilla River in Iraq, finding contamination across multiple sampling locations and time periods. The presence of microplastics in tap water raises concerns about daily human ingestion through drinking water.

2023 Ecological Engineering & Environmental Technology 2 citations
Article Tier 2

Characteristics, Contamination Levels, and Ecosystem Risk Assessment of Microplastics in Surface Water of a Highly Urbanized River from a Developing Country

Researchers characterized microplastic contamination in an urban river near a megacity in a developing country, finding concentrations of 350 to 660 particles per cubic meter of water. Polyethylene and polypropylene from household and municipal waste were the most common types, and a risk assessment found concerning contamination levels at several sampling sites. The study highlights how rivers in developing nations can serve as major pathways for microplastics to reach the ocean and enter the food chain.

2024 ACS Omega 14 citations
Article Tier 2

Occurrence, quantification and characterisation of microplastics in Godavari River, India

Researchers measured microplastic concentrations in the Godavari River in India, finding an average of 3.9 particles per liter across six sites, with fibers making up over 80% of particles and polypropylene and polyethylene being the most common polymer types. Urban areas had higher concentrations, and the presence of these plastics in a major river system poses risks to agriculture and human health through contaminated water and food sources.

2023 Case Studies in Chemical and Environmental Engineering 35 citations
Article Tier 2

Identification and Quantification of Microplastic Pollution in Water Samples and Four Species of Fish from the Mississippi River

Microplastics were found in water samples and in four fish species from the Mississippi River, the largest North American river draining a densely populated watershed. The findings confirm that one of the world's major river systems is contaminated with microplastics, which are likely entering the Gulf of Mexico.

2020 4 citations
Article Tier 2

Assessment of Microplastic Particles in Tap Water on The Right Side of Mosul City, Iraq

This study assessed microplastic contamination in tap water distributed to homes in Mosul City, Iraq, finding plastic particles in drinking water. The presence of microplastics in tap water raises concerns about daily human exposure through drinking water consumption.

2023 Maǧallaẗ al-handasaẗ al-rāfidayn 2 citations
Article Tier 2

Prevalence of Microplastic Pollution in Freshwater Ecosystem: A Case Study of Thal Canal

Researchers surveyed microplastic contamination in a freshwater ecosystem in a case study region, measuring particle concentrations and types in water and sediment samples across multiple sites. Microplastics were detected at all sampling locations with higher concentrations near urban areas, and fibres and fragments were the dominant particle morphologies found.

2024 Proceedings of the Pakistan Academy of Sciences B Life and Environmental Sciences 1 citations
Article Tier 2

Investigation of microplastic pollution in Torghabeh River sediments, northeast of Iran

Researchers investigated microplastic pollution in sediments of the Torghabeh River in northeast Iran. The study found an average concentration of 8 particles per 100 grams of dry sediment, with polystyrene being the most abundant polymer, and areas with greater human activity showing higher levels of microplastic contamination.

2022 Journal of Contaminant Hydrology 46 citations
Article Tier 2

Assessment of Groundwater Contamination by Microplastic Particles: A Case Study in Selected Areas of Mosul District, Iraq

A study of twelve groundwater wells across urban and rural areas of Mosul, Iraq, found microplastic contamination in all samples, ranging from 18 to 103 particles per liter. Most particles were small (under 1 mm), with fibers and fragments both present, and polymer types including polyethylene and polypropylene identified by infrared spectroscopy. Groundwater is a primary drinking water source for millions of people in arid regions, and finding widespread microplastic contamination at these levels underscores the need for water treatment systems capable of removing plastic particles before consumption.

2026 Journal of Rafidain Environment
Article Tier 2

New Additions to the Sediments of the Tigris River from Al-Dora Bridge to Al-Mada'in for the Period 2015-2024

This study examined sediment dynamics and microplastic additions in a stretch of Iraq's Tigris River, documenting new microplastic inputs from urban and agricultural discharge and characterizing the sediment composition changes resulting from ongoing urban development and climate pressures.

2025 ESTIDAMAA. 3 citations
Article Tier 2

Data on the microplastics contamination in water and sediments along the Haraz River estuary, Iran

This study measured microplastic contamination in water and sediment along the Haraz River estuary in Iran, documenting the types, shapes, and polymer compositions of particles present. The data provide a baseline for understanding plastic pollution in Iranian river systems.

