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Evrard, Olivier; Durand, Roxanne; Nakao, Atsushi; Laceby, J Patrick; Lefèvre, Irène; Wakiyama, Yoshifumi; Hayashi, Seiji; Asanuma-Brice, Cécile; Cerdan, Olivier (2020): Spectrocolorimetric, geochemical and radiocesium properties of source material and sediment collected after the 2019 typhoons in Fukushima coastal rivers (Japan). PANGAEA, https://doi.org/10.1594/PANGAEA.923582

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Abstract:
Spectrocolorimetric properties analysed with a portable diffuse reflectance spectrophotometer (Konica Minolta CM-700d) and geochemical contents obtained with an energy dispersive X-ray fluorescence spectrometer (ED-XRF Epsilon 4) were analysed in potential source material that may supply sediment to coastal rivers draining the main Fukushima radioactive pollution plume (Japan). Three potential source materials (n=57) were considered (cropland soils ready for cultivation after the completion of the local decontamination programme; forest soils and subsurface material originating from landslides and channel bank collapse). Recent sediment lag deposits (mud drapes deposited on channel-bed sand; n=24) were collected along the main rivers draining the Mano and Niida catchments (Fukushima Prefecture, Japan) on the 29th and 30th of October 2019 after the 2019 typhoon season including typhoon Hagibis. In addition to spectrolorimetric and geochemical properties, radiocesium (Cs-137) concentrations were analysed by gamma spectrometry using Germanium Hyperpure detectors in all source and sediment samples (n=81).
Keyword(s):
nuclear accident; river pollution; Sediment fingerprinting; sediment tracing
Related to:
Evrard, Olivier; Durand, Roxanne; Nakao, Atsushi; Laceby, J Patrick; Lefèvre, Irène; Wakiyama, Yoshifumi; Hayashi, Seiji; Asanuma-Brice, Cécile; Cerdan, Olivier (2020): Impact of the 2019 typhoons on sediment source contributions and radiocesium concentrations in rivers draining the Fukushima radioactive plume, Japan. Comptes Rendus Geoscience, 352(3), 199-211, https://doi.org/10.5802/crgeos.42
Coverage:
Median Latitude: 37.687966 * Median Longitude: 140.767006 * South-bound Latitude: 37.558400 * West-bound Longitude: 140.654600 * North-bound Latitude: 37.742000 * East-bound Longitude: 141.015400
Date/Time Start: 2015-03-24T00:00:00 * Date/Time End: 2019-10-30T00:00:00
Event(s):
FML_1444 * Latitude: 37.732400 * Longitude: 140.688300 * Date/Time: 2019-10-29T00:00:00 * Location: Mano River, Fukushima Prefecture, Japan
FML_1446 * Latitude: 37.742000 * Longitude: 140.726000 * Date/Time: 2019-10-29T00:00:00 * Location: Mano River, Fukushima Prefecture, Japan
FML_1446B * Latitude: 37.736000 * Longitude: 140.734300 * Date/Time: 2019-10-29T00:00:00 * Location: Mano River, Fukushima Prefecture, Japan
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventEvrard, Olivier
2MaterialMaterialEvrard, OlivierSource or target (sediment) material
3ClassClassEvrard, OlivierSource (D=decontamination material; F=forest; C=cropland; S=subsurface) or sediment (M=Mano River; N=Niida River) type
4Area/localityAreaEvrard, OlivierCatchment
5Latitude of eventLatitudeEvrard, Olivier
6Longitude of eventLongitudeEvrard, Olivier
7Date/Time of eventDate/TimeEvrard, Olivier
8MagnesiumMgmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
9AluminiumAlmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
10SiliconSimg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
11PotassiumKmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
12CalciumCamg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
13TitaniumTimg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
14ManganeseMnmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
15IronFemg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
16CobaltComg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
17NickelNimg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
18CopperCumg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
19ZincZnmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
20RubidiumRbmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
21StrontiumSrmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
22ZirconiumZrmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
23LeadPbmg/kgEvrard, OlivierEnergy dispersive X-ray fluorescence spectrometer (ED-XRF)
24Color, L*, lightnessL*Evrard, OlivierSpectrocolorimetry
25Color, a*a*Evrard, OlivierSpectrocolorimetry
26Color, b*b*Evrard, OlivierSpectrocolorimetry
27Color, C*C*Evrard, OlivierSpectrocolorimetry
28Color, HueHue°CIEEvrard, OlivierSpectrocolorimetrycolor h
29Color, XXEvrard, OlivierSpectrocolorimetrycolor x
30Color, YYEvrard, OlivierSpectrocolorimetrycolor y
31Color, ZZEvrard, OlivierSpectrocolorimetrycolor z
32Color, LLEvrard, OlivierSpectrocolorimetry
33Color, aaEvrard, OlivierSpectrocolorimetry
34Color BLUEblueEvrard, OlivierSpectrocolorimetrycolor b
35Color, u*u*Evrard, OlivierSpectrocolorimetry
36Color, v*v*Evrard, OlivierSpectrocolorimetry
37Color, normalized uu'Evrard, OlivierSpectrocolorimetry
38Color, normalized vv'Evrard, OlivierSpectrocolorimetry
39Caesium-137137CsBq/kgEvrard, OlivierGamma spectrometry
Size:
2905 data points

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