210Po and 210Pb activity concentrations in Mytilus galloprovincialis from Croatian Adriatic coast with the related dose assessment to the coastal population

Abstract It is inevitable that we are exposed to radiation daily from various sources and products that we consume on daily basis. The use of toothpaste for oral hygiene is one of the most common daily practices by humans and yet very little data are available regarding its radiation content. In this work, we investigated the concentrations of gamma emitting radionuclides in toothpaste samples consumed in Jordan. 40K and 226Ra were detected in almost one-third of the samples, whereas 228Ra was detected in nearly half of them. The corresponding activity concentrations in the detected samples were in the ranges of 68.7–154.2, 4.6–14.1 and 1.3–10.0 Bq/kg, respectively. Dose assessment of accidental ingestion of toothpaste for children and adults was made, and its contribution to the annual effective dose was found to be very minimal with maximum doses of ~2.9 and 1.3 μSv for children and adults, respectively.

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Using neutral and outlier loci to uncover the genetic structure of 'Mytilus galloprovincialis' populations from the eastern Adriatic coast using population genetic and seascape genetic approaches

10.26686/wgtn.17136173 ◽

2021 ◽

Author(s):

◽

Joanna Szondy Hamilton

Keyword(s):

Genetic Structure ◽

Mytilus Galloprovincialis ◽

Blue Mussel ◽

Strong Association ◽

Outlier Locus ◽

Outlier Loci ◽

Adriatic Coast ◽

Low Levels ◽

Polymorphic Microsatellite ◽

Highly Correlated

<p>The genetic variation of the Mediterranean blue mussel, Mytilus galloprovincialis from the eastern coastline of the Adriatic Sea was investigated using polymorphic microsatellite markers. In total, 843 individuals were sampled from 18 populations representing a variety of coastal environments in Croatia, Bosnia-Herzegovina, Montenegro and Albania. Neutral loci revealed low levels of genetic structure in this continuously distributed species, while one outlier locus, MGE7, which may be under selection, provided strong evidence of genetic structure. The distribution of one of the alleles of this locus, MGE7²⁴³, was significantly correlated with latitude. A genetic seascape analysis using 9 environmental and 3 geospatial variables revealed a strong association between MGE7²⁴³ and three highly correlated environmental variables, maximum sea surface temperature, minimum salinity and maximum chlorophyll-a. This association was maintained for homozygous genotypes for the MGE7²⁴³ allele, but not for heterozygotes, providing further evidence that the locus MGE7 may be under selection or closely linked to a gene under selection. These findings highlight how previously unrecognised genetic structure can be identified through the use of genetic seascape approaches.</p>

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Organotin compounds in seawater and Mytilus galloprovincialis mussels along the Croatian Adriatic Coast

Marine Pollution Bulletin ◽

10.1016/j.marpolbul.2011.12.009 ◽

2012 ◽

Vol 64 (2) ◽

pp. 189-199 ◽

Cited By ~ 54

Author(s):

Martina Furdek ◽

Mitja Vahčič ◽

Janez Ščančar ◽

Radmila Milačič ◽

Goran Kniewald ◽

...

Keyword(s):

Mytilus Galloprovincialis ◽

Organotin Compounds ◽

Adriatic Coast

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NATURAL RADIOACTIVITY MEASUREMENT AND DOSE ASSESSMENT OF BEACH PLACER SANDS IN THE COASTAL REGION OF TAMIL NADU (INDIA)

Radiation Protection Dosimetry ◽

10.1093/rpd/ncz109 ◽

2019 ◽

Vol 184 (3-4) ◽

pp. 409-412

Author(s):

N Veerasamy ◽

S K Sahoo ◽

K Inoue ◽

M Fukushi ◽

H Tsuruoka ◽

...

Keyword(s):

Tamil Nadu ◽

Coastal Region ◽

Dose Assessment ◽

Dose Rates ◽

Average Value ◽

Activity Concentrations ◽

Tamil Nadu State ◽

Preliminary Study ◽

Annual Effective Dose Rate ◽

Ambient Dose

Abstract A preliminary study was carried out to determine the radioactivity concentration of 232Th, 226Ra and 40K in beach placer sands from 13 locations along the coast line of Tamil Nadu state, India. The ambient dose rates varied from 9 to 467 nGy h−1. The activity concentrations of radionuclide 232Th, 226Ra and 40K ranged from 5.2 to 683 Bq kg−1, 13 to 198 Bq kg−1 and 107 to 421 Bq kg−1, respectively. The annual effective dose rate ranges from 27 to 620 μSv y−1 and was higher at seven beaches in comparison to the UNSCEAR annual worldwide average value.

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