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| Title | 図4-7-3 昼間の測定時間の濃度レベル別割合の推移（一般局） |
|---|---|
| URL | https://www.env.go.jp/policy/hakusyo/r01/excel/fd2_4_7_03.xlsx |
| Description | |
| Format | XLSX |
| File Size | 10,440 |
| Last Modified Date | October 23, 2025 |
| License | CC BY |
| Copyright | |
| Language | ja |