Uranium and thorium in muscle tissue of fish taken from the southern Baltic

Szefer, Piotr; Szefer, K.; Falandysz, Jerzy

doi:10.1007/bf02365429

Cited by 9 publications

(4 citation statements)

References 25 publications

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“…Adsorbed Th enters the human body through inhalation or ingestion or through skin wounds and excessive exposure can induce cancer of the liver, lungs, pancreas, spleen, bone, and blood [ 101 ]. Th originates from the air and terrestrial sources to the marine environment [ 102 ], and was detected in feedstuffs, such as meat-bone meal and fish meal from aquaculture [ 103 ], and in molluscs and fish collected from the Southern Baltic Sea [ 104 , 105 ]. However, none of these studies indicated radiation hazards.…”

Section: Discussionmentioning

confidence: 99%

Exploring the Biotechnological Value of Marine Invertebrates: A Closer Look at the Biochemical and Antioxidant Properties of Sabella spallanzanii and Microcosmus squamiger

Pan

Rodrigues

Pereira

et al. 2021

Animals

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Sabella spallanzanii and Microcosmus squamiger were profiled for proximate composition, minerals, amino acids, fatty acids (FA), carotenoids, radical scavenging activity on the 2,2-diphenyl-1- picrylhydrazyl (DPPH) radical, oxygen radical absorbance capacity (ORAC) and iron and copper chelating properties. Microcosmus squamiger had the highest level of moisture and crude protein, S. spallanzanii was enriched in crude fat and ash. Both species had similar levels of carbohydrates and energy. There was a prevalence of arginine and glycine in S. spallanzanii, and of taurine in M. squamiger. The most abundant minerals in both species were Na, Ca, and K. The methanol extract of S. spallanzanii had metal chelating properties towards copper and iron, while the methanol extract of M. squamiger was able to chelate copper. M. squamiger extracts had similar ORAC values. Fucoxanthinol and fucoxanthin were the major carotenoids in the M. squamiger dichloromethane extract. Saturated FA were more abundant than unsaturated ones in methanol extracts, and unsaturated FA prevailed in the dichloromethane extracts. Palmitic acid was the predominant FA in methanol extracts, whereas eicosapentaenoic (EPA) and dihomo-γ-linolenic acids were the major compounds in dichloromethane extracts. Low n-6/n-3 ratios were obtained. Our results suggests that both species could be explored as sources of bioactive ingredients with multiple applications.

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Section: Discussionmentioning

confidence: 99%

Exploring the Biotechnological Value of Marine Invertebrates: A Closer Look at the Biochemical and Antioxidant Properties of Sabella spallanzanii and Microcosmus squamiger

Pan

Rodrigues

Pereira

et al. 2021

Animals

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“…Uranium contamination results from milling processes for nuclear weapons and reactor fuel. Soluble U(VI) leaches from the mill tailings and migrates to surface water bodies, where it can biomagnify in food chains (76,79). Reduced uranium [U(IV)] is of lesser concern because it can be immobilized in subsurface sediments (1,15,27,54,55).…”

mentioning

confidence: 99%

“…Methylmercury is several times more carcinogenic and neurotoxic than inorganic mercury (56,69), and it does bioaccumulate (22,75,76,79). Furthermore, MeHg poisoning is irreversible (22,75), and it is particularly dangerous because it can cross the blood-brain barrier.…”

mentioning

confidence: 99%

Mercury and Other Heavy Metals Influence Bacterial Community Structure in Contaminated Tennessee Streams

Vishnivetskaya

Mosher

Palumbo

et al. 2011

Appl Environ Microbiol

140

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High concentrations of uranium, inorganic mercury [Hg(II)], and methylmercury (MeHg) have been detected in streams located in the Department of Energy reservation in Oak Ridge, TN. To determine the potential effects of the surface water contamination on the microbial community composition, surface stream sediments were collected 7 times during the year, from 5 contaminated locations and 1 control stream. Fifty-nine samples were analyzed for bacterial community composition and geochemistry. Community characterization was based on GS 454 FLX pyrosequencing with 235 Mb of 16S rRNA gene sequence targeting the V4 region. Sorting and filtering of the raw reads resulted in 588,699 high-quality sequences with lengths of >200 bp. The bacterial community consisted of 23 phyla, including Proteobacteria (ranging from 22.9 to 58.5% per sample), Cyanobacteria (0.2 to 32.0%), Acidobacteria (1.6 to 30.6%), Verrucomicrobia (3.4 to 31.0%), and unclassified bacteria. Redundancy analysis indicated no significant differences in the bacterial community structure between midchannel and near-bank samples. Significant correlations were found between the bacterial community and seasonal as well as geochemical factors. Furthermore, several community members within the Proteobacteria group that includes sulfate-reducing bacteria and within the Verrucomicrobia group appeared to be associated positively with Hg and MeHg. This study is the first to indicate an influence of MeHg on the in situ microbial community and suggests possible roles of these bacteria in the Hg/MeHg cycle.

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“…Several research projects concerning radiation activity, namely, that of 40 K, 238 U, 232 Th, 137 Cs, 134 Cs, 210 Po, and 210 Pb concentrations in marine organisms and fish, are ongoing (Ababneh et al 2018 ; Alam et al 1995 ; Szefer et al 1990 ). Specifically, Nandhakumari et al ( 2014 ) studied the radioactivity content in sediment, water, and fish collected from the Rajakkamangalam Estuary of Kanyakumari District in the state of Tamil Nadu, India.…”

Section: Introductionmentioning

confidence: 99%

Gross alpha and gross beta activities in selected marine species in Vietnam

Duong

Luong

Châu

et al. 2020

Environ Sci Pollut Res

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The measured gross alpha and gross beta activities in the edible muscle tissues of eleven selected marine species along the coast of North Vietnam varied from 10.2 ± 1.5 to 73.2 ± 8.1 Bq/kg (wwt) and from 10.6 ± 0.4 to 68.8 ± 2.8 Bq/kg (wwt), respectively. The lowest gross alpha activity was recorded for bigfin reef squid (Sepioteuthis lessoniana) as a result of its carnivorous diet, and the highest alpha activity was noted for blood cockle (Anadara granosa) as a result of its omnivorous diet. However, the gross beta activities in both carnivorous and omnivorous species were similar. The highest and lowest gross beta activities were observed for narrow-barred Spanish mackerel (Scomberomorus commerson) and for bigfin reef squid and squid (Teuthida), respectively. All three aforementioned species have carnivorous diets. The calculated annual committed effective dose resulting from the consumption of 25 kg of muscle tissue per year varied from 192 to 1375 μS with an average of 689 μS.

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Uranium and thorium in muscle tissue of fish taken from the southern Baltic

Cited by 9 publications

References 25 publications

Exploring the Biotechnological Value of Marine Invertebrates: A Closer Look at the Biochemical and Antioxidant Properties of Sabella spallanzanii and Microcosmus squamiger

Exploring the Biotechnological Value of Marine Invertebrates: A Closer Look at the Biochemical and Antioxidant Properties of Sabella spallanzanii and Microcosmus squamiger

Mercury and Other Heavy Metals Influence Bacterial Community Structure in Contaminated Tennessee Streams

Gross alpha and gross beta activities in selected marine species in Vietnam

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