Citation:

PANGAEA.951148

Name: Radon emanation from polymetallic nodules from the CCZ collected during SONNE cruises SO239 and SO268/2
Published: 2022-11-21
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Clarion Clipperton Fracture Zone; isotope data; polymetallic nodules; Radioactivity

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Published: 2022-11-21 • DOI registered: 2023-01-03

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Abstract:

This dataset comprises radon concentrations emanated from four polymetallic nodules of different sizes from the CCZ. The nodules were collected in the framework of the European collaborative JPI Oceans MiningImpact project onboard R/V SONNE cruises SO239 in 2015 and SO268 in 2019. Radon emanation was measured by enclosing the nodules in a glass chamber (volume = 2.02 L) while continuously circulating the gas in the system through a Rad7 device (Durrige Inc.), which is designed to measure specifically radon. As comparison, a 4.6 Bq Ra-226 standard was analyzed. The concentrations were evaluated with the Capture® software.

Keyword(s):

Clarion Clipperton Fracture Zone; isotope data; polymetallic nodules; Radioactivity

Supplement to:

Volz, Jessica B; Geibert, Walter; Koehler, Dennis; Rutgers van der Loeff, Michiel M; Kasten, Sabine (2023): Alpha radiation from polymetallic nodules and potential health risks from deep-sea mining. Scientific Reports, 13(1), 7985, https://doi.org/10.1038/s41598-023-33971-w

Project(s):

JPI Oceans - Ecological Aspects of Deep-Sea Mining (JPIO-MiningImpact)

Marine Geochemistry @ AWI (AWI_MarGeoChem)

Funding:

Federal Ministry of Education and Research (BMBF), grant/award no. 03F0812F : JPI-O MiningImpact: Auswirkungen von Manganknollenbergbau auf biogeochemische Prozesse und die Ausbreitung von Stoffen in der Tiefsee

Coverage:

Median Latitude: 14.081301 * Median Longitude: -121.545051 * South-bound Latitude: 11.807670 * West-bound Longitude: -128.362170 * North-bound Latitude: 18.795830 * East-bound Longitude: -117.015033

Date/Time Start: 2015-03-29T04:18:00 * Date/Time End: 2019-04-11T07:44:54

Minimum Elevation: -4833.4 m * Maximum Elevation: -4122.2 m

Event(s):

SO239_60-1 (BC9) * Latitude: 11.807670 * Longitude: -117.550330 * Date/Time: 2015-03-29T04:18:00 * Elevation: -4324.5 m * Location: North Pacific Ocean * Campaign: * Basis: * Method/Device: Box corer (BC) * Comment: German BGR

SO239_119-1 (BC20) * Latitude: 13.859170 * Longitude: -123.252670 * Date/Time: 2015-04-08T08:06:00 * Elevation: -4516.2 m * Location: North Pacific Ocean * Campaign: * Basis: * Method/Device: Box corer (BC) * Comment: Belgian GSR

SO239_195-1 (BC31) * Latitude: 18.795830 * Longitude: -128.362170 * Date/Time: 2015-04-21T20:08:00 * Elevation: -4833.4 m * Location: North Pacific Ocean * Campaign: * Basis: * Method/Device: Box corer (BC) * Comment: APEI3

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Volz, Jessica B
2	Sample code/label	Sample label		Volz, Jessica B
3	Time in hours	Time h	h	Volz, Jessica B		of measurement
4	Radon-222	222Rn	Bq/l	Volz, Jessica B	Calculated
5	Radon-222, uncertainty	222Rn unc	±	Volz, Jessica B	Calculated, 2 sigma
6	Radon-222	222Rn	Bq	Volz, Jessica B	Emanated	chamber volume: 2.02L
7	Radon-222, uncertainty	222Rn unc	±	Volz, Jessica B	Calculated, 2 sigma

