東京都世田谷区深沢観測点　環境放射能モニタリング　　（参考：天然放射能） ※Be-7は半減期53日につき，１ヶ月貯留の降水降下物中濃度は意味を持たない。計測機器チェック用 降水降下物放射能　　大気浮遊塵放射能 　　　　　　　　　　　　　　　人工　　天然　　　人工　　　天然 年 月 降水量 処理水量 Cs-137 Be-7 Cs-137 K-40 Be-7 Cs-134 Cs-134 I-131 (mm) (L) (Bq/m2・月) (Bq/m3空気) keV = 661 477 661 1461 477 検出限界値ND < 5E-2 5E-1 1E-4 2E-3 1E-3 Year Mo preci ----------------------------------------------------------------------------- 2005 1 60 ND 26 ND ND LTD 2005 12 4 ND 2 ND ND 1E-3 2005 11 30 ND 5 ND 2E-3 3E-3 2005 10 207 ND 126 ND ND 2E-3 2005 9 156 ND 87 ND 1E-3 3E-3 2005 8 234 ND 80 ND ND 2E-4 2005 7 238 ND 57 ND 5E-4 ND 2005 6 137 ND 101 ND 5E-4 4E-3 2005 5 118 ND 165 ND ND ND 2005 4 123.4 ND 163 2005 3 60.9 ND 92 2005 2 49.8 ND 48 2005 1 60.7 ND 32 2004 12 69.3 ND 65 2004 11 91.6 ND 112 2004 10 681.0 ND 324 2004 9 178.8 ND 78 2004 8 67.7 ND 88 2004 7 33.5 ND 16 2004 6 122.4 ND 164 2004 5 146.2 ND 105 2004 4 75.5 ND 168 2004 3 132.3 ND 133 2004 2 26.5 ND 45 2004 1 6.3 ND 16 2003 12 35.2 ND 40 2003 11 251.1 ND 141 2003 10 157.7 ND 78 2003 9 124.5 ND 46 2003 8 374.6 ND 85 2003 7 152.3 ND 124 2003 6 81.8 ND 79 2003 5 161.5 ND 104 2003 4 118.3 ND 129 2003 3 156.2 ND 105 2003 2 52.4 ND 49 2002 1 109 ND 57 2002 12 85.8 ND 60 2002 11 21.8 ND 38 2002 10 170.1 ND 50 2002 9 275.6 ND 149 2002 8 268.8 ND 130 2002 7 129.6 ND 44 2002 6 180.9 ND 122 2002 5 114.4 ND 144 2002 4 68.2 ND 114 2002 3 90.1 ND 158 2002 2 24.2 ND 42 2002 1 103.2 ND 51 2001 12 31 ND 35 2001 11 125 ND 446 2001 10 283.5 ND 124 2001 9 249.6 ND 83 2001 8 226.9 ND 159 2001 7 26 ND 36 2001 6 99 ND 152 2001 5 187.7 ND 175 2001 4 58.5 ND 291 2001 3 94.8 ND 111 2001 2 28.2 ND 58 2001 1 134.1 ND 57 2000 12 0 ND 13 2000 11 118.9 ND 180 2000 10 134.3 ND 77 2000 9 209.6 ND 150 2000 8 89.9 ND 46 2000 7 260.8 ND 110 2000 6 196.1 ND 150 2000 5 78.3 ND 65 2000 4 111.7 ND 230 2000 3 107.6 ND 200 2000 2 2.2 ND 6 2000 1 73.7 ND 20 1999 12 5.6 ND 17 1999 11 99.9 ND 29 1999 10 94.1 ND 6 1999 9 84.5 ND 10 1999 8 263.9 ND 30 1999 7 230.5 ND 54 1999 6 191.1 ND 97 1999 5 118 ND 110 1999 4 204.9 ND 110 1999 3 154.5 ND 98 1999 2 33.7 ND 32 1999 1 25.3 ND 14 1998 12 54.3 ND 19 1998 11 10.2 ND 15 1998 10 156 ND 38 1998 9 274.1 ND 140 1998 8 172.6 ND 43 1998 7 155.4 ND 250 1998 6 147 ND 42 1998 5 152.3 ND 130 1998 4 183 ND 190 1998 3 64.7 ND 130 1998 2 150.5 ND 43 1998 1 100.4 ND 18 1997 12 48.7 ND 11 1997 11 104.3 ND 130 1997 10 17.1 ND 23 1997 9 258 ND 150 1997 8 108.4 ND 110 1997 7 180.3 ND 76 1997 6 176.2 ND 40 1997 5 145.4 ND 100 1997 4 143.4 ND 96 1997 3 113 ND 87 1997 2 30.4 ND 5 1997 1 28.9 ND 36 1996 12 52.9 ND 58 1996 11 87 ND 49 1996 10 66.8 ND 52 1996 9 328.6 ND 140 1996 8 34.4 ND 81 1996 7 300.3 ND 150 1996 6 42.4 ND 42 1996 5 141.1 ND 240 1996 4 124.3 ND 47 1996 3 92.5 ND 66 1996 2 53.7 ND 30 1996 1 17.2 ND 25 1995 12 1.1 ND 18 1995 11 53.6 ND 9 1995 10 90.6 ND 18 1995 9 152.9 ND 49 1995 8 127 ND 19 1995 7 192.3 ND 20 1995 6 204.8 ND 253 1995 5 226.3 ND 321 1995 4 109.5 