Waste dumped into the Tijuana River can travel seven times farther than expected before becoming airborne and affecting San Diego’s air, at least 20 miles from its source, according to UC Riverside research. The river carries a complex mixture of untreated sewage from toilets, industrial waste, and urban runoff into the Pacific Ocean at Imperial...

A study examining air quality and respiratory health in communities surrounding the Salton Sea in Southern California shows how environmental conditions, poor housing quality, and structural inequities combine to place children at greater risk for respiratory illness. The Salton Sea, California’s largest inland lake, has been shrinking as water inflows decline and temperatures rise. The...

Several Southern California communities, including Riverside, are being hit with smoke from the huge Line Fire in the San Bernardino Mountains, creating what the Environmental Protection Agency classifies as “very unhealthy” air quality. UC Riverside experts on environmental pollution describe what we’re breathing, how long the airborne particles are likely to stick around, and what...