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Foul odors emanating from the Dominguez Channel were declared a public health nuisance by the Carson City Council on Monday, with Los Angeles County health officials making a similar declaration.

The odors, which have been likened to rotten eggs, vomit, unwashed body parts or a “fart bomb,” are probably caused by hydrogen sulfide from decomposing organic material and have prompted thousands of complaints from residents since they started about a week ago.

To lessen health effects, people should leave the area, the health department said in a news release Monday declaring the odors “sufficiently pervasive to be considered a public nuisance.”

Residents should keep doors and windows closed when the air smells bad and contact air conditioning specialists about upgrading filters, the health department said. Pets should stay indoors.

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