2020 Data in Brief 13 citations
Article Tier 2

The occurrence and abundance of microplastics in surface water of the midstream and downstream of the Cisadane River, Indonesia

Researchers investigated microplastic contamination in the Cisadane River, Indonesia, finding 13 to 113 particles per cubic meter in surface water with higher abundance downstream, dominated by polyethylene, polystyrene, and polypropylene fragments from household and industrial sources.

2021 Chemosphere 101 citations
Article Tier 2

Microplastic Pollution in Typical Subtropical Rivers in Eastern China: A Case Study of the Feiyun River Basin

Researchers systematically studied microplastic pollution in the Feiyun River Basin in eastern China using field sampling and spectroscopic analysis. They found microplastic concentrations ranging from 3.7 to 36.4 items per liter, predominantly small particles and fragments, with polyethylene and polypropylene as the most common polymer types, indicating significant freshwater contamination in this subtropical river system.

2025 Water 1 citations
Article Tier 2

Contamination and characterization of microplastics in different sediments of the river estuaries (the inner Gulf of Thailand)

Researchers measured microplastic contamination in river estuary sediments in the inner Gulf of Thailand, finding widespread contamination at all sites. The study characterizes the types and abundance of microplastics in a highly trafficked coastal region of Southeast Asia.

2019
Article Tier 2

Assessment, characterization, and quantification of microplastics from river sediments

Researchers assessed microplastic contamination in sediments from 14 sites along the Kaveri River in South India, characterizing particle types, sizes, and polymer compositions to quantify the extent of microplastic pollution in this freshwater system.

2022 Chemosphere 86 citations
Article Tier 2

Occurrence, distribution and sources of microplastics in beach sediments of Miri coast, NW Borneo

Researchers characterized microplastic pollution in the surface sediments of 10 European rivers, detecting particles at all sites with concentrations ranging from 14 to 895 particles per kilogram of dry sediment. Urban rivers showed the highest contamination levels.

2022 Chemosphere 19 citations
Article Tier 2

Occurrence and characteristics of microplastics in water and sediment samples along the red river to the gulf of tonkin, vietnam

Researchers surveyed microplastics in water and sediment along Vietnam's Red River from inland areas to the Gulf of Tonkin, documenting the types, sizes, and polymer compositions present. The findings show how a major river system acts as a pathway delivering plastic pollution from a densely populated landscape into coastal marine waters.

2026 Zenodo (CERN European Organization for Nuclear Research)
Article Tier 2

Assessment of microplastics in water and sediment from Megech river, major tributary to Lake Tana

Researchers surveyed microplastic contamination in the Megech River in Ethiopia, finding an average of 0.55 microplastic particles per liter in surface water and 19.39 particles per kilogram in sediment, with higher concentrations near urban areas. This baseline study highlights how growing plastic use in developing nations is reaching even freshwater systems in East Africa.

2025 South African Journal of Chemical Engineering
Article Tier 2

Discovery of microplastics in the Alabama River: Distributions, transport and loads, sources, and relative comparison with world rivers

Researchers conducted the first investigation of microplastic contamination in the Alabama River, finding pollution levels comparable to other affected rivers worldwide. Polyethylene terephthalate was the most common plastic type detected, and the particles appeared to originate from nearby sources rather than traveling long distances. The study suggests that riverbed sediment serves as a major sink for microplastics, and contamination patterns varied by season and location without consistent trends.

2025 Journal of Hazardous Materials 3 citations
Article Tier 2

Microplastic Removal in Water Treatment System: A Study of Baghdad’s Wastewater and Drinking Water Treatment Plants

Researchers analyzed microplastic levels at inlets and outlets of two drinking water plants and two wastewater plants in Baghdad, Iraq, characterizing particles by color, shape, size, and composition to assess treatment efficiency and identify residual contamination in treated water.

2025 IOP Conference Series Earth and Environmental Science
Systematic Review Tier 1

Microplastics as a contaminant in Indian riverine system: a review

This systematic review examines microplastic contamination across India's river systems, documenting the types, sources, and concentrations of plastic particles found in major waterways. The findings are concerning for human health because these rivers provide drinking water and irrigation for hundreds of millions of people, creating widespread potential exposure to microplastics.

2022 Zenodo (CERN European Organization for Nuclear Research)
Article Tier 2

Microplastics in the Euphrates: Assessing contamination in water, sediment, and commercial fish species

Researchers conducted the first integrated assessment of microplastic contamination in water, sediment, and six fish species across 23 sites in the Euphrates River, Turkey. MPs were detected in 52.2% of water samples and 43.5% of sediment samples, with fibers and PET dominant; fish species with benthic feeding behavior had higher microplastic loads.

2025 Environmental Pollution 2 citations