NO2
float64
0
104
CO
float64
0
3.14
dt
unknown
70.808163
0.46633
"2008-05-01T00:00:00"
77.502104
0.502392
"2008-06-01T00:00:00"
70.359566
0.472738
"2008-07-01T00:00:00"
68.807065
0.570891
"2008-08-01T00:00:00"
63.140449
0.40245
"2008-09-01T00:00:00"
62.806233
0.774683
"2008-10-01T00:00:00"
56.840112
0.848214
"2008-11-01T00:00:00"
58.082656
0.861721
"2008-12-01T00:00:00"
67.869891
3.136821
"2009-01-01T00:00:00"
62.337838
1.488481
"2009-02-01T00:00:00"
65.222524
1.246608
"2009-03-01T00:00:00"
88.369497
1.174113
"2009-04-01T00:00:00"
74.038199
0.77597
"2009-05-01T00:00:00"
68.953957
0.79211
"2009-06-01T00:00:00"
71.964722
0.848223
"2009-07-01T00:00:00"
79.66575
0.853415
"2009-08-01T00:00:00"
76.584034
1.09475
"2009-09-01T00:00:00"
59.164179
1.201184
"2009-10-01T00:00:00"
64.974648
1.987444
"2009-11-01T00:00:00"
62.188934
1.812624
"2009-12-01T00:00:00"
58.55156
1.562446
"2010-01-01T00:00:00"
91.726998
2.00985
"2010-02-01T00:00:00"
77.970149
1.25965
"2010-03-01T00:00:00"
78.5
0.984582
"2010-04-01T00:00:00"
69.497937
0.957274
"2010-05-01T00:00:00"
74.448664
0.826466
"2010-06-01T00:00:00"
72.608262
0.738669
"2010-07-01T00:00:00"
60.294118
0.967026
"2010-08-01T00:00:00"
59.766434
1.126861
"2010-09-01T00:00:00"
60.592944
1.410741
"2010-10-01T00:00:00"
56.992733
1.578403
"2010-11-01T00:00:00"
68.360054
2.045255
"2010-12-01T00:00:00"
47.765986
1.240986
"2011-01-01T00:00:00"
61.946027
0.994744
"2011-02-01T00:00:00"
80.217984
1.194559
"2011-03-01T00:00:00"
79.259831
0.902623
"2011-04-01T00:00:00"
81.075984
0.867873
"2011-05-01T00:00:00"
77.769886
0.789697
"2011-06-01T00:00:00"
72.989145
0.693483
"2011-07-01T00:00:00"
74.242547
0.761338
"2011-08-01T00:00:00"
72.359551
0.841435
"2011-09-01T00:00:00"
71.620924
1.077942
"2011-10-01T00:00:00"
70.582633
1.637989
"2011-11-01T00:00:00"
68.542625
1.522705
"2011-12-01T00:00:00"
54.071332
1.424454
"2012-01-01T00:00:00"
75.068017
1.378592
"2012-02-01T00:00:00"
69.781627
1.106755
"2012-03-01T00:00:00"
78.134281
0.751715
"2012-04-01T00:00:00"
80.70614
0.649505
"2012-05-01T00:00:00"
75.234551
0.759466
"2012-06-01T00:00:00"
72.688931
0.795967
"2012-07-01T00:00:00"
78.475543
0.911588
"2012-08-01T00:00:00"
75.444915
0.773721
"2012-09-01T00:00:00"
73.86119
0.885855
"2012-10-01T00:00:00"
60.371631
1.431177
"2012-11-01T00:00:00"
61.790476
1.779662
"2012-12-01T00:00:00"
77.685714
2.639764
"2013-01-01T00:00:00"
61.512782
1.068733
"2013-02-01T00:00:00"
66.086957
0.984838
"2013-03-01T00:00:00"
79.377465
0.99777
"2013-04-01T00:00:00"
67.159785
0.782005
"2013-05-01T00:00:00"
69.021841
0.862145
"2013-06-01T00:00:00"
71.056022
0.807736
"2013-07-01T00:00:00"
73.878581
0.853452
"2013-08-01T00:00:00"
65.124464
0.67493
"2013-09-01T00:00:00"
82.720588
1.127257
"2013-10-01T00:00:00"
60.505556
1.199069
"2013-11-01T00:00:00"
58.754032
1.751895
"2013-12-01T00:00:00"
44.746299
1.82569
"2014-01-01T00:00:00"
69.333832
2.065037
"2014-02-01T00:00:00"
64.997187
1.09699
"2014-03-01T00:00:00"
63.269394
0.770184
"2014-04-01T00:00:00"
64.793914
0.798492
"2014-05-01T00:00:00"
67.660167
0.702521
"2014-06-01T00:00:00"
69.049731
0.815712
"2014-07-01T00:00:00"
63.026882
0.876317
"2014-08-01T00:00:00"
62.459885
0.859756
"2014-09-01T00:00:00"
58.663526
1.151467
"2014-10-01T00:00:00"
54.298551
1.221212
"2014-11-01T00:00:00"
48.841398
1.139556
"2014-12-01T00:00:00"
40.709809
1.031342
"2015-01-01T00:00:00"
65.938428
1.325707
"2015-02-01T00:00:00"
61.613158
1.037542
"2015-03-01T00:00:00"
62.285931
0.689907
"2015-04-01T00:00:00"
69.883344
0.696815
"2015-05-01T00:00:00"
70.667835
0.671727
"2015-06-01T00:00:00"
67.84577
0.625599
"2015-07-01T00:00:00"
75.486744
0.655161
"2015-08-01T00:00:00"
66.097363
0.726562
"2015-09-01T00:00:00"
57.917065
1.021307
"2015-10-01T00:00:00"
54.895898
1.183906
"2015-11-01T00:00:00"
56.034516
1.099587
"2015-12-01T00:00:00"
51.262246
1.914046
"2016-01-01T00:00:00"
57.580971
0.868857
"2016-02-01T00:00:00"
57.080521
0.821535
"2016-03-01T00:00:00"
63.473333
0.754989
"2016-04-01T00:00:00"
64.229833
0.65764
"2016-05-01T00:00:00"
65.954733
0.63037
"2016-06-01T00:00:00"
58.937211
0.557495
"2016-07-01T00:00:00"
60.886359
0.616026
"2016-08-01T00:00:00"