Fresno Bee Newsroom Blog

Record-setting summer for air quality, but it’s still worst in country

I’m still thinking about ozone and the summer of 2013. I think the good news in California is also the bad news.

The good? Both the San Joaquin Valley and the South Coast Air Basin are poised to set all-time records for the least number of bad days — 86 in the Valley and 90 in South Coast, so far.

The bad? South Coast’s lowest-ever number of eight-hour ozone exceedances is still the worst in the country this year. The Valley’s lowest-ever is second worst. And third place is not even close to South Coast or the Valley.

Antelope Valley is third with 64 exceedances. Coachella Valley is fourth with 48. Houston is fifth with 20.

I checked the number of exceedances for the one-hour ozone standard, too. The Valley has not breached the standard this year, which would be a first if it holds up through the end of the warm season.

South Coast, which includes Los Angeles, Riverside, San Bernardino and Orange counties, had four exceedances of the one-hour standard. Houston had one. I found no others.

Bad air in Houston, Phoenix? Not compared to Valley

The phone conversation started with a question: Which city has worse ozone — Fresno or Bakersfield?

It’s a good question, but I told the reader that we have this conversation far too often around here. It’s like debating the difference between drowning in 15 feet of water and 17 feet of water.

Fresno? Bakersfield? They’re both among the worst in the country.

I think it’s more interesting to compare the Valley with cities outside of California that have a national reputation for dirty air — like Houston and Phoenix. The pollution in Fresno, Bakersfield and other Valley cities is far worse than in cities several times larger.

Look at 2012 violations of the federal eight-hour ozone standard. Phoenix has 1.46 million people, according to the U.S. Census, and the city recorded 30 violations. Houston with a population of 2.1 million had 35.

How many Valley locations had more violations? Clovis, Fresno, Parlier, Arvin, Bakersfield, Oildale, Edison, Porterville and, oddly enough, Sequoia and Kings Canyon National Parks.

In fact, Houston and Phoenix combined didn’t have as many as the Ash Mountain site in Sequoia National Park, which recorded 82 violations. Parlier with a population of about 15,000 in Fresno County had 60. In Southern California, Crestline in the San Bernardino Mountains led the nation with 88.

Back to Bakersfield and Fresno.

In Fresno with population of about a half million, there were 51 violations last year at one monitoring site. In Bakersfield, population 352,000, one monitor showed 56.

Compared to the rest of the country, the Valley is really in another universe. Fresno and Bakersfield are just part of a bigger picture here.