Weird news: Southern California engulfed by rotten-egg smell
Air quality officials suspect a recent fish die-off in the Salton Sea is responsible for the foul odor
Topics: Weird news of the day, California, Salton Sea, marine life, Los Angeles, News
SANTA ANA, Calif. — Regional air quality officials in Southern California on Tuesday were awaiting an analysis of air samples as they tried to determine the source of a pungent, rotten-egg aroma that seeped across the region the day before.
The foul aroma that prompted hundreds of complaints and prompted at least one school to cancel recess had largely dissipated Tuesday, but its source remained a mystery.
One possible cause: A massive thunderstorm may have churned up bacteria from a recent fish die-off in the Salton Sea, a saltwater lake 150 miles southeast of Los Angeles, and released the stench into the air where it was trapped by low-hanging clouds.
But even as officials said several factors indicate the Salton Sea as the source of the sulfurous smell, air quality investigators stopped short of declaring with certainty that the 376-square-mile lake was the cause.
Barry Wallerstein, executive officer of the South Coast Air Quality Management District, said in a statement late Monday that “there is not yet any definitive evidence to pinpoint the Salton Sea or any other source yet.”
One reason for doubt, the statement said, is that “it is highly unusual for odors to remain strong up to 150 miles from their source.”
The smell was reported as far away as Palmdale and Lancaster, more than 150 miles north of the Salton Sea. The dying sea had a fish die-off within the past week and that, combined with strong storms in the area Sunday, could have churned up the water and unleashed bacteria from the sea floor, said Janis Dawson of the Salton Sea Authority.
The massive thunderstorm complex brought wind gusts up to 60 mph and widespread dust storms. Mark Moede, a National Weather Service meteorologist in San Diego, called it “huge, one of the largest that any of us have ever seen in probably 10 years.”
The South Coast Air Quality Management District was awaiting the results of tests on air samples taken from the Salton Sea and the nearby Coachella Valley, as well as on samples taken from nearly a dozen other cities across the region.
The agency said a strengthening onshore breeze Tuesday would likely dissipate the smell – something that already was happening by Tuesday morning.
Julie Hutchinson, battalion chief at the California Department of Forestry and Fire Protection in Riverside, said the air was clear on Tuesday and her agency hadn’t received any calls or complaints.
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