Air quality management officials say there are high levels of hydrogen sulfide being emitted by the Sea.
Coachella Valley residents were warned Monday to brace for the smell of rotten eggs, the result of high levels of hydrogen sulfide being emitted by the Salton Sea.
The gas is the result of â€œnatural processesâ€ occurring in the Salton Sea and could be spread by high winds, according to the AQMD.
The advisory is in effect through midnight.
State standards suggest hourly average concentrations of hydrogen sulfide outdoors should not exceed 30 parts per billion. Those levels peaked at 41 parts per billion Sunday night, downwind of the Salton Sea, according to the AQMD.
Levels measured by a second monitor in the nearby town of Mecca did not exceed the state standard.
At 30 parts per billion, some people could experience headaches and nausea. But the symptoms would be temporary and no long-term health effects should be expected, according to AQMD officials.