ページ番号：34771
掲載日：2024年3月25日
ここから本文です。
柴山沼（しばやまぬま）
調査結果(主な項目)
| 年度 | pH 夏季 | pH 冬季 | DO[mg/L]夏季 | DO[mg/L]冬季 | COD[mg/L]夏季 | COD[mg/L]冬季 | SS[mg/L]夏季 | SS[mg/L]冬季 | 全窒素[mg/L]夏季 | 全窒素[mg/L]冬季 | 全りん[mg/L]夏季 | 全りん[mg/L]冬季 | クロロフィルa[μg/L]夏季 | クロロフィルa[μg/L]冬季 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 昭56 | 7.56 | 7.3 | 7.9 | 12.2 | 4.9 | 1.5 | 32 | 4 | 2.06 | 3.31 | 0.06 | 0.01 | 6.71 | 1.59 |
| 昭57 | 8 | 7.5 | 5.8 | 11.1 | 3 | 2 | 3 | 5 | 2.52 | 4.16 | 0.02 | 0.01 | 3.05 | 2.62 |
| 昭58 | 7.5 | 7.9 | 7.9 | 8.9 | 3.5 | 2.2 | 5 | 4 | 2.22 | 3.95 | 0.02 | 0.02 | 6.46 | 6.44 |
| 昭59 | 7.5 | 7.4 | 9.2 | 11 | 2.9 | 3.5 | 3 | 7 | 2.23 | 3.54 | 0.14 | 0.02 | 3.7 | 0.6 |
| 昭60 | 8 | 7 | 9 | 11.1 | 2.1 | 2.5 | 2 | 5 | 2.31 | 2.55 | 0.21 | 0.03 | 1.41 | 1.24 |
| 昭61 | 8.1 | 7.4 | 9.3 | 12.5 | 3.6 | 4.4 | 13 | 1 | 2.68 | 2.35 | 0.016 | 0.014 | 3.82 | 0.64 |
| 昭62 | 7.6 | 7.5 | 9.1 | 11.4 | 4.4 | 2.8 | 5 | 4 | 2.05 | 2.56 | 0.046 | 0.04 | 14.1 | 4.37 |
| 昭63 | 8.5 | 7.8 | 10.1 | 12.5 | 5.3 | 3.1 | 6 | 5 | 3.38 | 2.55 | 0.08 | 0.022 | 22.3 | 6.8 |
| 平元 | 8.7 | 7.4 | 9.4 | 11.6 | 4.2 | 4.1 | 3 | 5 | 4.17 | 2.93 | 0.031 | 0.013 | 4.6 | 10.2 |
| 平2 | 8.3 | 7.7 | 10.1 | 12.3 | 4.1 | 2.2 | 4 | 3 | 1.58 | 3.36 | 0.023 | 0.021 | 26 | 4 |
| 平3 | 8.2 | 7.6 | 10.4 | 11.4 | 3 | 2.6 | 2 | 4 | 2.13 | 2.66 | 0.02 | 0.012 | 8.2 | 7.7 |
| 平4 | 8.1 | 7.9 | 9 | 11.7 | 3.1 | 2.9 | 3 | 10 | 2.16 | 2.42 | 0.022 | 0.032 | 10.9 | 13.6 |
| 平5 | 8 | 7.8 | 10.2 | 12.9 | 3.5 | 2.7 | 6 | 6 | 2.67 | 2.01 | 0.026 | 0.018 | 17 | 4.5 |
| 平6 | 8.5 | 7.7 | 12.2 | 12.2 | 5.5 | 3.8 | 6 | 7 | 1.8 | 1.29 | 0.027 | 0.02 | 13.8 | 7.3 |
| 平7 | 7.3 | 7.8 | 10 | 7.6 | 4.1 | 3.6 | 1 | 7 | 2 | 1.2 | 0.025 | 0.024 | 73 | 10 |
| 平8 | 9.7 | 7.5 | 17.1 | 12.8 | 6.7 | 2.7 | 4 | 8 | 1.3 | 1.5 | 0.049 | 0.026 | 41 | 7 |
| 平9 | 8.7 | 7.7 | 14.4 | 14.2 | 5.2 | 2.8 | 3 | 4 | 2.07 | 2.83 | 0.029 | 0.598 | 24 | 7 |
| 平10 | 7.7 | 7.6 | 9.6 | 12.4 | 4.3 | 3.3 | 5 | 5 | 2.88 | 3.06 | 0.039 | 0.38 | 27.9 | 10 |
| 平11 | 8.4 | - | 9.9 | - | 5.5 | - | 6 | - | 2.5 | - | 0.04 | - | 35 | - |
| 平12 | 7.5 | 7.6 | 11 | 12 | 4.5 | 2.2 | 4.2 | 5.5 | 2.2 | 2.2 | 0.03 | 0.02 | 27 | 7 |
