[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"kakomon-q-2026-ippan-55":3},{"slug":4,"exam_year":5,"exam_round":6,"section":7,"section_code":8,"number":9,"body":10,"choices":11,"correct_indices":28,"explanation":29,"has_explanation":15,"tags":30},"2026-ippan-55",2026,4,"一般","ippan",55,"日本の上水の水質基準において「検出されないこと」とされている項目はどれか。",[12,16,20,23,25],{"index":13,"body":14,"is_correct":15},1,"大腸菌",true,{"index":17,"body":18,"is_correct":19},2,"一般細菌",false,{"index":21,"body":22,"is_correct":19},3,"カドミウム",{"index":6,"body":24,"is_correct":19},"水銀",{"index":26,"body":27,"is_correct":19},5,"ヒ素",[13],"正答は1（大腸菌）。日本の水道水（上水）の水質基準で「検出されないこと」とされているのは大腸菌（糞便汚染の指標）。2一般細菌は100個\u002FmL以下、3カドミウム・4水銀・5ヒ素はそれぞれ数値の基準値が定められており、「検出されないこと」ではない。",null]