Natural Gamma Radiation and Uranium Distribution in Soils and Waters in the Agueda River Basin (Spain-Portugal)

Sánchez-González, Sara; Curto, Noemí; Caravantes, P.; García-Sánchez, Antonio-Javier

doi:10.1016/j.proeps.2014.05.019

Cited by 9 publications

(3 citation statements)

References 15 publications

(4 reference statements)

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“…Mining activity, almost only U‐mines, has been extended over a long period, in the study area, with consequences to surface waters and soils (e.g. Carvalho et al ., ; Sánchez‐González et al ., ).…”

Section: Study Areamentioning

confidence: 97%

Ischnura Graellsii(Insecta: Odonata) A Water Pollution Biovulnerability Indicator—Probability Mapping Using Spatial Uncertainty

Campos

Velasco

Sanz

et al. 2014

River Research & Apps

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Monitoring changes of anthropogenic impacts from a broad scope of species in biodiversity research require practical, easy-to-use and efficient assessment as well as monitoring methods. Odonates (Insecta: Odonata) are a valuable tool for assessing freshwater systems' quality and have been used as bioindicators of environmental variety.The Águeda watershed, located in the central west of the Iberian Peninsula, shows an exponential increase in the last 60 years of natural resource exploitation coupled with alterations in consumer habits, causing significant environmental changes and deferred direct effects on the natural habitats.Fourteen river sites, selected a priori, were sampled. Adult odonates were collected using standardized methods. Selected environmental variables and water quality parameters were evaluated in situ. Precipitation and altitude were the most important physical, environmental variables in explaining the assemblage structure. Meaningful abiotic-biotic as well as biotic-biotic relationships were set up. Furthermore, situations in the urbanized watershed area showed to be highly impacted and closely related with damselfly Ischnura graellsii, which should be targeted as a possible vulnerability indicator for polluted fresh waters.A probability map for Ischnura graellsii distribution was performed using indicator kriging with external drift and spatial uncertainty obtain through the calculation of two categorical maps (binary), corresponding to the mean (0.485) and the trimmed mean by discharging the 10% lower distribution tail (0.533). The subsequent overlapping of both categorical maps (binary) allowed the definition of the higher spatial uncertainty map for surface water contamination. Figure 6. (a) Categorical map (binary) of the Ig probability being higher (1) or lower (0) than the μ = 0.485; (b) categorical map (binary) of the Ig probability being higher (1) or lower (0) than the trimmed μ = 0.533; (c) spatial uncertainty visualization ISCHNURA GRAELLSII-A WATER POLLUTION BIOVULNERABILITY INDICATOR

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Section: Study Areamentioning

confidence: 97%

Ischnura Graellsii(Insecta: Odonata) A Water Pollution Biovulnerability Indicator—Probability Mapping Using Spatial Uncertainty

Campos

Velasco

Sanz

et al. 2014

River Research & Apps

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“…As can be seen in var i ous sources the most fre quently used complexing agents are or ganic com pounds con tain ing nitrous or phos pho rous func tional groups, e. g. tri-n-butylphosphate (TBP), tri-n-octyl-phosphin-ox ide (TOPO), ethylenediamine-tetraacetic acid (EDTA), diglycolamides, and N, N, N', N'-tetraoctyl diglycolamide (TODGA) [17 -20], Fran cis [21], Horwitz [22], and Perrier [23] de scribe the use of oxa lates and ci trates of var i ous concen tra tions. Sanchez-Gon za lez [24] men tions car bon ates for the ex trac tion of ura nium.…”

Section: Introductionmentioning

confidence: 99%

Study of the alternative elution agent for the DIPHONIX resin

Kanka

Janda

2016

NUCL TECH RAD PROT

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The work was fo cused on the ex per i men tal de ter mi na tion of the sep a ra tion-ex trac tion proper ties of solid extrahent DIPHONIX (Eichrom In dus tries, USA) de pend ing on the used eluent. Ex trac tion prop er ties were tested for plu to nium, am er i cium, cu rium, and ura nium. The used mo bile phases were hy dro chlo ric acid and ni tric acid at var i ous con cen tra tions. The aim was to find the most ap pro pri ate com bi na tion of mo bile phase and eluent, which would lead to the high est pos si ble yield. The most com monly used eluent pub lished in lit er a ture is 1-hydroxyethane 1, 1-diphosphonic acid (HEDP, Etidronic Acid). Based on the re search the spe cific com pounds were se lected which are generaly known for their complexing prop er ties, such as the salts of ox alic acid and cit ric acid at dif fer ent con cen tra tions. Ac tiv i ties of the samples ob tained by elu tion were mea sured by liq uid scin til la tion spec trom e try.

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“…Background terrestrial gamma radiation dose rate is influenced by primordial radioactive concentration such as uranium, thorium and potassium (Apriantoro et al, 2013;Mohapatra et al, 2013;Krishnamoorthy et al, 2013;Sánchez-González et al, 2014;Karataşlı et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Health Risk Implications of Terrestrial Gamma Radiation Dose Rate in Central Jakarta, Indonesia: Short Communications

Apriantoro

Muslim²,

Iskandar³

et al. 2017

GJHS

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Terrestrial gamma radiation (TGR) dose rate measurement has been conducted around downtown region of Central Jakarta Indonesia. The real time count data was taken 1 m above the ground in eight sub district locations by using a portable gamma Survey meter of Exploranium GR-135 Plus Model. The reading position was determined by Garmin GPSMAP 62s. The average value of TGR dose rate of (47.76 ± 18.24) nSv h -1 ranged from 6.40 nSv h -1 to 120.90 nSv -1 , it is higher than in Indonesia average. The annual effective dose rate of 0.06 mSv contributes to fatal cancer risk of about 3.32 x 10 -6 per year for each individual in Central Jakarta. For the subdistrict TGR dose rate value was varied, however all the result is not high enough to cause for alarm.

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Natural Gamma Radiation and Uranium Distribution in Soils and Waters in the Agueda River Basin (Spain-Portugal)

Cited by 9 publications

References 15 publications

Ischnura Graellsii(Insecta: Odonata) A Water Pollution Biovulnerability Indicator—Probability Mapping Using Spatial Uncertainty

Ischnura Graellsii(Insecta: Odonata) A Water Pollution Biovulnerability Indicator—Probability Mapping Using Spatial Uncertainty

Study of the alternative elution agent for the DIPHONIX resin

Health Risk Implications of Terrestrial Gamma Radiation Dose Rate in Central Jakarta, Indonesia: Short Communications

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