Tijuana River's toxic water pollutes the air: Study shows hydrogen sulfide levels exceed air quality standards

PHYSorg
Aug 28, 2025, 2:00 pm450 ptsHotTop
For decades, the Tijuana River has carried millions of gallons of untreated sewage and industrial waste across the U.S.-Mexico border. The river passes through San Diego's South Bay region before emptying into the ocean, recently leading to more than 1,300 consecutive days of beach closures and water quality…

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