JAM_mon_BM 1 Bq/L
 37.7083N 141.2533E 
   52.000
2011/04/11  0.0 -9.9 10.1 
2011/04/15  0.0 -9.9  0.0
2011/04/19  0.0 -9.9  0.0
2011/04/29  0.0  0.0 12.0
2011/05/05  0.0 11.4 18.3
