2006 End of Season
Tulsa
Metropolitan Area Ozone Score Card
Highest 8-Hour Ozone Averages (ppm) *

9 Exceedances Days: June 8, June 30, July 18, July 20, August 4, August 19, August 23, September 15, September 30

Monitor

Site

2006 8-Hr. Ozone Averages
(1st through 4th highest readings)

4th Highest at end of season is key reading, and is averaged with the 2004 and 2005 4th highest readings

An Ozone Exceedance= .085 or greater

Is Our Current 3-Yr. Average Meeting the Ozone Standard?

Yes, if the 3-Yr Avg. (of 4th Highest readings) is  .084 or lower

A Violation of the standard = .085 or greater

 

 

 

1st Highest
date

2nd Highest
date

3rd
Highest
date

4th Highest date

2003-2005 Avg. of 4th Highs

CURRENT

3-YR AVG

 2004 - 2006
Avg. of 4th Highs

2003
4th High

2004
4th High

2005
4th High

 

Central (#1127 Tulsa)

0.106
20-Jul

0.086
18-Jul

0.082
30-Jun

0.081
29-Jun

0.076

0.077

0.080

0.068

0.082

 

NORTH    (#137 Skiatook)

0.095
20-Jul

0.094
18-Jul

0.087
 30-Jun

0.084
29-Jun

0.079

0.079

0.083

0.071

0.083

 

South    (#174 Glenpool)

 0.107
19-Aug

0.093
4-Aug

0.087
30-Sep

0.078
8-Jun

0.076

0.073

0.086

0.071

0.072

 

East   (#178 Lynn Lane)

0.112
20-Jul

0.099
19-Aug

0.091
4-Aug

0.084
19-Jul

0.079

0.079

0.084

0.073

0.081

 

West   (#144 Mannford)

0.085
8-Jun

0.085
19-Aug

0.085
23-Aug

0.085
15-Sep

0.076

0.077

0.081

0.071

0.076

An exceedance of the 8-hr ozone standard is  .085 ppm or greater
* NOTE: all readings are preliminary and unofficial

 

 

 

 

 

 

 

 

 

 

 

 

Explanation of the Ozone Standard

·         The new revised national ozone standard is an eight-hour averaged standard and is calculated by averaging data over a three year time period. This average is taken from the fourth highest eight-hour average at each monitor. A violation occurs when the 3-year average (of the 4th highest value) is greater than .084 ppm. We currently meet the standard, as the current 3-year average at each monitor is less than .085 ppm. The 3-year average (of the 4th highest values) is shown above in green.

·         To determine an ozone violation, the following example calculation is used: North (Skiatook) monitor’s 2003 4th highest reading was .083, its 4th highest in 2004 was .071, the 2005 4th highest for that monitor is  .083.   Thus, .083 + .071 + .083 divided by 3 = .079 ppm, which meets the standard (the standard applies no rounding.)

·         A violation of the Ozone Standard means that our entire Metropolitan Statistical Area of seven surrounding counties including Tulsa County would be eligible for the EPA “Dirty Air List” or Non-Attainment. 

 

 

Tulsa Area
Ozone Alert! Days

Year

No. of
Days

2006

12

2005

13

2004

3

2003

8

2002

8

2001

8

2000

15

1999

17

1998

10