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'ガスフラックス調査は,日変動が大きいガス抜き管で短時間での調査を避ける必要があり,ホットスポットと呼ばれるガス放出点の探索が維持管理の上で重要であることが示された。埋立地ガスの濃度を調査する上では,ガス抜き管を対象とするだけでなく,場内観測井等で廃棄物層内のガスを観測するとともに,内部保有水の': [1], 'pH': [2], 'を併せて測定することで,硫化水素や二酸化炭素等の酸性ガスの放出に関しても確認できる。': [3]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3099288294', 'counts_by_year': [{'year': 2018, 'cited_by_count': 1}], 'updated_date': '2024-09-18T16:20:52.075391', 'created_date': '2020-11-23'}