Citation:

PANGAEA.923582

Name: Spectrocolorimetric, geochemical and radiocesium properties of source material and sediment collected after the 2019 typhoons in Fukushima coastal rivers (Japan)
Published: 2020-10-05
License: https://creativecommons.org/licenses/by/4.0/
Keywords: nuclear accident; river pollution; Sediment fingerprinting; sediment tracing

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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):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Evrard, Olivier
2	Material	Material		Evrard, Olivier		Source or target (sediment) material
3	Class	Class		Evrard, Olivier		Source (D=decontamination material; F=forest; C=cropland; S=subsurface) or sediment (M=Mano River; N=Niida River) type
4	Area/locality	Area		Evrard, Olivier		Catchment
5	Latitude of event	Latitude		Evrard, Olivier
6	Longitude of event	Longitude		Evrard, Olivier
7	Date/Time of event	Date/Time		Evrard, Olivier
8	Magnesium	Mg	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
9	Aluminium	Al	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
10	Silicon	Si	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
11	Potassium	K	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
12	Calcium	Ca	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
13	Titanium	Ti	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
14	Manganese	Mn	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
15	Iron	Fe	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
16	Cobalt	Co	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
17	Nickel	Ni	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
18	Copper	Cu	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
19	Zinc	Zn	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
20	Rubidium	Rb	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
21	Strontium	Sr	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
22	Zirconium	Zr	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
23	Lead	Pb	mg/kg	Evrard, Olivier	Energy dispersive X-ray fluorescence spectrometer (ED-XRF)
24	Color, L*, lightness	L*		Evrard, Olivier	Spectrocolorimetry
25	Color, a*	a*		Evrard, Olivier	Spectrocolorimetry
26	Color, b*	b*		Evrard, Olivier	Spectrocolorimetry
27	Color, C*	C*		Evrard, Olivier	Spectrocolorimetry
28	Color, Hue	Hue	°CIE	Evrard, Olivier	Spectrocolorimetry	color h
29	Color, X	X		Evrard, Olivier	Spectrocolorimetry	color x
30	Color, Y	Y		Evrard, Olivier	Spectrocolorimetry	color y
31	Color, Z	Z		Evrard, Olivier	Spectrocolorimetry	color z
32	Color, L	L		Evrard, Olivier	Spectrocolorimetry
33	Color, a	a		Evrard, Olivier	Spectrocolorimetry
34	Color BLUE	blue		Evrard, Olivier	Spectrocolorimetry	color b
35	Color, u*	u*		Evrard, Olivier	Spectrocolorimetry
36	Color, v*	v*		Evrard, Olivier	Spectrocolorimetry
37	Color, normalized u	u'		Evrard, Olivier	Spectrocolorimetry
38	Color, normalized v	v'		Evrard, Olivier	Spectrocolorimetry
39	Caesium-137	137Cs	Bq/kg	Evrard, Olivier	Gamma spectrometry

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

2905 data points

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