_id	測定項目(単位)	年　　度	26.0	27.0	28.0	29.0	30.0
1	二酸化窒素	""	0.01700000000000000122124532708767219446599483489990234375	0.01450000000000000073552275381416620803065598011016845703125	0.01299999999999999940325512426397835952229797840118408203125	0.0120000000000000002498001805406602215953171253204345703125	0.01000000000000000020816681711721685132943093776702880859375
2	一酸化炭素	""	0.40000000000000002220446049250313080847263336181640625	0.5	0.40000000000000002220446049250313080847263336181640625	0.40000000000000002220446049250313080847263336181640625	0.299999999999999988897769753748434595763683319091796875
3	非メタン炭化水素	""	0.1000000000000000055511151231257827021181583404541015625	0.1000000000000000055511151231257827021181583404541015625	0.1000000000000000055511151231257827021181583404541015625	0.08000000000000000166533453693773481063544750213623046875	0.0899999999999999966693309261245303787291049957275390625
4	　資料　環境部環境対策課　　　	""