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

750 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Sample label	3 Time h [h] (of measurement)	4 222Rn [Bq/l] (Calculated)	5 222Rn unc [±] (Calculated, 2 sigma)	6 222Rn [Bq] (chamber volume: 2.02L, Emanated)	7 222Rn unc [±] (Calculated, 2 sigma)
	4.6 Bq 226Ra standard	0.00	0.003	0.032	0.006	0.065
	4.6 Bq 226Ra standard	0.25	0.007	0.032	0.014	0.065
	4.6 Bq 226Ra standard	0.50	0.020	0.039	0.040	0.079
	4.6 Bq 226Ra standard	0.75	0.013	0.036	0.026	0.073
	4.6 Bq 226Ra standard	1.00	0.013	0.036	0.026	0.073
	4.6 Bq 226Ra standard	1.25	0.013	0.036	0.026	0.073
	4.6 Bq 226Ra standard	1.50	0.020	0.039	0.040	0.079
	4.6 Bq 226Ra standard	1.75	0.013	0.036	0.026	0.073
	4.6 Bq 226Ra standard	2.00	0.007	0.032	0.014	0.065
	4.6 Bq 226Ra standard	2.25	0.020	0.040	0.040	0.081
	4.6 Bq 226Ra standard	2.50	0.053	0.053	0.107	0.107
	4.6 Bq 226Ra standard	2.75	0.033	0.045	0.067	0.091
	4.6 Bq 226Ra standard	3.00	0.072	0.059	0.145	0.119
	4.6 Bq 226Ra standard	3.25	0.046	0.050	0.093	0.101
	4.6 Bq 226Ra standard	3.50	0.029	0.045	0.059	0.091
	4.6 Bq 226Ra standard	3.75	0.040	0.048	0.081	0.097
	4.6 Bq 226Ra standard	4.00	0.053	0.053	0.107	0.107
	4.6 Bq 226Ra standard	4.25	0.059	0.055	0.119	0.111
	4.6 Bq 226Ra standard	4.50	0.059	0.055	0.119	0.111
	4.6 Bq 226Ra standard	4.75	0.020	0.040	0.040	0.081
	4.6 Bq 226Ra standard	5.00	0.049	0.053	0.099	0.107
	4.6 Bq 226Ra standard	5.25	0.092	0.064	0.186	0.129
	4.6 Bq 226Ra standard	5.50	0.040	0.048	0.081	0.097
	4.6 Bq 226Ra standard	5.75	0.036	0.048	0.073	0.097
	4.6 Bq 226Ra standard	6.00	0.072	0.059	0.145	0.119
SO239_195-1	SO239-195 (2.5 cm nodule)	0.00	0.013	0.036	0.026	0.073
SO239_195-1	SO239-195 (2.5 cm nodule)	0.25	0.013	0.036	0.026	0.073
SO239_195-1	SO239-195 (2.5 cm nodule)	0.50	0.007	0.072	0.014	0.145
SO239_195-1	SO239-195 (2.5 cm nodule)	0.75	0.013	0.036	0.026	0.073
SO239_195-1	SO239-195 (2.5 cm nodule)	1.00	0.026	0.042	0.052	0.085
SO239_195-1	SO239-195 (2.5 cm nodule)	1.25	0.026	0.042	0.052	0.085
SO239_195-1	SO239-195 (2.5 cm nodule)	1.50	0.026	0.049	0.052	0.099
SO239_195-1	SO239-195 (2.5 cm nodule)	1.75	0.059	0.054	0.119	0.109
SO239_195-1	SO239-195 (2.5 cm nodule)	2.00	0.059	0.054	0.119	0.109
SO239_195-1	SO239-195 (2.5 cm nodule)	2.25	0.052	0.052	0.105	0.105
SO239_195-1	SO239-195 (2.5 cm nodule)	2.50	0.039	0.048	0.079	0.097
SO239_195-1	SO239-195 (2.5 cm nodule)	2.75	0.079	0.060	0.159	0.121
SO239_195-1	SO239-195 (2.5 cm nodule)	3.00	0.053	0.052	0.107	0.105
SO239_195-1	SO239-195 (2.5 cm nodule)	3.25	0.039	0.048	0.079	0.097
SO239_195-1	SO239-195 (2.5 cm nodule)	3.50	0.033	0.044	0.067	0.089
SO239_195-1	SO239-195 (2.5 cm nodule)	3.75	0.052	0.057	0.105	0.115
SO239_195-1	SO239-195 (2.5 cm nodule)	4.00	0.094	0.068	0.190	0.137
