Temporal Variation of Radiocaesium Distribution at a Coastal Region Within 300 Km of Fukushima

Table S1 Radiocaesium in surface water in the Pacific Ocean. Uncertainty shows one sigma of counting error plus uncertainty of calibration standard. Radioactivities in this table are decay corrected at the time of sampling.

Station / Latitude / Longitude / Date / 134Cs
Bq m-3 / Uncer.
Bq m-3 / 137Cs
Bq m-3 / Uncer.
Bq m-3 / Ref
CKKim2012-13 / 33.17ºN / 126.85ºE / 20110326 / BD / ± / NA / BD / ± / NA / e
Kamenik2013-G1 / 13.27ºN / 144.64ºE / 20110326 / BD / ± / NA / 1.4 / ± / 0.1 / f
CKKim2012-12 / 33.40ºN / 127.00ºE / 20110327 / BD / ± / NA / BD / ± / NA / e
CKKim2012-10 / 34.73ºN / 127.73ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-11 / 34.30ºN / 126.70ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-15 / 34.80ºN / 126.37ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-16 / 34.68ºN / 125.45ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-17 / 35.82ºN / 126.47ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-19 / 37.32ºN / 126.63ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-21 / 37.23ºN / 126.18ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-22 / 37.03ºN / 125.67ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-6 / 37.90ºN / 128.68ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-7 / 35.10ºN / 129.03ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-8 / 35.07ºN / 129.07ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
CKKim2012-9 / 34.83ºN / 128.43ºE / 20110329 / BD / ± / NA / BD / ± / NA / e
Kamenik2013-M1 / 19.69ºN / 161.39ºW / 20110329 / BD / ± / NA / 1.4 / ± / 0.1 / f
CKKim2012-14 / 33.50ºN / 126.43ºE / 20110330 / BD / ± / NA / BD / ± / NA / e
CKKim2012-3 / 37.48ºN / 130.90ºE / 20110330 / BD / ± / NA / BD / ± / NA / e
CKKim2012-18 / 37.15ºN / 126.33ºE / 20110331 / BD / ± / NA / BD / ± / NA / e
VOS11-001 / 35.68ºN / 143.77ºE / 20110331 / 507.3 / ± / 32.5 / 545.8 / ± / 27.5 / a
VOS11-043 / 34.95ºN / 143.86ºE / 20110331 / 131.9 / ± / 9.3 / 146.3 / ± / 7.7 / a
VOS11-003 / 36.60ºN / 147.60ºE / 20110401 / 1000.6 / ± / 71.2 / 1084.5 / ± / 58.3 / a
VOS11-005 / 37.42ºN / 151.08ºE / 20110401 / 32.4 / ± / 2.6 / 34.7 / ± / 2.0 / b
VOS11-044 / 35.07ºN / 146.44ºE / 20110401 / 34.0 / ± / 2.6 / 36.6 / ± / 2.1 / a
