Jae C. Hong, Associated Press
SAN FRANCISCO — State air pollution regulators said Monday that California's air quality is not expected to worsen appreciably after the governor ordered the release of a dirtier blend of gasoline to help slash record-high pump prices.
The California Air Resources Board issued a regulatory advisory a day earlier after Gov. Jerry Brown ordered them to allow so-called "winter-blend" gasoline to be sold in California earlier than usual to increase supply.
AAA said the average price for a gallon of regular hit $4.668 Monday in California — the highest price in the nation and an all-time high for the Golden State. Analysts said the spike has been driven by refinery disruptions and corrosion issues in an important pipeline.
"This action is necessary to address the extreme and unusual fuel supply circumstance," said the board's advisory allowing the use of the more polluting fuel. "(It) is necessary for the immediate preservation of the public peace, health and safety or general welfare."
California usually converts to the gas on Oct. 31. The fuel evaporates in heat more quickly than summer-blends, so sends more pollutants into the environment, especially in warm weather.
Gil Duran, a spokesman for Brown, said the governor looked at all the options available, particularly scientists' prediction that such a change would not have a significant effect on the environment and "when he learned this could increase the supply by 8 to 10 percent, it just made sense."
Sunday's action was the first time since 2005 — when gas supplies were affected by refinery disruptions in the wake of Hurricane Katrina — that the air board has approved early conversion to winter-gas blends.
Officials said it could take days before prices fall, depending on how quickly refineries can get the winter-blend fuel to market.
"The gasoline market moves on news, and this is clearly good news in terms of supply, because it should be able to increase supply immediately," said Alison apRoberts, a spokeswoman with the California Energy Commission.
The third day of record-setting prices at the pump has also prompted calls for a federal investigation.
Sen. Dianne Feinstein, D-Calif., called on the Federal Trade Commission to investigate, saying residents need to be protected from "malicious trading schemes."
Spokesmen for the FTC in Washington didn't immediately return calls seeking comment.
Feinstein in her letter Sunday asked the FTC to determine if the price spike was caused by illegal manipulation of the market and to start monitoring the market for fraud, manipulation, or other malicious trading practices.
"Publically available data appears to confirm that market fundamentals are not to blame for rising gas prices in California," she wrote.
Despite a pipeline and refinery shut down, she said, state data shows gas production last week was "almost as high as a year ago, and stockpiles of gasoline and blending components combined were equal to this time last year," she said.
In some locations, fuming motorists paid $5 or more per gallon while station owners had to shut down pumps in others.
A station in Long Beach south of Los Angeles had California's priciest gas at $6.65 for a gallon of regular, according to GasBuddy.com. Meanwhile, customers at an outlet in San Pablo north of Oakland paid just $3.49, the lowest.
Winter-blend gas typically isn't sold until after October 31, when cooler temperatures typically allow for its use while maintaining federal and state air quality standards. Few refineries outside the state are currently making summer-blend gas, putting the pressure on already-taxed California manufacturers.
Still, the air board said it believed that changing over a few weeks earlier than normal would not push California's air pollution beyond normal levels for this time of year.
Christopher Weber in Los Angeles, Juliet Williams in Sacramento and Business Writer Marcy Gordon in Washington contributed to this report.
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