Header

Agency Links
IN.gov Links
Gov. Eric J. Holcomb
Eric J. Holcomb
Governor
Eric J. Holcomb
Visit His Homepage

Ozone Hourly Averages

Ozone is a form of oxygen with three atoms instead of the usual two atoms. It is a photochemical oxidant and, at ground level, is the main component of smog. Unlike other gaseous pollutants, ozone is not emitted directly into the atmosphere. Instead, it is created in the atmosphere by the action of sunlight on volatile organic compounds and nitrogen oxides.

In general, higher levels of ozone usually occur on sunny days with light winds, primarily from March through October. An ozone exceedance day is counted if the measured eight-hour average ozone concentration exceeds the standards.

Use the controls below to select a different date or parameter and to control cell highlighting based on measured Ozone levels. Click on the Generate Report button once you have made your selections.

Click on the Plot Data button once the tabular report has been generated to open a separate window containing data plots.
Select a date: Time Format: Select a Parameter:
   
Ozone Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy  
Highlight validated data (Validated data has been manually reviewed by a data validator)
Select a Region:

Ozone Hourly Averages for Thursday, December 12, 2019.
measured in parts per billion
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
North West - all times are in CST
6 47131410766101417 LOST NA NA NA 6 1 R IDEM
13 2141918161299111416 LOST NA NA NA 13 1 R IDEM
16 715222221181514151819 LOST NA NA NA 16 1 R IDEM
28 10151616141298101113 LOST NA NA NA 28 1 R IDEM
31 91520191713109131516 LOST NA NA NA 31 1 R IDEM
34 810151315141312121415 LOST NA NA NA 34 1 R IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
North Central - all times are in EST
5 01379121312111215 FEW NA NA NA 5 1 R IDEM
18 155121513121111111213 NA NA NA 18 1 R IDEM
21 91718191919171414141517 NA NA NA 21 1 R IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
North East - all times are in EST
7 017121211523131415 NA NA NA 7 1 R IDEM
19 1388111010810131515 NA NA NA 19 1 R IDEM
27 151211161311911111112 NA NA NA 27 1 R IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
West Central - refer to the first data column for each site's specific time zone
EST9 101110121212936101317 NA NA NA 9 1 R IDEM
EST36 171614131211111011131517 NA NA NA 36 1 R IDEM
EST37 151615181818181820202021 NA NA NA 37 1 R IDEM
CST38 98107561214181920 LOST NA NA NA 38 1 R IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
East Central - all times are in EST
25 141314151313121213141617 NA NA NA 25 1 R IDEM
40 13 SPZ14131313131313161718 NA NA NA 40 1 R IDEM
56 771012131187891013 NA NA NA 56 1 R IDEM
60 3101112129768121316 NA NA NA 60 1 R IDEM
63 141616171615111313151719 NA NA NA 63 1 R IDEM
65 98746511361013 NA NA NA 65 1 R IDEM
66 32797552481114 NA NA NA 66 1 R IDEM
68 91012131111121011151718 NA NA NA 68 1 R IDEM
71 810710107557111416 NA NA NA 71 1 R IDEM
76 181816131414131315181819 NA NA NA 76 1 R IDEM
78 810101011975691113 NA NA NA 78 1 R IDEM
79 12111010109877101315 NA NA NA 79 1 R IDEM
80 8546121064581218 NA NA NA 80 1 R IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
South West - refer to the first data column for each site's specific time zone
CST12 01487566121925 LOST NA NA NA 12 1 R IDEM
CST15 1111111171922 LOST NA NA NA 15 1 R IDEM
CST24 7681112131010131723 LOST NA NA NA 24 1 R IDEM
CST33 1717182019191816192427 LOST NA NA NA 33 1 R IDEM
CST49 2425232019191920232427 LOST NA NA NA 49 1 R IDEM
CST52 202020211712811142025 LOST NA NA NA 52 1 R IDEM
EST67 191918171819191918182125 NA NA NA 67 1 R IDEM
RegionCAMSMorningAfternoonCAMSPOCEntity
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00
South East - all times are in EST
3 000000000133 NA NA NA 3 1 R IDEM
4 10101011121312912131518 NA NA NA 4 1 R IDEM
59 18171716141311910131417 NA NA NA 59 1 R IDEM
Maximum values for the day are bold within the table. Minimum values are bold italic.
 R - Data from this instrument meets EPA quality assurance criteria for regulatory purposes.

PLEASE NOTE: This data has not been verified by the IDEM and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from IDEM ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.