VOS11-045 / 35.29ºN / 151.41ºE / 20110401 / 33.4 / ± / 2.7 / 40.3 / ± / 2.3 / b
VOS11-007 / 38.18ºN / 154.97ºE / 20110402 / 17.7 / ± / 1.6 / 21.3 / ± / 1.3 / b
VOS11-009 / 38.08ºN / 158.58ºE / 20110402 / 1.9 / ± / 0.5 / 3.5 / ± / 0.4 / b
VOS11-046 / 35.12ºN / 154.14ºE / 20110402 / 9.2 / ± / 1.0 / 11.1 / ± / 0.8 / a
VOS11-047 / 34.89ºN / 158.76ºE / 20110402 / 6.6 / ± / 0.8 / 6.5 / ± / 0.5 / a
VOS11-048 / 34.76ºN / 161.27ºE / 20110402 / 2.6 / ± / 0.5 / 3.4 / ± / 0.4 / a
VOS11-085 / 33.85ºN / 141.31ºE / 20110402 / BD / ± / NA / 1.6 / ± / 0.2 / a
Kamenik2013-G2 / 13.39ºN / 144.63ºE / 20110402 / BD / ± / NA / 1.4 / ± / 0.1 / f
VOS11-011 / 37.38ºN / 162.40ºE / 20110403 / 2.0 / ± / 0.4 / 3.4 / ± / 0.3 / b
VOS11-013 / 36.67ºN / 166.15ºE / 20110403 / 2.2 / ± / 0.4 / 3.9 / ± / 0.3 / b
VOS11-049 / 34.09ºN / 173.28ºE / 20110403 / 3.4 / ± / 0.6 / 6.1 / ± / 0.5 / a
VOS11-086 / 34.33ºN / 144.68ºE / 20110403 / 158.2 / ± / 10.7 / 180.8 / ± / 9.4 / a
VOS11-087 / 34.51ºN / 148.40ºE / 20110403 / 98.4 / ± / 6.6 / 117.5 / ± / 6.0 / a
Kamenik2013-M2 / 23.99ºN / 171.63ºW / 20110403 / BD / ± / NA / 1.5 / ± / 0.1 / f
VOS11-015 / 35.28ºN / 173.53ºE / 20110404 / 2.1 / ± / 0.4 / 3.8 / ± / 0.3 / b
VOS11-050 / 35.09ºN / 173.38ºE / 20110404 / BD / ± / NA / 2.4 / ± / 0.3 / b
VOS11-088 / 34.66ºN / 150.97ºE / 20110404 / 73.3 / ± / 5.6 / 86.8 / ± / 4.9 / b
VOS11-089 / 34.81ºN / 153.51ºE / 20110404 / 10.2 / ± / 1.1 / 12.5 / ± / 0.8 / a
VOS11-090 / 34.98ºN / 156.16ºE / 20110404 / 2.7 / ± / 0.7 / 6.0 / ± / 0.6 / a
VOS11-017 / 35.13ºN / 179.67ºW / 20110405 / BD / ± / NA / 2.1 / ± / 0.2 / b
VOS11-051 / 33.85ºN / 179.69ºE / 20110405 / BD / ± / NA / 2.0 / ± / 0.2 / b
VOS11-091 / 35.15ºN / 158.93ºE / 20110405 / 3.3 / ± / 0.6 / 7.3 / ± / 0.6 / a
VOS11-092 / 35.32ºN / 161.70ºE / 20110405 / 3.4 / ± / 0.6 / 5.1 / ± / 0.4 / a
CKKim2012-1 / 37.55ºN / 131.87ºE / 20110406 / BD / ± / NA / BD / ± / NA / e
CKKim2012-2 / 37.55ºN / 131.25ºE / 20110406 / BD / ± / NA / BD / ± / NA / e
CKKim2012-4 / 37.55ºN / 130.00ºE / 20110406 / BD / ± / NA / BD / ± / NA / e
CKKim2012-5 / 37.55ºN / 129.75ºE / 20110406 / BD / ± / NA / BD / ± / NA / e
VOS11-019 / 34.08ºN / 173.87ºW / 20110406 / BD / ± / NA / 1.8 / ± / 0.2 / b
VOS11-093 / 35.66ºN / 167.30ºE / 20110406 / 3.4 / ± / 0.6 / 4.7 / ± / 0.4 / b
