A combination of several factors has led to the overflow of sewage, causing runoff water and contamination to go into the ocean on both the Mexico and U.S. sides of the border.
There are multi-agency efforts to address air and water quality issues in the Tijuana River Valley that are impacting San Diego area communities.
This dashboard and mapping tool provide information from multiple sources about the air and beach/river water quality in San Diego related to this issue.
More information about what actions the County is taking to ensure the health and quality of life for South Region residents can be found here: What the county is doing
Report odor complaints to the San Diego County Air Pollution Control District by:
When filing a report, the following information will assist us in investigating your concern:
Recommendations based on current Hydrogen Sulfide levels can be found here:
Air Quality Monitoring
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Hydrogen Sulfide
Hydrogen sulfide (H₂S) is a colorless gas with a characteristic odor of rotten eggs. Hydrogen Sulfide is measured in ppB (parts per billion) - lower is better.
Air Quality Monitoring
Longer term monitoring information can be found here:
Hydrogen Sulfide Monitoring
7.4 ppb | 12:00 PM | NESTOR - BES |
7.4 ppb | 12:00 PM | NESTOR - BES |
-3 Beaches Closed | +100 from last week |
Sewage contamination has led to beach closures. Additional warnings and advisories can be found here: San Diego Beach & Bay Water Quality Program
The following beaches are currently closed.
Border Field State Park | closed |
-3 Beaches Closed
in the last 7 days |
+100 from last week |
The following are public complaints about odors that have been reported to SDAPCD. More Info
County of San Diego is tracking trends in gastrointestinal and respiratory conditions in the south region. For more information and details, go to the South Region Health Concerns page.
Markers on map are not meant to show the area of impact, but rather the location of the data source.