Researcher Tobie Bloom wears a protective suit before testing water in the Tijuana River in San Diego County. (Luke Johnson / Los Angeles Times) New research backs up the concerns of people who live ...

New research backs up the concerns of people who live near the Tijuana River and have long complained that foul air wafting from the polluted waterway is making them sick — irritating their eyes and ...

Scientists measured air pollution coming from the sewage-filled Tijuana River near the U.S.-Mexico border and found high levels of hydrogen sulfide, which comes from sewage and has an odor resembling ...