VOS11-094 / 35.99ºN / 173.05ºE / 20110406 / BD / ± / NA / 2.2 / ± / 0.2 / b
VOS11-095 / 36.35ºN / 178.99ºE / 20110406 / BD / ± / NA / 2.2 / ± / 0.4 / a
VOS11-021 / 41.12ºN / 167.75ºW / 20110407 / BD / ± / NA / 1.7 / ± / 0.2 / b
VOS11-052 / 33.91ºN / 173.89ºW / 20110407 / BD / ± / NA / 1.8 / ± / 0.2 / b
VOS11-053 / 33.96ºN / 168.73ºW / 20110407 / BD / ± / NA / 1.5 / ± / 0.2 / b
VOS11-096 / 36.70ºN / 174.98ºW / 20110407 / BD / ± / NA / 1.8 / ± / 0.2 / b
VOS11-023 / 42.33ºN / 159.88ºW / 20110408 / BD / ± / NA / 1.8 / ± / 0.2 / b
VOS11-054 / 33.86ºN / 161.73ºW / 20110408 / 1.0 / ± / 0.3 / 2.3 / ± / 0.2 / b
VOS11-097 / 36.99ºN / 169.34ºW / 20110408 / BD / ± / NA / 1.6 / ± / 0.2 / b
VOS #1 / 35.06 ºN / 140.67 ºE / 20110409 / 50.1 / ± / 4.6 / 54.6 / ± / 3.7 / d
VOS #2 / 35.58ºN / 140.77ºE / 20110409 / 4.1 / ± / 0.6 / 7.0 / ± / 0.6 / d
VOS #3 / 35.11ºN / 140.85ºE / 20110409 / 4.3 / ± / 0.8 / 5.4 / ± / 1.4 / d
VOS U02 / 35.53ºN / 141.27ºE / 20110409 / 18.5 / ± / 1.2 / 15.9 / ± / 1.0 / d
CKKim2012-107-07 / 38.22ºN / 130.00ºE / 20110409 / BD / ± / NA / BD / ± / NA / e
VOS11-025 / 43.00ºN / 151.95ºW / 20110409 / BD / ± / NA / 1.7 / ± / 0.2 / b
VOS11-055 / 33.46ºN / 154.15ºW / 20110409 / BD / ± / NA / 1.4 / ± / 0.2 / b
VOS11-098 / 36.84ºN / 163.23ºW / 20110409 / BD / ± / NA / 1.9 / ± / 0.2 / b
Kamenik2013-M3 / 28.83ºN / 176.81ºW / 20110409 / BD / ± / NA / 1.4 / ± / 0.1 / f
VOS U03 / 35.47 ºN / 141.54ºE / 20110410 / 4.8 / ± / 0.6 / 6.7 / ± / 0.6 / d
VOS U04 / 35.41ºN / 141.82ºE / 20110410 / 0.7 / ± / 0.3 / 0.5 / ± / 0.2 / d
VOS T02 / 35.75ºN / 141.33ºE / 20110410 / 27.3 / ± / 1.8 / 30.1 / ± / 1.8 / d
VOS T03 / 35.69ºN / 141.61ºE / 20110410 / 3.3 / ± / 0.8 / 5.3 / ± / 0.7 / d
CKKim2012-106-02 / 37.90ºN / 128.88ºE / 20110410 / BD / ± / NA / 1.2 / ± / 0.1 / e
CKKim2012-106-05 / 37.90ºN / 129.37ºE / 20110410 / BD / ± / NA / 1.8 / ± / 0.5 / e
VOS11-027 / 43.62ºN / 143.57ºW / 20110410 / BD / ± / NA / 2.2 / ± / 0.2 / b
VOS11-056 / 32.52ºN / 146.59ºW / 20110410 / BD / ± / NA / 1.7 / ± / 0.2 / b
VOS11-099 / 36.50ºN / 157.55ºW / 20110410 / BD / ± / NA / 2.1 / ± / 0.2 / b
VOS11-100 / 35.88ºN / 151.92ºW / 20110410 / BD / ± / NA / 1.7 / ± / 0.2 / b
VOS11-125 / 33.29ºN / 142.20ºE / 20110410 / 3.1 / ± / 0.6 / 3.5 / ± / 0.4 / b
