2000 Ozone Scorecard – Tulsa Air Quality

	Three-Year Averages of the 4^th highest eight-hour maximum
MONITOR	1994–1996	1996–1998	1995–1997	1997–1999	1998–2000
*Tulsa(127)*	.091	.089	.085	.086	.080
*Tulsa (1127)*
*Skiatook*	.092	.089	.087	.088	.093
*Glenpool*	.083	.084	.082	.083	.081

The 8-hr Standard for Ozone is violated if the (4^th highest 8-hr average)3-year average of at any one

monitor exceeds .084 PPM.

Both the Tulsa and Skiatook monitors are in violation of the 8-hr standard.

OZONE EXCEEDANCES (1-Hr Standard 1991 –2000)

The 1-hr Standard for Ozone is violated if the average number of 1-hr exceedances, at any

one monitor over a 3-year period of time – is greater than 1.

The Skiatook monitor is in violation of the 1-hr standard.

15 Ozone Alert! Days were called this season
We exceeded the ozone standard 10 days this year (15 separate exceedances; last year there were 14 days with 20 separate exceedances)

Three-Year Averages of the 4th highest eight-hour maximum