503202220212020202910281027102610251024102310221021102020261022102800240020002699129918891489108916791279102026102210280024002000269912991889148910891679127910.050.040.030.020.0100.120.10.080.060.040.020201510130二酸化窒素（ＮＯ２）（ｐｐｍ）浮遊粒子状物質（ＳＰＭ）（ｍｇ／㎥）二酸化窒素（ＮＯ２）（ｐｐｍ）浮遊粒子状物質（ＳＰＭ）（ｍｇ／㎥）二酸化窒素（ＮＯ２）（ｐｐｍ）浮遊粒子状物質（ＳＰＭ）（ｍｇ／㎥）二酸化窒素（ＮＯ２）（ｐｐｍ）浮遊粒子状物質（ＳＰＭ）（ｍｇ／㎥）微小粒子状物質（ＰＭ2. 5 ）（μｇ／㎥）（ｐｐｍ）年度1985年度1998年度2011二酸化窒素（ＮＯ２）■■■■■■197319741987200019992013201215.816.714.215.9（ｍｇ／㎥）1975197619881989200120022014201516.017.213.815.0浮遊粒子状物質（ＳＰＭ）■■■19781979197719901991199220052003200420182016201712.613.812.813.912.413.4（μｇ／㎥）■■■1981198019931994200620072019202010.511.29.810.5微小粒子状物質（ＰＭ２．５）■■■198219831984一般局0.0240.0310.0320.0330.0320.0310.0340.0320.0300.0290.0300.0290.028自排局0.0230.0350.0350.0400.0410.0400.0450.0450.0450.0440.0430.0430.0390.1010.0810.0730.0670.0740.0580.0470.0460.0530.0510.0470.049一般局0.0730.1050.0740.0640.0730.0560.0410.0390.0500.0510.0520.052自排局19971986一般局0.0270.0280.0300.0300.0300.0300.0320.0310.0310.0310.0310.0310.031自排局0.0380.0390.0420.0420.0410.0400.0440.0420.0410.0410.0420.0420.042一般局0.0500.0540.0570.0490.0530.0520.0570.0500.0460.0480.0480.0460.045自排局0.0510.0600.0610.0570.0660.0680.0730.0670.0620.0640.0650.0620.0612010一般局0.0300.0280.0280.0280.0270.0270.0260.0250.0250.0230.0210.0210.020自排局0.0410.0400.0400.0410.0390.0390.0370.0370.0360.0340.0320.0310.029一般局0.0450.0400.0390.0370.0330.0320.0290.0290.0290.0250.0240.0230.021自排局0.0580.0470.0510.0500.0430.0390.0330.0330.0330.0300.0280.0270.0252023一般局0.0190.0180.0180.0170.0170.0160.0160.0150.0140.0130.0120.0120.012自排局0.0270.0260.0260.0260.0250.0230.0230.0210.0200.0180.0180.0170.017一般局0.0210.0200.0210.0200.0190.0170.0170.0180.0160.0140.0120.0130.013自排局0.0230.0220.0230.0210.0210.0190.0190.0190.0170.0160.0140.0140.0158.8一般局15.7自排局17.79.21995199620082009202120228.58.89.09.4■■■…データ集■主な大気汚染物質の経年変化（年平均値）年度1972
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