CKKim2012-105-11 / 37.55ºN / 131.25ºE / 20110411 / BD / ± / NA / 1.5 / ± / 0.1 / e
VOS T04 / 35.64ºN / 141.88ºE / 20110411 / 6.0 / ± / 0.8 / 7.2 / ± / 0.6 / d
VOS T05 / 35.59ºN / 142.14ºE / 20110411 / 6.7 / ± / 0.8 / 9.0 / ± / 0.7 / d
VOS11-029 / 38.18ºN / 134.97ºW / 20110411 / BD / ± / NA / 1.4 / ± / 0.2 / b
VOS11-057 / 31.32ºN / 140.20ºW / 20110411 / BD / ± / NA / 1.8 / ± / 0.2 / b
VOS11-101 / 34.97ºN / 146.43ºW / 20110411 / BD / ± / NA / 1.9 / ± / 0.2 / b
VOS11-127 / 35.36ºN / 147.57ºE / 20110411 / 2.2 / ± / 0.5 / 3.3 / ± / 0.3 / b
CKKim2012-104-04 / 37.05ºN / 129.50ºE / 20110412 / BD / ± / NA / 1.3 / ± / 0.2 / e
CKKim2012-307-10 / 36.92ºN / 124.37ºE / 20110412 / BD / ± / NA / 1.4 / ± / 0.1 / e
CKKim2012-308-01 / 36.33ºN / 126.23ºE / 20110412 / BD / ± / NA / BD / ± / NA / e
VOS11-102 / 33.92ºN / 141.12ºW / 20110412 / BD / ± / NA / 1.9 / ± / 0.2 / b
VOS11-103 / 32.50ºN / 135.86ºW / 20110412 / BD / ± / NA / 1.6 / ± / 0.2 / b
VOS11-129 / 39.01ºN / 152.70ºE / 20110412 / 1.8 / ± / 0.4 / 3.5 / ± / 0.3 / b
VOS11-058 / 28.94ºN / 130.73ºW / 20110413 / BD / ± / NA / 1.4 / ± / 0.2 / b
VOS11-059 / 27.66ºN / 126.44ºW / 20110413 / BD / ± / NA / 1.9 / ± / 0.2 / b
VOS11-104 / 31.02ºN / 130.83ºW / 20110413 / BD / ± / NA / 2.2 / ± / 0.2 / b
VOS11-131 / 42.20ºN / 157.80ºE / 20110413 / 10.1 / ± / 1.4 / 16.7 / ± / 1.2 / b
CKKim2012-103-11 / 36.50ºN / 131.23ºE / 20110414 / BD / ± / NA / 1.5 / ± / 0.1 / e
CKKim2012-209-08 / 35.52ºN / 130.28ºE / 20110414 / BD / ± / NA / BD / ± / NA / e
CKKim2012-309-10 / 35.85ºN / 124.38ºE / 20110414 / BD / ± / NA / 1.9 / ± / 0.2 / e
MR1103-02 / 36.16ºN / 142.03ºE / 20110414 / 6.0 / ± / 1.0 / 9.0 / ± / 1.0 / c
MR1103-03 / 37.09ºN / 142.72ºE / 20110414 / 109.0 / ± / 3.0 / 117.0 / ± / 4.0 / c
MR1103-04 / 37.86ºN / 143.31ºE / 20110414 / 273.0 / ± / 4.0 / 284.0 / ± / 5.0 / c
VOS11-060 / 25.42ºN / 120.36ºW / 20110414 / BD / ± / NA / 1.5 / ± / 0.2 / b
VOS11-105 / 29.24ºN / 126.05ºW / 20110414 / BD / ± / NA / 1.8 / ± / 0.2 / b
VOS11-133 / 44.80ºN / 163.82ºE / 20110414 / 2.8 / ± / 0.7 / 3.1 / ± / 0.4 / b
CKKim2012-312-02 / 34.00ºN / 126.10ºE / 20110415 / BD / ± / NA / 1.7 / ± / 0.2 / e
MR1103-05 / 38.21ºN / 143.79ºE / 20110415 / 145.0 / ± / 4.0 / 148.0 / ± / 5.0 / c
Kamenik2013-M4 / 32.90ºN / 163.82ºW / 20110415 / BD / ± / NA / 1.7 / ± / 0.2 / f
