Delineation of radionuclide bioaccumulation in golden horn, Istanbul, using bioindicator mussel passive monitoring and transplantation

The Golden Horn estuary in the centre of Istanbul, has been exposed to many pollutants from domestic and industrial waste effluent during the second half of the 20th century. In this study, Mediterranean mussel (Mytilus galloprovincialis) was seasonally collected from eight sites in the Golden Horn estuary, Istanbul to determine the bioaccumulation of 137Cs, 40K, 210Po, and 210Pb between 2013 and 2014. The averages activity concentrations of 137Cs, 40K, 210Po, and 210Pb were determined to be 1.36, 463, 91.64, and 11.51 Bqkg-1 at dry weight, respectively. Mussel samples were also transplanted between the middle and lower part of the estuary to investigate variations in the levels of radionuclides over the course of the year. Higher concentrations were observed except for 210Po, compared with their initial concentrations in the transplanted mussels. Besides, the average and range annual effective ingestion dose values were calculated to be 11.96 and 2.23-34.45 ?Sv due to 210Po through consumption of mussels from the Golden Horn. According to obtained dose levels, there is no health risk in terms of 210Po consumption of mussels.

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Occurence and Variability of Domoic Acid in Mussel (Mytilus galloprovincialis) Samples from the Golden Horn Estuary, Sea of Marmara (Turkey)

Bulletin of Environmental Contamination and Toxicology ◽

10.1007/s00128-020-03082-7 ◽

2021 ◽

Author(s):

Fuat Dursun

Keyword(s):

Domoic Acid ◽

Mytilus Galloprovincialis ◽

Sea Of Marmara ◽

Golden Horn ◽

Golden Horn Estuary

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Trace elements concentrations (Zn, Cu, Pb, Cd, As and Hg) in the Mediterranean mussel (Mytilus galloprovincialis) and evaluation of mussel quality and possible human health risk from cultivated and wild sites of the southeastern Adriatic Sea, Montenegro

Journal of the Serbian Chemical Society ◽

10.2298/jsc110420095s ◽

2011 ◽

Vol 76 (12) ◽

pp. 1725-1737 ◽

Cited By ~ 23

Author(s):

Slavka Stankovic ◽

Mihajlo Jovic ◽

Rasa Milanov ◽

Danijela Joksimovic

Keyword(s):

Total Mercury ◽

Mytilus Galloprovincialis ◽

Adriatic Sea ◽

Human Health Risk ◽

Dry Weight ◽

The European Union ◽

Open Sea ◽

Mediterranean Mussel ◽

The Mediterranean ◽

Different Levels

The Mediterranean mussel Mytilus galloprovincialis (L) was collected from the fall 2005 to the winter 2009 from the six sites on the Montenegrin coastline. Two wild samples were collected from the open sea coastline, and two cultivated and two wild were from the Boka Kotorska Bay. The mussels soft tissue was analyzed for zinc (Zn), copper (Cu), lead (Pb), cadmium (Cd), arsenic (As) and total mercury (Hg). Concentrations of these metals ranged from 135.5-210 for Zn, 6.2-14.5 for Cu, 4.0-11.5 for Pb, 1.7-2.1 for Cd, 5.8-12.4 for As and 0.11-0.51 for Hg, in mg kg-1 dry weight. The metals were found to be present in the samples at different levels, but not in concentrations higher than maximum residual levels prescribed by the European Union (EU) and US Food and Drug Administration (USFDA) regulations for seafood. This indicates that the consumption of wild or cultivated mussels from the studied area is safe in moderate quantities.

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Trace Element Concentrations in the Mediterranean Mussel Mytilus galloprovincialis Lamarck, 1819 Caught from Sinop Coast of the Black Sea, Turkey

The Open Marine Biology Journal ◽

10.2174/1874450801206010001 ◽

2012 ◽

Vol 6 (1) ◽

pp. 1-8 ◽

Cited By ~ 6

Author(s):

Levent Bat

Keyword(s):

Trace Element ◽

Black Sea ◽

Mytilus Galloprovincialis ◽

The Black Sea ◽

Element Concentrations ◽

Mediterranean Mussel ◽

The Mediterranean

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A Comparative Assessment of the Chronic Effects of Micro- and Nano-Plastics on the Physiology of the Mediterranean Mussel Mytilus galloprovincialis

Nanomaterials ◽

10.3390/nano11030649 ◽

2021 ◽

Vol 11 (3) ◽

pp. 649

Author(s):

Marco Capolupo ◽

Paola Valbonesi ◽

Elena Fabbri

Keyword(s):

Mytilus Galloprovincialis ◽

Acetylcholinesterase Activity ◽

Particle Sizes ◽

Glutathione S Transferase ◽

Phase Ii Metabolism ◽

Chronic Effects ◽

Mediterranean Mussel ◽

Metabolism Enzyme ◽

The Mediterranean

The ocean contamination caused by micro- and nano-sized plastics is a matter of increasing concern regarding their potential effects on marine organisms. This study compared the effects of a 21-day exposure to 1.5, 15, and 150 ng/L of polystyrene microplastics (PS-MP, 3-µm) and nanoplastics (PS-NP, 50-nm) on a suite of biomarkers measured in the Mediterranean mussel Mytilus galloprovincialis. Endpoints encompassed immunological/lysosomal responses, oxidative stress/detoxification parameters, and neurotoxicological markers. Compared to PS-MP, PS-NP induced higher effects on lysosomal parameters of general stress. Exposures to both particle sizes increased lipid peroxidation and catalase activity in gills; PS-NP elicited greater effects on the phase-II metabolism enzyme glutathione S-transferase and on lysozyme activity, while only PS-MP inhibited the hemocyte phagocytosis, suggesting a major role of PS particle size in modulating immunological/detoxification pathways. A decreased acetylcholinesterase activity was induced by PS-NP, indicating their potential to impair neurological functions in mussels. Biomarker data integration in the Mussel Expert System identified an overall greater health status alteration in mussels exposed to PS-NP compared to PS-MP. This study shows that increasing concentrations of nanoplastics may induce higher effects than microplastics on the mussel’s lysosomal, metabolic, and neurological functions, eventually resulting in a greater impact on their overall fitness.

