Papers

61,005 results
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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
Article Tier 2

Occurrence of Micro-Plastics in Tigris River Water in Middle of Iraq

This study detected microplastic particles in surface water samples from the Tigris River in Baghdad, Iraq, finding between 27 and 74 particles per sample with polypropylene and polyethylene being the most common types. The results establish a baseline for microplastic contamination in a major Middle Eastern river system that supplies water to millions of people.

2024 IOP Conference Series Earth and Environmental Science 2 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

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

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

Occurrence and characteristics of microplastics in surface water and sediment of Zayandeh-rud river, Iran

This study surveyed microplastic pollution in the Zayandeh-rud River, the most important river in central Iran, sampling both water and sediment at 19 locations. Researchers found microplastics at every site, with fibers being the most common shape and concentrations higher in sediment than in surface water. Areas near urban centers and industrial zones showed the highest contamination levels, pointing to human activity as a major source.

2023 Environmental Health Engineering and Management 15 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

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

Assessment of Microplastic Pollution in Sediments from Khor Al-Zubair, North-West of Arabian Gulf

Researchers collected sediment samples from three sites in Khor Al-Zubair in the northwestern Arabian Gulf, Iraq, and confirmed the presence of microplastic fragments and fibers composed primarily of polyethylene and polypropylene. Concentrations were highest near industrial areas, pointing to sewage discharge and industrial waste as primary sources. This short study provides one of the first data points on microplastic pollution in Iraqi marine waters, a region that has been largely overlooked in global monitoring efforts. Baseline data like this are essential for future regional management strategies.

2025 Egyptian Journal of Aquatic Biology and Fisheries 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

Microplastic pollution in sediments in the urban section of the Qara Su River, Iran

Researchers sampled 15 sites along the Qara Su River in Iran and found microplastics in all sediment samples, with fibers making up 53% of particles and 92% of pieces smaller than 5 millimeters — the first microplastic survey of this river and a sign that urban wastewater treatment is not removing these pollutants effectively.

2022 Applied Water Science 16 citations
Article Tier 2

Exploring the microplastic pollution: Unveiling origins and varieties in coastal sediments and waters of the Bushehr Province, Persian Gulf, Iran

Researchers conducted a comprehensive survey of microplastic pollution in coastal sediments and waters along the Persian Gulf in Iran. They found microplastics at all sampling sites, with the highest concentrations near petrochemical facilities and urban centers, and fibers being the most common type. The study establishes baseline pollution data for the region and links contamination levels to specific human activities.

2023 Marine Pollution Bulletin 27 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 distribution of microplastic contamination in Qara-sou river, Iran: incidence, quantification, and qualification

Researchers surveyed microplastic contamination along a 100 km stretch of the Qara-sou River in Iran, finding average concentrations of approximately 23,666 items per cubic meter, with fibers (78%) and small particles (0.025-1 mm) dominating the pollution profile.

2023 International Journal of Environmental Health Research 6 citations
Article Tier 2

Microplastic Contaminants in the Sediment of the East Coast of Saudi Arabia

Researchers conducted the first measurement of microplastic contamination in sediments along four beaches on Saudi Arabia's east coast, finding 586 microplastic particles with fibers being the dominant shape (96%) and polyethylene terephthalate the most common polymer type, with abundance varying between tidal zones.

2023 Environmental sciences 7 citations
Article Tier 2

Assessment of microplastics in Irish river sediment

Researchers assessed microplastic contamination in sediments from 16 sites along the River Barrow in Ireland, detecting plastics at all sites with fibers as the dominant shape and polyethylene terephthalate as a common polymer, confirming widespread freshwater microplastic pollution in Irish river systems.

2022 Heliyon 32 citations
Article Tier 2

Microplastics in the sediments of small-scale Japanese rivers: Abundance and distribution, characterization, sources-to-sink, and ecological risks

Researchers characterized microplastic pollution in sediments of four small-scale Japanese rivers, finding widespread contamination and identifying polymer types and potential sources, highlighting that even small river systems serve as microplastic transport pathways.

2021 The Science of The Total Environment 109 citations
Article Tier 2

Initial investigation of microplastic pollution in river sediments at Yogyakarta City Indonesia

Researchers conducted an initial investigation of microplastic pollution in river sediments crossing Yogyakarta City in Indonesia, finding microplastics at all sampling sites. Fragment and fiber types dominated, reflecting common plastic pollution sources in this urban environment.

2021 Sustinere Journal of Environment and Sustainability 6 citations
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

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

Microplastics in the Surface Sediment of the main Red River Estuary

Researchers characterized microplastics in surface sediments of the main Red River Estuary, identifying particle types, sizes, and polymer compositions as part of efforts to document microplastic pollution in Asian river estuaries that serve as hotspot regions for plastic transport to marine environments.

2022 VIETNAM JOURNAL OF EARTH SCIENCES 16 citations
Article Tier 2

The occurrence of microplastic contamination in littoral sediments of the Persian Gulf, Iran

Researchers surveyed littoral sediments of the Persian Gulf for microplastics, finding plastic particles across all sampling sites with a variety of polymer types. The study provides early baseline contamination data for a region with major petrochemical and industrial activity.

2017 Environmental Science and Pollution Research 202 citations
Article Tier 2

Investigation of microplastic contamination in the sediments of Noyyal River- Southern India

Researchers documented microplastic contamination across 15 sites in the urban Noyyal River in southern India, finding concentrations up to 6,500 particles per cubic meter in dried sediments, with fragments and fibers in a variety of colors the most common forms.

2022 Journal of Hazardous Materials Advances 34 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