Cs-137 in waters surrounding Taiwan from 2018 to 2021


The Fukushima accident released short-lived Cs-134 and longer-lived Cs-137 to the ocean. The amount, although substantial, is much less than that produced during the atomic bomb tests 60 yrs ago. Cs-134 and Cs-137 are anthropogenic radionuclides and soluble in seawater, hence, the radioactivity can be used as a tracer for special event or currents. Here we collected Cs-134 and Cs-137 samples in seawaters surrounding Taiwan including the Kuroshio, the northern South China Sea, the Taiwan Strait, and the southern East China Sea from 2018 to 2021. Most surface seawater samples were collected from boats using 20-L tanks, and a few samples were gathered from the shore. Non-surface seawater samples were taken from R/Vs Ocean Researcher I, II, and III with Niskin bottles mounted on a CTD rosette. All samples were determined in the Radian Monitor Center, Atomic Energy Council of Taiwan. Ammonium molybdophosphate (AMP) was used to pre-concentrated Radiocesium. Each 40-L (60-L) sample was counted for 200,000 s (120,000 s) using a high-purity germanium (HPGe) detector with lead shielding. The detection limits of 137Cs was 0.5 Bq m−3. The averaged surface Cs-137 activities was 1.18±0.25 Bq m-3, however, the activities of Cs-134 samples were all under detection limit. Complete data are archived, including sampling date, location, water depth, temperature, salinity, and Cs-137 activity; total sample amount is 577.

DOI https://doi.org/10.1594/PANGAEA.949281
Related Identifier References https://doi.org/10.1016/j.marpolbul.2022.114026
Related Identifier References https://doi.org/10.1038/s41598-021-01895-y
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.949281
Creator Huang, Ting-Hsuan ORCID logo; Lee, Ming-Ta; Huang, Wei-Jen ORCID logo; Lee, Ming-An; Jan, Sen; Yang, Yiing-Jang; Chen, Chen-Tung Arthur ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Atomic Energy Council https://doi.org/10.13039/501100005181 Crossref Funder ID 09P1700161 ; Ministry of Science and Technology https://doi.org/10.13039/501100004663 Crossref Funder ID MOST 111-2611-M-110-017
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 1731 data points
Discipline Earth System Research
Spatial Coverage (114.200W, 10.380S, 124.010E, 26.470N)
Temporal Coverage Begin 2018-01-03T00:00:00Z
Temporal Coverage End 2021-11-05T00:00:00Z