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Tissue-scale microbiota of the Mediterranean mussel (Mytilus galloprovincialis) and its relationship with the environment

The Science of The Total Environment ◽

10.1016/j.scitotenv.2020.137209 ◽

2020 ◽

Vol 717 ◽

pp. 137209 ◽

Cited By ~ 2

Author(s):

Margherita Musella ◽

Rasika Wathsala ◽

Teresa Tavella ◽

Simone Rampelli ◽

Monica Barone ◽

...

Keyword(s):

Mytilus Galloprovincialis ◽

Mediterranean Mussel ◽

The Mediterranean

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Metabolism of the mussel Mytilus galloprovincialis from two origins in the Ría de Arousa (north-west Spain)

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315400002848 ◽

2000 ◽

Vol 80 (5) ◽

pp. 865-872 ◽

Cited By ~ 38

Author(s):

Jose M.F. Babarro ◽

María José Fernández-Reiriz ◽

Uxío Labarta

Keyword(s):

Oxygen Consumption ◽

Rocky Shore ◽

Mytilus Galloprovincialis ◽

Excretion Rate ◽

Ammonia Excretion ◽

Dry Weight ◽

North West ◽

Cultivation Period ◽

Seed Origin ◽

Ammonia Excretion Rate

Mussel seed Mytilus galloprovincialis (Bivalvia: Mytilidae) from two origins (rocky shore and collector ropes) was cultivated on a raft in the Ría de Arousa (north-west Spain), from seeding to thinning out, for 226 d (November 1995–July 1996) and two aspects of metabolism, oxygen consumption rate (VO2) and ammonia excretion rate (VNH4-N) were studied in situ.The model derived from multiple analysis of oxygen consumption accounted for 91.9% of the variance, based on dry weight of the mussels and the environmental factors quality of food (organic content) and mainly chlorophyll-a. Seed origin also showed significant influence. The seasonal pattern of the oxygen consumption can be attributed mainly to the variation of chlorophyll-a, which showed a higher range of values in the spring months.Origin of seed did not show a homogeneous effect on oxygen consumption throughout the cultivation period. Collector rope mussels showed higher oxygen consumption values at the beginning of the cultivation period and after the first 15 d, but the rocky shore mussels showed a higher oxygen consumption between days 22 and 110. Energy-conserving patterns and lower condition index at the onset of the experiment for rocky shore mussels could explain these initial differences.Multiple analysis on the variation of ammonia excretion rate provided a model that accounted for 72.6% of the variance based on dry weight of mussels, seed origin and the environmental parameters chlorophyll-a and total particulate matter. The rocky shore mussels showed a significantly higher excretion values for most of the cultivation period, although there was no constant tendency throughout. High excretion values were recorded between January and March, whilst for the rest of the cultivation period values were low.The O:N index was higher in collector rope mussels for most of the cultivation period, which may suggest a more favourable energy metabolism and/or a more appropriate nutritional state for these specimens.

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Settling particles in the Golden Horn estuary, Sea of Marmara: Concentrations and fluxes of trace elements and radionuclides

Regional Studies in Marine Science ◽

10.1016/j.rsma.2021.101882 ◽

2021 ◽

pp. 101882

Author(s):

Gülşah Kalaycı ◽

Murat Belivermiş ◽

Narin Sezer ◽

Peter Swarzenski ◽

Önder Kılıç

Keyword(s):

Trace Elements ◽

Sea Of Marmara ◽

Settling Particles ◽

Golden Horn ◽

Golden Horn Estuary

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Utilization of Red Mud-Fly Ash Reinforced with Cement in Road Construction Applications

Advances in Materials Science and Engineering ◽

10.1155/2021/3728652 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Sarath Chandra K ◽

Krishnaiah S ◽

Kibebe Sahile

Keyword(s):

Fly Ash ◽

Red Mud ◽

Industrial Waste ◽

Construction Material ◽

Road Construction ◽

Dry Weight ◽

Strength Properties ◽

Environmental Threat ◽

The Right ◽

The Impact

Industrialization is the key to the growth of any country’s economy. However, on the other hand, the production of industrial waste is increasing enormously, which adversely impacts the environment and natural resources. Red mud is also a widespread industrial waste produced during aluminium extraction from bauxite ore in Bayer’s process. Red mud is a highly alkaline material that creates a massive environmental threat in nature. To reduce the impact of this solid waste material, the ideal method is to use it in construction works with appropriate stabilization. This study envisages the strength properties of red mud with fly ash and cement to use it as a road construction material in the subgrade. The influence of fly ash and cement on improving the strength properties of red mud was studied in detail by replacing red mud with 10%, 20%, and 30% with fly ash and 1%, 3%, and 5% of cement to its dry weight. The CBR (California bearing ratio) value was increased from 1.58% to 11.6% by stabilizing red mud with fly ash and cement, which can be used as a road construction material. The UCS (unconfined compressive strength) of red mud was increased from 825 kPa to 2340 kPa upon curing for 28 days with the right mix of fly ash and cement. Along with the strength properties, the chemical analysis of leachate for the best suitable mix was performed according to the TCLP method to understand the hazardous materials present in the red mud when it is injected as ground material. Both strength properties and the leachate characteristics prove that the red mud with suitable fly ash and cement is an excellent material in road constructions.

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