SO239_195-1	SO239-195 (2.5 cm nodule)	4.25	0.052	0.052	0.105	0.105
SO239_195-1	SO239-195 (2.5 cm nodule)	4.50	0.072	0.058	0.145	0.117
SO239_195-1	SO239-195 (2.5 cm nodule)	4.75	0.112	0.071	0.226	0.143
SO239_195-1	SO239-195 (2.5 cm nodule)	5.00	0.131	0.075	0.264	0.151
SO239_195-1	SO239-195 (2.5 cm nodule)	5.25	0.079	0.060	0.159	0.121
SO239_195-1	SO239-195 (2.5 cm nodule)	5.50	0.059	0.055	0.119	0.111
SO239_195-1	SO239-195 (2.5 cm nodule)	5.75	0.105	0.067	0.212	0.135
SO239_195-1	SO239-195 (2.5 cm nodule)	6.00	0.125	0.072	0.252	0.145
SO239_60-1	SO239-60 (4 cm nodule)	0.00	0.013	0.036	0.026	0.072
SO239_60-1	SO239-60 (4 cm nodule)	0.25	0.038	0.055	0.076	0.110
SO239_60-1	SO239-60 (4 cm nodule)	0.50	0.048	0.056	0.096	0.112
SO239_60-1	SO239-60 (4 cm nodule)	0.75	0.059	0.054	0.118	0.108
SO239_60-1	SO239-60 (4 cm nodule)	1.00	0.091	0.067	0.182	0.134
SO239_60-1	SO239-60 (4 cm nodule)	1.25	0.084	0.065	0.168	0.130
SO239_60-1	SO239-60 (4 cm nodule)	1.50	0.134	0.074	0.268	0.148
SO239_60-1	SO239-60 (4 cm nodule)	1.75	0.106	0.073	0.212	0.146
SO239_60-1	SO239-60 (4 cm nodule)	2.00	0.144	0.076	0.288	0.152
SO239_60-1	SO239-60 (4 cm nodule)	2.25	0.125	0.072	0.250	0.144
SO239_60-1	SO239-60 (4 cm nodule)	2.50	0.217	0.090	0.435	0.180
SO239_60-1	SO239-60 (4 cm nodule)	2.75	0.229	0.095	0.459	0.190
SO239_60-1	SO239-60 (4 cm nodule)	3.00	0.243	0.097	0.487	0.194
SO239_60-1	SO239-60 (4 cm nodule)	3.25	0.181	0.084	0.363	0.168
SO239_60-1	SO239-60 (4 cm nodule)	3.50	0.270	0.100	0.541	0.200
SO239_60-1	SO239-60 (4 cm nodule)	3.75	0.176	0.087	0.353	0.174
SO239_60-1	SO239-60 (4 cm nodule)	4.00	0.280	0.100	0.561	0.200
SO239_60-1	SO239-60 (4 cm nodule)	4.25	0.270	0.099	0.541	0.198
SO239_60-1	SO239-60 (4 cm nodule)	4.50	0.370	0.110	0.741	0.220
SO239_60-1	SO239-60 (4 cm nodule)	4.75	0.310	0.100	0.621	0.200
SO239_60-1	SO239-60 (4 cm nodule)	5.00	0.260	0.100	0.521	0.200
SO239_60-1	SO239-60 (4 cm nodule)	5.25	0.360	0.110	0.721	0.220
SO239_60-1	SO239-60 (4 cm nodule)	5.50	0.370	0.110	0.741	0.220
SO239_60-1	SO239-60 (4 cm nodule)	5.75	0.430	0.120	0.861	0.240
SO239_60-1	SO239-60 (4 cm nodule)	6.00	0.300	0.110	0.601	0.220
SO239_119-1	SO239-119 (7 cm nodule)	0.00	0.007	0.032	0.013	0.060
SO239_119-1	SO239-119 (7 cm nodule)	0.25	0.081	0.062	0.152	0.116
SO239_119-1	SO239-119 (7 cm nodule)	0.50	0.177	0.082	0.332	0.154
SO239_119-1	SO239-119 (7 cm nodule)	0.75	0.216	0.089	0.406	0.167
SO239_119-1	SO239-119 (7 cm nodule)	1.00	0.280	0.100	0.526	0.188
SO239_119-1	SO239-119 (7 cm nodule)	1.25	0.370	0.110	0.695	0.207
SO239_119-1	SO239-119 (7 cm nodule)	1.50	0.480	0.130	0.902	0.244
SO239_119-1	SO239-119 (7 cm nodule)	1.75	0.480	0.130	0.902	0.244
SO239_119-1	SO239-119 (7 cm nodule)	2.00	0.520	0.130	0.977	0.244
