South Bay and Imperial Beach residents are evacuating due to toxic hydrogen sulfide gas levels 150 times higher than safety limits, stemming from a persistent Tijuana River sewage crisis.San Diego County Supervisor Paloma Aguirre is demanding that California Governor Gavin Newsom declare a state of emergency after previously vetoing 50 million dollars in cleanup funding.Local leaders and residents report severe respiratory and health issues, calling for immediate federal intervention to resolve the environmental disaster.