From: Model depiction of the atmospheric flows of radioactive cesium emitted from the Fukushima Daiichi Nuclear Power Station accident
Day (JST)
N
W
Nā+āW
2011/3/15
0.51
0.52
0.55
2011/3/20
0.57
0.50
2011/3/21
0.36
0.37
0.44
Average
0.48
0.46