SO239_119-1	SO239-119 (7 cm nodule)	2.25	0.640	0.140	1.202	0.263
SO239_119-1	SO239-119 (7 cm nodule)	2.50	0.700	0.150	1.315	0.282
SO239_119-1	SO239-119 (7 cm nodule)	2.75	0.760	0.160	1.428	0.301
SO239_119-1	SO239-119 (7 cm nodule)	3.00	0.870	0.170	1.634	0.319
SO239_119-1	SO239-119 (7 cm nodule)	3.25	0.930	0.170	1.747	0.319
SO239_119-1	SO239-119 (7 cm nodule)	3.50	0.860	0.170	1.616	0.319
SO239_119-1	SO239-119 (7 cm nodule)	3.75	0.990	0.180	1.860	0.338
SO239_119-1	SO239-119 (7 cm nodule)	4.00	1.260	0.200	2.367	0.376
SO239_119-1	SO239-119 (7 cm nodule)	4.25	1.300	0.200	2.442	0.376
SO239_119-1	SO239-119 (7 cm nodule)	4.50	1.330	0.200	2.498	0.376
SO239_119-1	SO239-119 (7 cm nodule)	4.75	1.520	0.220	2.855	0.413
SO239_119-1	SO239-119 (7 cm nodule)	5.00	1.470	0.210	2.761	0.394
SO239_119-1	SO239-119 (7 cm nodule)	5.25	1.430	0.210	2.686	0.394
SO239_119-1	SO239-119 (7 cm nodule)	5.50	1.420	0.210	2.668	0.394
SO239_119-1	SO239-119 (7 cm nodule)	5.75	1.630	0.230	3.062	0.432
SO239_119-1	SO239-119 (7 cm nodule)	6.00	1.840	0.240	3.456	0.451
SO268/2_119-1	SO268-119 (10 cm nodule)	0.00	0.092	0.064	0.142	0.099
SO268/2_119-1	SO268-119 (10 cm nodule)	0.25	0.242	0.094	0.375	0.146
SO268/2_119-1	SO268-119 (10 cm nodule)	0.50	0.490	0.130	0.759	0.201
SO268/2_119-1	SO268-119 (10 cm nodule)	0.75	0.730	0.150	1.130	0.232
SO268/2_119-1	SO268-119 (10 cm nodule)	1.00	0.910	0.170	1.409	0.263
SO268/2_119-1	SO268-119 (10 cm nodule)	1.25	0.990	0.180	1.533	0.279
SO268/2_119-1	SO268-119 (10 cm nodule)	1.50	1.190	0.190	1.843	0.294
SO268/2_119-1	SO268-119 (10 cm nodule)	1.75	1.380	0.210	2.137	0.325
SO268/2_119-1	SO268-119 (10 cm nodule)	2.00	1.740	0.230	2.694	0.356
SO268/2_119-1	SO268-119 (10 cm nodule)	2.25	1.930	0.240	2.988	0.372
SO268/2_119-1	SO268-119 (10 cm nodule)	2.50	1.970	0.250	3.050	0.387
SO268/2_119-1	SO268-119 (10 cm nodule)	2.75	2.190	0.260	3.391	0.403
SO268/2_119-1	SO268-119 (10 cm nodule)	3.00	2.380	0.270	3.685	0.418
SO268/2_119-1	SO268-119 (10 cm nodule)	3.25	2.620	0.280	4.057	0.434
SO268/2_119-1	SO268-119 (10 cm nodule)	3.50	3.070	0.310	4.754	0.480
SO268/2_119-1	SO268-119 (10 cm nodule)	3.75	2.990	0.300	4.630	0.465
SO268/2_119-1	SO268-119 (10 cm nodule)	4.00	3.310	0.320	5.125	0.495
SO268/2_119-1	SO268-119 (10 cm nodule)	4.25	3.170	0.310	4.908	0.480
SO268/2_119-1	SO268-119 (10 cm nodule)	4.50	3.700	0.340	5.729	0.526
SO268/2_119-1	SO268-119 (10 cm nodule)	4.75	3.870	0.350	5.992	0.542
SO268/2_119-1	SO268-119 (10 cm nodule)	5.00	4.210	0.360	6.519	0.557
SO268/2_119-1	SO268-119 (10 cm nodule)	5.25	4.110	0.360	6.364	0.557
SO268/2_119-1	SO268-119 (10 cm nodule)	5.50	3.840	0.350	5.946	0.542
SO268/2_119-1	SO268-119 (10 cm nodule)	5.75	4.620	0.380	7.154	0.588
SO268/2_119-1	SO268-119 (10 cm nodule)	6.00	5.010	0.400	7.757	0.619