Tracking the microplastic accumulation from past to present in the freshwater ecosystems: A case study in Susurluk Basin, Turkey

Almas, Fatma Feisal; Bezirci, Gizem; Çağan, Ali Serhan; Gökdağ, Kerem; Çırak, Tamer; Kankılıç, Gökben Başaran; Paçal, Elif; Tavşanoğlu, Ülkü Nіhan

doi:10.1016/j.chemosphere.2022.135007

Cited by 22 publications

(3 citation statements)

References 80 publications

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“…High water velocity and level make it more difficult for microplastics to travel away from urban areas during the rainy season. Other studies have found much higher concentrations of microplastics in both the surface waters and the sediment waters of different rivers during the rainy season, which supports this hypothesis [14,15]. Based on the results of this study, the concentration of microplastics in the surface water downstream of the Kemena River was significantly higher compared to the concentration of microplastics in surface water upstream and midstream of the river.…”

Section: Abundance Of Microplastics In River Water and Sediment Sampl...supporting

confidence: 87%

Occurrence of Microplastics in Kemena River and Niah River of Sarawak, Malaysia

Karing,

Anggiani,

Cao

et al. 2023

Trop. Environ. Biol. Technol.

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Microplastics in freshwater have been identified as a significant contributor to plastic pollution in marine environments. However, the effect of urbanization on the quantity and spatial dispersion of microplastics in freshwater ecosystems of Sarawak and Malaysia remains unclear. The primary objectives of this study are to investigate the quantity and distribution of microplastics in water and riverbank sediments, as well as to analyze the properties of microplastic particles in the Kemena and Niah rivers. The selection of these rivers was based on the presence of commercial, residential, and industrial areas along their lengths. A total of 24 water and soil sediment samples were collected from three different sites along the Kemena and Niah rivers. The concentration of microplastics in water samples ranged from 60 to 128 items per liter, while sediment samples ranged from 46 to 76 items per liter. The sediment samples also contained microplastics ranging from 21 to 40 and 45 to 125 items per kilogram. Microplastics were observed in various forms, including fibers, films, foam, and fragments, in both water and soil sediment samples. The majority of microplastics were between 0.1 and 1 mm in size, with blue being the most common color observed in river water and transparent in sediment samples. The ATR-FTIR spectrum analysis indicated the presence of four distinct polymers: polyethylene (PE), polystyrene (PS), polycarbonate (PC), and polyethylene terephthalate (PET). This study provides valuable information on the abundance, distribution, chemical composition, and physical properties of microplastics in the Kemena and Niah rivers.

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Section: Abundance Of Microplastics In River Water and Sediment Sampl...supporting

confidence: 87%

Occurrence of Microplastics in Kemena River and Niah River of Sarawak, Malaysia

Karing,

Anggiani,

Cao

et al. 2023

Trop. Environ. Biol. Technol.

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“…The veri ed existence of microplastics in aquatic ecosystems and sh warrants meticulous scrutiny concerning environmental impact, food safety, and human health. While numerous studies have explored microplastics in the Marmara Sea (Almas et al 2022), the Mediterranean Sea (Güven et al 2017), the Black Sea (Eryaşar et al 2021), and the Aegean Sea (Şener and Yabanlı 2023) in Turkey, research on Lake Van, the country's largest lake, remains limited. There is a need to investigate the extent of microplastic exposure in Lake Van's aquatic ecosystem, potential food safety implications arising from this exposure, trophic transfer to humans, and potential health issues resulting from this transfer.…”

Section: Introductionmentioning

confidence: 99%

Microplastic Accumulation in Lake Van Sediment

ONLU,

GOK

2024

Preprint

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The impact of microplastics on ecosystems and living organisms is an issue of increasing concern. In this study, sediment samples collected from 3 different stations in 4 settlements on the shore of Lake Van in October 2021 were analyzed for the presence of 4 different types of microplastics, namely LDPE, PP, PS, and PET. Methods such as sieve filtration, organic matter removal and density separation were used to isolate microplastics in the collected samples. After isolating microplastics from the samples, visible microplastics were detected and photographed in the relevant samples, bacterial density was measured with microbiological analysis, microplastic particles were measured with a sensitive balance, the color and shape of microplastics were examined with a stereomicroscope, and microplastic particles were identified with FTIR spectroscopy. The spectra obtained from the sediment samples were compared with reference peaks in KnowItAll and the Spectroscopy Online virtual library and PS was identified as the predominant polymer type. When microplastic was analysed, it was determined that the predominant microplastic form was white/transparent and the microplastic size was between 3 and 5 mm. As a result of microbiological analyses, the presence of Escherichia coli (6/2 100 cfu/ml) was detected in the water samples of Van1 and Erciş1 lakes, and the highest total coliform bacteria count was found in Erciş2 lake. In this study, information about the presence of microplastics in sediment, which is one of the elements of Lake Van aquatic ecosystem, was obtained.

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“…The Marmara Sea is under the in uence of many pressures such as urban and industrial wastewater, maritime tra c, agricultural and settlement activities on land, and tourism. Recent studies have shown that the Marmara Sea remains polluted, especially due to the increase in heavy metal, microplastics, and radionuclide concentrations (Tan 2021; Baysal and Saygin 2022; Almas et al 2022;Gözel et al 2022). Fishing activities continue intensively in this region.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Content and Risk Assessment in Trachurus trachurus Investigated from the Marmara Sea

Şap

Zöngür

Özcan

2023

Preprint

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Aquaculture is an important nutrient for humans, and their living environment, sea water, must be of high quality. Toxic metals are one of the most important causes of marine pollution and marine organisms can accumulate such compounds in their bodies. It is extremely important to evaluate the health risks of fish, which is the most consumed sea creature by humans, in terms of toxic elements for public health. In this study, some heavy metal concentrations were determined using FAAS in the muscle and liver tissues of Trachurus trachurus species grown in the Marmara Sea, and the carcinogenic and non-carcinogenic risk possibilities related to these heavy metals were evaluated. According to the results of the research, it was seen that there was no relationship between fish weight and length and element content in muscle tissue. Compared with muscle tissue, liver tissue accumulated more metal content. It was determined that all elemental concentrations in muscle tissue were below the permissible limit. In addition, it was observed that these fish species were weak in terms of nutritional elements. The estimated daily intake values of all elements were found to be much lower than the reference doses. The target hazard quotient and hazardous index values for essential and toxic elements were below the limit value. It was decided that daily consumption of these fish does not pose a lifelong carcinogenic and noncarcinogenic health risk. The Pb concentration detected in the liver was observed to exceed the permissible limit. This situation suggests that the Marmara Sea should be examined in terms of Pb pollution.

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Tracking the microplastic accumulation from past to present in the freshwater ecosystems: A case study in Susurluk Basin, Turkey

Cited by 22 publications

References 80 publications

Occurrence of Microplastics in Kemena River and Niah River of Sarawak, Malaysia

Occurrence of Microplastics in Kemena River and Niah River of Sarawak, Malaysia

Microplastic Accumulation in Lake Van Sediment

Heavy Metal Content and Risk Assessment in Trachurus trachurus Investigated from the Marmara Sea

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