Season

Average O3
(20:00-08:00 h)
ppbv

Average O3
(08:00-20:00 h)
ppbv

O3minimum (ppbv)

O3
maximum (ppbv)

Winter

4.4 ±1.9

29.2±4.4

2.9

44.0

Summer

5.3±1.8

21.4±3.9

4.1

33.4

Monsoon

3.5±1.2

11.8±3.4

2.3

18.5

Post monsoon

4.9±1.4

17.7±3.6

3.3

28.0

Table 2: Seasonal average day and night time O3, maximum and minimum O3.