| 平13 | 8.1 | 7.8 | 10 | 12 | 4.5 | 3.2 | 5 | 5 | 1.5 | 3.2 | 0.039 | 0.033 | 8 | 21 |
| 平14 | 7.8 | 7.9 | 10 | 12 | 5.4 | 3.6 | 4 | 4 | 2.4 | 2.3 | 0.031 | 0.023 | 17 | 15 |
| 平15 | 7.4 | 7.8 | 12.2 | 13.3 | 4.1 | 3.5 | 6 | 8 | 0.27 | 2.1 | 0.035 | 0.016 | 38 | 15 |
| 平16 | 7.5 | 7.9 | 9.8 | 13 | 4.8 | 3.4 | 5.4 | 13 | 1.2 | 3.5 | 0.044 | 0.041 | 50 | 46 |
| 平17 | 7.9 | 7.6 | 11.1 | 12.9 | 3.5 | 3.1 | 3 | 6 | 2.1 | 1.5 | 0.018 | 0.025 | 9 | 8 |
| 平18 | 7.6 | 7.7 | 10 | 12 | 3.5 | 3.6 | 3 | 9 | 2.8 | 3.2 | 0.065 | 0.04 | 18 | 14 |
| 平19 | 7.5 | 7.8 | 9.6 | 14 | 4.8 | 3.3 | 4 | 4 | 1.1 | 1.5 | 0.043 | 0.007 | 50 | 14 |
| 平20 | 7.6 | 7.8 | 9.8 | 12 | 4.5 | 4.6 | 5 | 11 | 1.5 | 1.9 | 0.028 | 0.055 | 18 | 34 |
| 平21 | 7.3 | 7.7 | 10 | 11 | 4.4 | 4 | 4 | 4 | 1.5 | 2.4 | 0.03 | 0.02 | 16 | 6 |
| 平22 | 7.9 | 7.9 | 14 | 12 | 4.2 | 3.1 | 3 | 4 | 0.5 | 2.1 | 0.035 | 0.029 | 19 | 11 |
| 平23 | 7.2 | 7.9 | 4.6 | 13 | 3.4 | 3.8 | 2 | 5 | 1.3 | 2.1 | 0.027 | 0.021 | 6 | 12 |
| 平24 | 8.3 | 7.7 | 11 | 11 | 3.8 | 4.4 | 4 | 15 | 1.3 | 1.5 | 0.035 | 0.039 | 29 | 12 |
| 平25 | 7.3 | 7.4 | 10 | 11 | 4.5 | 3.9 | 4 | 10 | 0.78 | 1.9 | 0.031 | 0.038 | 11 | 14 |
| 平26 | 7.4 | 7.7 | 9.8 | 11 | 3.1 | 3.7 | 2 | 7 | 1.2 | 1.5 | 0.026 | 0.034 | 9 | 13 |
| 平27 | 7.2 | 8.1 | 7.3 | 11 | 5 | 4.4 | 6 | 7 | 1.2 | 1.1 | 0.044 | 0.033 | 65 | 18 |
| 平28 | 7.5 | 8.3 | 8.6 | 12 | 4.7 | 5.2 | 4 | 10 | 1.5 | 1.1 | 0.045 | 0.044 | 16 | 32 |
| 平29 | 7.3 | 8.1 | 9.1 | 12 | 3.8 | 4.7 | 1 | 10 | 1.0 | 1.1 | 0.021 | 0.033 | 14 | 24 |
| 平30 | 8.3 | 7.9 | 10 | 12 | 4.1 | 5.5 | 2 | 8 | 0.71 | 0.87 | 0.010 | 0.040 | 7 | 33 |
| 令元 | 7.5 | 8.1 | 7.5 | 11 | 7.4 | 4.9 | 4 | 12 | 1.0 | 1.3 | 0.065 | 0.044 | 87 | 37 |
| 令2 | 7.6 | 8.1 | 9.8 | 11 | 5.4 | 5.1 | 5 | 14 | 1.0 | 1.0 | 0.053 | 0.051 | 66 | 23 |
| 令3 | 7.7 | 7.9 | 9.1 | 12 | 3.5 | 3.8 | 2 | 4 | 1.1 | 1.2 | 0.040 | 0.029 | 10 | 10 |
| 令4 | 7.5 | 8.1 | 8.1 | 13 | 5.1 | 4.6 | 8 | 5 | 0.90 | 1.2 | 0.043 | 0.028 | 53 | 16 |
| 令5 | 8.4 | 8.1 | 11 | 10 | 3.7 | 5.3 | 1 | 4 | 0.62 | 0.58 | 0.013 | 0.034 | 9 | 8 |
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