MR1103-06 / 38.11ºN / 143.08ºE / 20110416 / 172.0 / ± / 4.0 / 174.0 / ± / 5.0 / c
MR1103-07 / 38.99ºN / 145.78ºE / 20110416 / 53.0 / ± / 2.0 / 61.0 / ± / 3.0 / c
VOS11-137 / 46.25ºN / 177.01ºE / 20110416 / 2.3 / ± / 0.6 / 2.7 / ± / 0.4 / b
VOS11-141 / 46.23ºN / 169.31ºW / 20110416 / 2.4 / ± / 0.5 / 3.4 / ± / 0.3 / b
CKKim2012-102-04 / 36.08ºN / 129.62ºE / 20110417 / BD / ± / NA / 1.8 / ± / 0.2 / e
CKKim2012-311-10 / 34.72ºN / 124.38ºE / 20110417 / BD / ± / NA / 2.6 / ± / 0.3 / e
MR1103-09 / 40.96ºN / 150.87ºE / 20110417 / 67.0 / ± / 2.0 / 72.0 / ± / 3.0 / c
MR1103-10 / 41.96ºN / 152.46ºE / 20110417 / 17.0 / ± / 2.0 / 19.0 / ± / 2.0 / c
MR1103-11 / 42.97ºN / 154.14ºE / 20110417 / 13.0 / ± / 2.0 / 14.0 / ± / 1.0 / c
MR1103-12 / 43.99ºN / 154.99ºE / 20110417 / 41.0 / ± / 2.0 / 43.0 / ± / 3.0 / c
Kamenik2013-G3 / 13.36ºN / 144.62ºE / 20110417 / BD / ± / NA / 1.2 / ± / 0.1 / f
Kamenik2013-M5 / 33.65ºN / 159.43ºW / 20110417 / BD / ± / NA / 1.6 / ± / 0.2 / f
CKKim2012-208-01 / 35.48ºN / 129.45ºE / 20110418 / BD / ± / NA / 1.5 / ± / 0.2 / e
CKKim2012-310-03 / 35.33ºN / 125.83ºE / 20110418 / BD / ± / NA / BD / ± / NA / e
MR1103-13 / 44.96ºN / 157.05ºE / 20110418 / 18.0 / ± / 1.0 / 21.0 / ± / 2.0 / c
MR1103-14 / 45.97ºN / 158.50ºE / 20110418 / 14.0 / ± / 2.0 / 16.0 / ± / 2.0 / c
VOS11-143 / 46.23ºN / 162.05ºW / 20110418 / 2.7 / ± / 0.6 / 3.0 / ± / 0.4 / b
Kamenik2013-M6 / 31.95ºN / 156.79ºW / 20110419 / BD / ± / NA / 1.8 / ± / 0.1 / f
MR1103-15-01 / 47.00ºN / 160.00ºE / 20110421 / 8.0 / ± / 1.0 / 9.0 / ± / 1.0 / c
MR1103-15-02 / 47.00ºN / 160.00ºE / 20110421 / 10.0 / ± / 1.0 / 7.0 / ± / 1.0 / c
MR1103-15-11 / 47.00ºN / 160.00ºE / 20110421 / 8.0 / ± / 1.0 / 7.0 / ± / 2.0 / c
MR1103-15-12 / 47.00ºN / 160.00ºE / 20110421 / 5.0 / ± / 1.0 / 10.0 / ± / 1.0 / c
VOS11-165 / 30.07ºN / 131.81ºE / 20110421 / BD / ± / NA / 1.7 / ± / 0.2 / b
VOS11-166 / 27.16ºN / 131.24ºE / 20110422 / BD / ± / NA / 1.5 / ± / 0.2 / b
VOS11-167 / 24.23ºN / 130.48ºE / 20110422 / BD / ± / NA / 1.6 / ± / 0.3 / b
Kamenik2013-G4 / 13.46ºN / 144.60ºE / 20110423 / BD / ± / NA / 1.4 / ± / 0.1 / f
Karase-1rgs / 42.35ºN / 133.63ºE / 20110424 / BD / ± / NA / 1.7 / ± / NA / g
Karase-2rgs / 41.83ºN / 136.58ºE / 20110424 / 0.2 / ± / NA / 1.6 / ± / NA / g
