2016 END OF SEASON OZONE SCORECARD
Tulsa Area Ozone Trends Chart

2 Exceedance Days: June 7, August 5

Through October 31, 2016

Monitor Site 2016 Highest 8-Hr Ozone Averages (ppm)*
(1st through 4th highest daily readings)
DESIGN VALUE
3-Year Average

of the 4th highest readings
2013 4th High 2014 4th High 2015 4th High 1st Highest
date
2nd Highest
date
3rd Highest
date
4th Highest
date
2013-2015
3-Yr Avg
2014-2016 
3-Yr Average
West (#144 Mannford) .066
4-Apr
.065
5-Apr
.064
2-Oct
.064
11-Oct

.065 .064
.068 .066 .063
East (#178 Lynn Lane) .075
5-Aug
.066
4-Oct
.064
7-Jun
.063
24-Apr
.065 .063
.068 .063 .065
Central (#1127 Tulsa) .065
20-Jun
.063
24-Apr
.062
18-Feb
.062
5-Apr
.068 .065
.072 .065 .068
North (#226 New Location in Skiatook) .068
20-Jun
.067
2-Oct
.065
19-Jun
.064
8-Jun

South (#174 Glenpool) .091
7-Jun
.070
6-Jun
.066
18-Feb
.064
28-Jun
.064 .062
.069 .062 .061

An Ozone Exceedance = .071 ppm or greater
Exceedance days are unhealthy air days and shown in red in the table above.

The EPA Ozone Standard uses the Design Value: Although certainly concerning, exceedance days are not the same thing as 'violating the ozone standard'. The standard uses the 4th highest reading each year and averages it with the 4th highest readings from the two prior years. This 3-year average is called the Design Value. In the table above, the middle columns with dates show this year's 1st through 4th highest daily readings for each monitor. The 4th highest column is the one that counts at year end - the one that is averaged with the 4th highest readings from the two previous years. Each monitor's readings and averages are calculated uniquely and whichever Design Value is the highest becomes the area's Ozone Design Value.

A Violation of the ozone standard = Design Value .071 or greater.

Our current Design Value is .065 ppm calculated by the Central monitor's averaging 2014's 4th high value (.065), 2015's 4th highest value (.068) and our 2016 current 4th highest reading of .062 ppm (the standard uses no rounding).

Does our 2014-2016 Design Value meet the EPA ozone standard? Yes.

*2016 data is preliminary and subject to change as a result of the ODEQ/EPA verification process

Tulsa Area Ozone Alert! Days (2000 - present)

Year May June July August September TOTAL Alert! Days

2016

20th, 28th 28th 10th 4

2015
  10th         1

2014
    24th       1

2013
   13th  12th 22nd  4th 4
2012  18th  25th, 26th, 27th, 28th, 29th  10th, 11th, 12th, 13th, 21st, 22nd, 28th  2nd, 3rd, 6th, 7th, 8th, 10th  4th, 5th 21
2011   3rd, 15th , 24th, 28th  2nd , 6th , 8th, 9th, 15th, 29th 3rd, 4th, 5th, 17th, 20th, 21st, 24th, 25th, 26th, 27th, 28th 1st, 2nd, 3rd, 13th 25
2010  28th     12th, 19th, 23rd , 28th   5
2009   24th, 25th, 26th, 27th, 30th 1st, 7th, 11th, 16th 13th, 25th    11
2008     18th, 28th, 31st 1st, 2nd, 4th, 5th, 26th   8
2007       2nd, 3rd, 14th, 15th, 16th    5
2006  25th 12th, 15th, 29th, 30th 1st, 2nd, 17th, 19th, 20th, 21st 24th   12
2005   21st, 22nd, 24th, 25th, 26th 30th 1st, 2nd, 4th, 10th 3rd, 4th, 5th 13
2004     15th, 21st, 22nd     3
2003     2nd, 3rd, 30th 6th, 7th, 23rd, 26th, 27th   8
2002   24th, 25th 9th, 10th, 25th 6th, 9th, 31st   8
2001   26th 11th, 25th 3rd, 4th, 6th, 7th 14th 8
2000     17th 1st, 2nd, 3rd, 4th, 15th, 16th, 23rd, 24th, 25th, 26th  2nd, 3rd, 4th, 8th 15