Occupational Exposure and Health Symptoms Related to the Tijuana River Valley Sewage Crisis - Results from an Assessment of Chemical Exposures, California, 2024.

Saif, Nadia T; Konkle, Stacey; Madera-Garcia, Valerie; Staley, Brooke S; Kennar, Audrey E; Rumph, Jelonia T; Beatty, Mark E; Shah, Seema et al. · J Occup Environ Med · 2026

cross_sectional · Level IV

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Abstract

Describe health outcomes among workers affected by the Tijuana River Valley (TRV) sewage crisis. In October-November 2024, a cross-sectional online survey was administered to individuals who worked in areas affected by the TRV sewage crisis as part of an Assessment of Chemical Exposures. Among 443 workers, 110 (25%) reported direct contact with contaminated Tijuana River or beach water. 55% of workers reported exposure to severe odor. Nearly two-thirds experienced physical symptoms attributed to the crisis, and one-third missed work due to symptoms. Direct water contact was linked to higher prevalence of physical and mental health symptoms and absenteeism. Those reporting work-related direct water contact were largely outdoor workers. TRV workers have experienced health impacts due to the ongoing sewage crisis. Findings may help inform public health response and resource needs.