For decades, residents of San Diego and Tijuana have endured a sewage-like stench drifting from the Tijuana River. The odor has been so persistent and overwhelming that some families have relocated, as air quality conditions continue to worsen.
With billions of gallons of untreated sewage contaminating the river, local and state authorities have attempted multiple measures to address the problem. Last December, the United States and Mexico signed an agreement aimed at curbing the pollution flowing into the Tijuana River, including infrastructure upgrades and other steps to contain the crisis.