ND 42 1995 3 175.6 ND 106 1995 2 28.8 ND 41 1995 1 39.3 ND 8 1994 12 24.6 ND 30 1994 11 51.9 ND 27 1994 10 62.7 ND 62 1994 9 254.8 ND 274 1994 8 230.9 ND 124 1994 7 62.5 ND 11 1994 6 152.6 ND 74 1994 5 152.5 ND 57 1994 4 54.2 ND 8 1994 3 117.3 ND 93 1994 2 83.2 ND 45 1994 1 49 ND 41 1993 12 67.7 ND 41 1993 11 172.6 ND 63 1993 10 164.4 ND 92 1993 9 147.2 ND 37 1993 8 394.5 ND 45 1993 7 358.2 ND 228 1993 6 190.8 ND 190 1993 5 57.4 ND 64 1993 4 45.7 ND 35 1993 3 73 ND 33 1993 2 57 ND 54 1993 1 119 ND 91 1992 12 77 ND 220 1992 11 155 ND 106 1992 10 313 ND 127 1992 9 103 ND 103 1992 8 19 ND 19 1992 7 89 ND 134 1992 6 249 ND 281 1992 5 152 ND 166 1992 4 171 ND 198 1992 3 202 ND 227 1992 2 4 ND 14 1992 1 69 ND 42 1991 12 45 ND 69 1991 11 111 ND 76 1991 10 532 ND 163 1991 9 461 ND 95 1991 8 216 ND 92 1991 7 55 ND 75 1991 6 89 ND 76 1991 5 57 ND 70 1991 4 96 ND 115 1991 3 147 ND 198 1991 2 69 ND 84 1991 1 50 ND 53 1990 12 33 ND 88 1990 11 219 ND 197 1990 10 142 ND 74 1990 9 311 ND 282 1990 8 116 ND 114 1990 7 71 ND 33 1990 6 67 ND 50 1990 5 66 ND 83 1990 4 130 ND 211 1990 3 89 ND 115 1990 2 109 ND 143 1990 1 84 ND 79 1989 12 28 ND 39 1989 11 55 ND 120 1989 10 198 ND 1989 9 114 ND 123 1989 8 404 207 1989 7 594 ND 174 1989 6 206 ND 148 1989 5 149 ND 419 1989 4 172 ND 210 1989 3 110.1 ND 188 1989 2 133.4 ND 172 1989 1 94 ND 1988 12 0 ND 1988 11 21 ND 59 1988 10 62.4 ND 86 1988 9 246.4 ND 193 1988 8 339.9 1988 7 174.5 ND 126 1988 6 229.6 ND 323 1988 5 124.2 ND 179 1988 4 127 ND 143 1988 3 187.4 ND 158 1988 2 18.3 1.4 33 1988 1 3.2 ND 53 1987 12 82.4 ND 49 1987 11 57.3 ND 51 1987 10 163.9 ND 164 1987 9 209.8 ND 191 1987 8 119.1 ND 62 1987 7 125.8 ND 165 1987 6 53.2 ND 268 1987 5 75.8 ND 1987 4 38.2 0.5 97 1987 3 96 1.2 269 1987 2 40 0.7 90 1987 1 67 0.3 44 1986 12 119 1.4 296 1986 11 26 0.1 81 1986 10 91 0.2 63 1986 9 170 0.5 166 1986 8 187 ND 74 1986 7 41 1.0 67 1986 6 106 3.1 89 1986 5 217 156.1 1986 4 99 ND 125 1986 3 207 ND 100 1986 2 36 0.2 16 1986 1 19 ND 23 1985 12 16 ND 33 1985 11 88 ND 59 1985 10 108 ND 111 1985 9 104 ND 93 1985 8 193 ND 44 1985 7 160 ND 44 1985 6 399 ND 229 1985 5 97 ND 44 1985 4 221 ND 78 1985 3 143 ND 1985 2 160 ND 89 1985 1 5 ND 11 1984 12 68 ND 22 1984 11 50 ND 56 1984 10 83 ND 18 1984 9 59 ND 41 1984 8 35 ND 17 1984 7 112 ND 44 1984 6 194 ND 56 1984 5 65 0.3 59 1984 4 66 0.3 74 1984 3 76 0.3 63 1984 2 63 ND 48 1984 1 57 ND 1983 12 7 0.3 11 1983 11 42 0.1 96 1983 10 131 ND 159 1983 9 247 ND 74 1983 8 210 0.2 24 1983 7 124 ND 174 1983 6 177 0.2 37 1983 5 121 0.6 237 1983 4 126 ND 1983 3 108 0.2 93 1983 2 60 0.4 22 1983 1 27 0.1 26 1982 12 19 0.1 70 1982 11 157 0.3 81 1982 10 153 ND 178 1982 9 442 ND 59 1982 8 165 ND 96 1982 7 151 0.5 122 1982 6 179 0.5 126 1982 5 80 0.8 137 1982 4 160 1.7 181 1982 3 70 0.5 107 1982 2 42 1.1 74 1982 1 21 0.4 28 1981 12 6 ND 44 1981 11 98 ND 74 1981 10 309 0.5 141 1981 9 135 2.8 159 1981 8 135 2.8 130 1981 7 200 2.5 85