MR1103-16 / 38.08ºN / 146.42ºE / 20110426 / 48.0 / ± / 2.0 / 53.0 / ± / 2.0 / c
MR1103-17 / 37.00ºN / 146.05ºE / 20110426 / 67.0 / ± / 2.0 / 67.0 / ± / 2.0 / c
MR1103-18 / 36.02ºN / 145.77ºE / 20110426 / 5.0 / ± / 1.0 / 9.0 / ± / 1.0 / c
MR1103-19 / 35.00ºN / 145.40ºE / 20110426 / 4.0 / ± / 1.0 / 5.0 / ± / 1.0 / c
TA001_KT1106-3 / 34.93ºN / 140.87ºE / 20110426 / 3.1 / ± / 0.9 / 4.6 / ± / 0.7 / d
TA022_KT1106-4 / 35.02ºN / 140.95ºE / 20110426 / BD / ± / 0.0 / 1.6 / ± / 0.3 / d
TA023_KT1106-2 / 34.87ºN / 139.90ºE / 20110426 / 8.8 / ± / 0.7 / 10.5 / ± / 0.8 / d
TA024_KT1106-1 / 35.25ºN / 139.77ºE / 20110426 / 160.1 / ± / 9.8 / 159.5 / ± / 9.8 / d
MR1103-20 / 34.04ºN / 145.12ºE / 20110427 / 9.0 / ± / 1.0 / 9.0 / ± / 1.0 / c
MR1103-21 / 33.02ºN / 144.78ºE / 20110427 / 13.0 / ± / 1.0 / 17.0 / ± / 1.0 / c
MR1103-22 / 32.47ºN / 144.50ºE / 20110427 / 56.0 / ± / 2.0 / 52.0 / ± / 2.0 / c
TA002_KT1106-5 / 35.55ºN / 141.80ºE / 20110427 / 1.9 / ± / 0.5 / 3.7 / ± / 0.5 / d
TA003_KT1106-6 / 36.00ºN / 140.83ºE / 20110427 / 43.3 / ± / 3.0 / 41.1 / ± / 2.9 / d
CKKim2012-206-01 / 34.60ºN / 128.60ºE / 20110428 / BD / ± / NA / BD / ± / NA / e
CKKim2012-207-03 / 34.90ºN / 129.25ºE / 20110428 / BD / ± / NA / BD / ± / NA / e
MR1103-23 / 31.03ºN / 144.82ºE / 20110428 / 6.0 / ± / 1.0 / 7.0 / ± / 1.0 / c
MR1103-25-1 / 30.00ºN / 145.00ºE / 20110428 / 14.0 / ± / 1.0 / 18.0 / ± / 1.0 / c
MR1103-25-2 / 30.00ºN / 145.00ºE / 20110428 / 3.0 / ± / 1.0 / 5.0 / ± / 1.0 / c
Karase-3rgs / 39.55ºN / 146.55ºE / 20110428 / 21.0 / ± / NA / 24.0 / ± / NA / g
TA004_KT1106-7 / 36.03ºN / 141.13ºE / 20110428 / 116.0 / ± / 7.2 / 112.8 / ± / 7.1 / d
TA005_KT1106-8 / 36.52ºN / 141.87ºE / 20110428 / 1.8 / ± / 0.3 / 3.4 / ± / 0.3 / d
CKKim2012-204-02 / 34.23ºN / 127.58ºE / 20110429 / BD / ± / NA / 1.9 / ± / 0.2 / e
CKKim2012-205-05 / 33.62ºN / 128.15ºE / 20110429 / BD / ± / NA / 1.5 / ± / 0.2 / e
TA006_KT1106-9 / 37.18ºN / 142.67ºE / 20110429 / 110.1 / ± / 7.7 / 121.9 / ± / 8.3 / d
TA009_KT1106-11 / 38.40ºN / 142.83ºE / 20110429 / 213.5 / ± / 13.2 / 190.0 / ± / 12.0 / d
TA021_KT1106-10 / 38.15ºN / 143.03ºE / 20110429 / 252.0 / ± / 14.9 / 249.6 / ± / 14.8 / d
Karase-4rgs / 43.40ºN / 146.55ºE / 20110430 / 1.2 / ± / NA / 2.2 / ± / NA / g
TA013_KT1106-13 / 38.27ºN / 143.48ºE / 20110430 / 114.7 / ± / 7.4 / 114.0 / ± / 7.9 / d