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Santa Monica bay was source of foul odor - officials

The Santa Monica Bay is seen in this undated file photo.

March 3, 2013 12:00:00 AM PST
Air quality officials said methane gas or stinky algae were the likely sources of Sunday's foul odor across the Southland.

Technicians with the South Coast Air Quality Control District said they believe the stink is an ocean-based natural occurrence blowing ashore from the Santa Monica Bay.

Santa Monica hazmat crews found unusual concentrations of odorless methane gas in the air.

Officials believe either a pocket of stinky algae, or a bubble of methane laced with sulfurous gas, surfaced in the ocean.

The Los Angeles Fire Department said they received many calls about the smell.