Gamma Radiation Measurements and Dose Rate in the Coastal Areas of a Volcanic Island, Aegean Sea, Greece

Florou, H.; Kritidis, P.

doi:10.1093/oxfordjournals.rpd.a081543

Cited by 58 publications

(18 citation statements)

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“…A car-borne system was used, comprising a 2 00 Â 2 00 NaI (Tl) cylindrical detector with a sensitivity for 226 Ra of 1 cpm per 3.5 Â 10 À3 mR h À1 at 1 m above the ground (Florou and Kritidis, 1992;Trabidou, 2004).…”

Section: In Situ and Laboratory Measurementsmentioning

confidence: 99%

“…The range of the annual dose rates in other regions of Greece is also included in Table 5 for comparison purposes (Kritidis and Florou, 1989;Florou and Kritidis, 1992;Anagnostakis et al, 1996). High external annual doses in the areas of Milos and Ikaria are found, in relation to other Greek regions, through the in situ gamma-radiometry.…”

Section: Dose Rates To Exposed Humansmentioning

confidence: 99%

“…(1) on the basis of laboratory gamma-spectroscopy, are given in Table 5. The annual dose rates in Greek regions are also included in Table 5 for comparison purposes (Kritidis and Florou, 1989;Florou and Kritidis, 1992). The doses, due to sediment and soil, are higher in the vicinity of the radioactive springs in the island of Ikaria, related to other Greek areas.…”

Section: Dose Rates To Exposed Humansmentioning

confidence: 99%

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An assessment of the external radiological impact in areas of Greece with elevated natural radioactivity

Florou

Trabidou

Nicolaou

2007

Journal of Environmental Radioactivity

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Section: In Situ and Laboratory Measurementsmentioning

confidence: 99%

Section: Dose Rates To Exposed Humansmentioning

confidence: 99%

Section: Dose Rates To Exposed Humansmentioning

confidence: 99%

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An assessment of the external radiological impact in areas of Greece with elevated natural radioactivity

Florou

Trabidou

Nicolaou

2007

Journal of Environmental Radioactivity

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“…Natural environmental radioactivity and the associated external exposure due to gamma radiation depend primarily on the geological and geographical conditions. Namely, the specific levels of terrestrial environmental radiations are related to the type of rocks from which the soils originate (Florou and Kritidis 1992;UNSCEAR 2000;Chiozzi et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Distribution of natural radionuclides in surface soils in the vicinity of abandoned uranium mines in Serbia

Momčilović

Kovačević²,

Tanic³

et al. 2012

Environ Monit Assess

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The activity concentrations of natural radionuclides in soils from the area affected by uranium mining at Stara Planina Mountain in Serbia were studied and compared with the results obtained from an area with no mining activities (background area). In the affected area, the activity concentrations ranged from 1.75 to 19.2 mg kg(-1) for uranium and from 1.57 to 26.9 mg kg(-1) for thorium which is several-fold higher than those in the background area. The Th/U, K/U, and K/Th activity ratios were also determined and compared with data from similar studies worldwide. External gamma dose rate in the air due to uranium, thorium, and potassium at 1 m above ground level in the area affected by uranium mining was found to be 91.3 nGy h(-1), i.e., about two-fold higher than that in background area. The results of this preliminary study indicate the importance of radiological evaluation of the area and implementation of remedial measures in order to prevent further dispersion of radionuclides in the environment.

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“…For example, Florou et al, (2004) assessed chromosomal aberrations in microfauna collected from geothermal spring areas on the island of Ikaria, Greece where maximum dose rates of natural gamma emitters in sediments were 9.6 mGy yr -1 (~ 0.001 mGy/hr -1 ). These values are substantially elevated above the reported mean of 0.07 mGy yr -1 (~ 0.008 µGy/hr -1 ) for coastal sediments in Greece (Florou & Kritidis, 1992). An elevated level of cells displaying chromosome aberrations (3.8%) was recorded in populations of the amphipod crustacean Melita palmata collected from these areas compared with control sites (1.5 -1.7%).…”

Section: Radiation-induced Mutation In Crustaceansmentioning

confidence: 51%

The biological effects of ionising radiation on Crustaceans: A review

et al. 2015

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Historic approaches to radiation protection are founded on the conjecture that measures to safeguard humans are adequate to protect non-human organisms. This view is disparate with other toxicants wherein well-developed frameworks exist to minimise exposure of biota. Significant data gaps for many organisms, coupled with high profile nuclear incidents such as Chernobyl and Fukushima, have prompted the re-evaluation of our approach toward environmental radioprotection. Elucidating the impacts of radiation on biota has been identified as priority area for future research within both scientific and regulatory communities. The crustaceans are ubiquitous in aquatic ecosystems, comprising greater than 66,000 species of ecological and commercial importance. This paper aims to assess the available literature of radiation-induced effects within this subphylum and identify knowledge gaps. A literature search was conducted pertaining to radiation effects on four endpoints as stipulated by a number of regulatory bodies: mortality, morbidity, reproduction and mutation. A major finding of this review was the paucity of data regarding the effects of environmentally relevant radiation doses on crustacean biology. Extremely few studies utilising chronic exposure durations or wild populations were found across all four endpoints. The dose levels at which effects occur was found to vary by orders of magnitude thus presenting difficulties in developing phyla-specific benchmark values and reference levels for radioprotection. Based on the limited data, mutation was found to be the most sensitive endpoint of radiation exposure, with mortality the least sensitive. Current phyla-specific dose levels and limits proposed by major regulatory bodies were found to be inadequate to protect species across a range of endpoints including morbidity, mutation and reproduction and examples are discussed within. These findings serve to prioritise areas for future research that will significantly advance understanding of radiation-induced effects in aquatic invertebrates and consequently enhance ability to predict the impacts of radioactive releases on the environment.

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Gamma Radiation Measurements and Dose Rate in the Coastal Areas of a Volcanic Island, Aegean Sea, Greece

Cited by 58 publications

References 0 publications

An assessment of the external radiological impact in areas of Greece with elevated natural radioactivity

An assessment of the external radiological impact in areas of Greece with elevated natural radioactivity

Distribution of natural radionuclides in surface soils in the vicinity of abandoned uranium mines in Serbia

The biological effects of ionising radiation on Crustaceans: A review

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