| Date | H | B | M | O | Event | Ozone8HrAvg (Legend) | 1-Hour Average |
| 4/1/01 | |||||||
| 4/2/01 | |||||||
| 4/3/01 | |||||||
| 4/4/01 | |||||||
| 4/5/01 | |||||||
| 4/6/01 | |||||||
| 4/7/01 | |||||||
| 4/8/01 | |||||||
| 4/9/01 |  |
 |
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| 4/10/01 |  |
 |
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| 4/11/01 |  |
 |
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| 4/12/01 |  |
 |
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| 4/13/01 |  |
 |
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| 4/14/01 |  |
 |
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| 4/15/01 |  |
 |
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| 4/16/01 |  |
 |
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| 4/17/01 |  |
 |
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| 4/18/01 |  |
 |
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| 4/19/01 |  |
 |
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| 4/20/01 |  |
 |
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| 4/21/01 |  |
 |
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| 4/22/01 |  |
 |
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| 4/23/01 |  |
 |
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| 4/24/01 |  |
 |
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| 4/25/01 |  |
 |
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| 4/26/01 |  |
 |
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| 4/27/01 |  |
 |
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| 4/28/01 |  |
 |
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| 4/29/01 |  |
 |
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| 4/30/01 |  |
 |
