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NUSC
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UPDATE2026-04-12
Taiwan and Surrounding Seawater Monitoring (NUSC, OAC, MOA)
The light is dark green, indicating Normal
Northwestern
Waters
Waters
(Safe, Within
normal range)
normal range)
The light is dark green, indicating Normal
Western
Waters
Waters
(Safe, Within
normal range)
normal range)
The light is dark green, indicating Normal
Southwestern
Waters
Waters
(Safe, Within
normal range)
normal range)
The light is dark green, indicating Normal
Northeastern
Waters
Waters
(Safe, Within
normal range)
normal range)
The light is dark green, indicating Normal
Southeastern
Waters
Waters
(Safe, Within
normal range)
normal range)
Total
2017–Present
2017–Present
2026
Cases To Date
Passed
Failed
Seawater (Cesium)
3,614
11
11
0
Seawater (Tritium)
42
42
0
Seawater (Sr, Co, Ru, Sb)
0
0
0
Total
2017–Present
2017–Present
2026
Cases To Date
Within
Background Level
Background Level
> Background
Level
Level
Marine life and Sediments (Cs, T, C, Sr, I)
1,983
29
29
0
Fisheries Monitoring (FA)
Total
2011.03.15–Present
2011.03.15–Present
2026
Cases To Date
Passed
Failed
Offshore Fishery Products (Cesium)
12,653
832
832
0
High Seas Fishery Products (Cesium)
4
4
0
Total
2023–Present
2023–Present
2026
Cases To Date
Not Detected
> MDA
Fishery Products (Tritium)
1,708
168
168
0
Foods Imported from Japan Monitoring (FDA)
Total
2011.03.15–Present
2011.03.15–Present
Cumulative Batches
(2026)
(2026)
Passed
Failed
Fishery Products (Cesium)
73,135
581
73,135
0
Non-Fishery Products (Cesium)
202,969
14
14
0
Total
2023–Present
2023–Present
Cases To Date
(2026)
(2026)
Not Detected
> MDA
Fishery Products (Tritium)
500
0
500
0
Ecological Monitoring (NAMR)
Total
2022.01.01–Present
2022.01.01–Present
2026
Cases To Date
Within
Background Level
Background Level
> Background
Level
Level
Ecological (Cesium)
2,462
14
14
0
Ecological (Tritium)
69
69
0
Cesium According to international standards, Iodine-131, Cesium-134, and Cesium-137 are the primary radionuclides monitored as indicators of radiation contamination.
TritiumTritium exists in the natural environment and is complex to detect. It primarily serves as a reference indicator for long-term changes in baseline environmental levels.
MDAThe Minimum Detectable Amount (MDA) represents the detection limit of the instrument. A result of “Not Detected” indicates the value is below MDA.
Ecological MonitoringEcological sampling is carried out quarterly.
This dashboard presents monitoring data collected through inter-ministerial collaboration. It includes radiation levels in seawater monitored by the Nuclear Safety Commission, the Ocean Affairs Council, and the Ministry of Agriculture; radiation levels in fishery products monitored by the Fisheries Agency; radiation levels in imported Japanese food monitored by the Food and Drug Administration;and radiation levels in ecological samples monitored by the National Academy of Marine Research.There have been no abnormal cases since January 1, 2017.