Fresno Bee Newsroom Blog

Will the Valley dip below 100 dirty-air days this year?

Fresno’s gritty skyline this September.

The San Joaquin Valley might not exceed the eight-hour federal ozone standard 100 times this year — not exactly a success story anywhere in the country except here or Southern California.

But it is news. It has only happened twice here, according to the records. In 2009, the count was 98. In 2010, it was an all-time low of 93.

The only problem is the weather can be cruel in late September. The last four days of September 2010 were triple-digit nightmares.

The heat continued sporadically that year. There were 10 exceedances after Oct. 1 in 2010 — two of them after Nov. 1.

Flash forward to this year. The total is 77 on Sept. 13. It was 74 on that day three years ago. So there’s a chance the total will be below 100 exceedances this year.

I usually add something about the target being zero exceedances. For now, I’d settle for a shutout for the rest of September, October and November.

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