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| 1 | Environmental Quality Standards for Groundwater | 地下水の水質汚濁に係る環境基準 | |||
| 2 | Changes in Exceeding Rate to EQSs for Groundwater (Items with high exceeding rate) | 地下水の水質汚濁に係る環境基準(超過率の高い項目)の超過率の推移 | |||
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| 1 | Environmental Quality Standards for Groundwater | 地下水の水質汚濁に係る環境基準 | |||
| 2 | Changes in Exceeding Rate to EQSs for Groundwater (Items with high exceeding rate) | 地下水の水質汚濁に係る環境基準(超過率の高い項目)の超過率の推移 | |||
 
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