San Diego County Air Pollution Control District

Subscribe to receive H₂S Air Quality Advisories! H₂S Air Quality Advisories are issued when hydrogen sulfide levels are above 30 ppb and are available via text and email notifications. Sign up: bit.ly/3DVuC2y. View the latest H₂S levels at sdapcd.org/H2S-Monitoring.

The #USIBWC reports the following Mexican Sewer System Failures that will impact the South Bay International Wastewater Treatment Plant (SBIWTP) in #SanDiegoCA and American citizens in the area. The USIBWC is monitoring emergency repairs beginning tonight to repair a leak on the Parallel Gravity Line that conveys wastewater in Tijuana. USIBWC has been in close contact with Mexico, demanding they take every action possible to eliminate additional wastewater from going into the Tijuana River and entering the United States. During this repair, which is expected to take at least 24 hours, pump stations PBCILA and PB1 will be offline and flow from the Tijuana sanitation system will be sent to SBIWTP. Area residents may notice increased wastewater flows in the Tijuana River Channel due to the pump stations being offline along with stronger odors. Other possible impacts are beach closures and health risks if untreated or partially treated wastewater reaches U.S. waters. Since flows to Smuggler's Gulch canyon collector is possible, USIBWC is implementing proactive mitigation measures to stop or reduce the transboundary flows at the gulch. Staff and equipment are positioned at the collector to respond. Commissioner @USIBWCCMcIntosh has informed @cilamexico transboundary flows are unacceptable and the United States expects Mexico to take all necessary actions to stop any flows.

CA’s Low Carbon Fuel Standard is delivering $1B in rebates for electric drayage trucks, semis, box trucks, delivery vans & more. Dealers can register now for the Clean Fuel Reward Program and help power CA’s electric future: cleanfuelreward.com ➡️ bit.ly/4fjGPyq

Don't forget to apply! Applications are still being accepted for clean air projects working towards reducing emissions throughout San Diego County. Deadline to apply is May 15, 2026. To learn more about eligible projects and program details, visit sdapcd.org/grants

If you haven’t already shared comments on the FY 26-27 Recommended Budget, there is still time to provide feedback! To share your thoughts, visit sdapcd.org/budget. Join our Budget Hearing on May 14, 2026 @ 5PM. To learn how to participate, visit ow.ly/pVRi50XC1fW

Thursday’s theme is Air, Animals, and Plants! Air pollution can also have an impact on the health of animals, plants, & our ecosystem. To help reduce air pollution you can: • Save energy at home💡 • Ride a bike 🚲 • Choose eco‑friendly products ♻️ #AQAW2026 #Animals #Plants

The topic for today is Indoor Air Quality. Improving indoor air quality is essential because we spend most of our time indoors, making the air in our homes important for protecting our long‑term health. To learn more, visit epa.gov/indoor-air-qua…. #AQAW2026 #IndoorAirQuality

Tuesday’s topic is Asthma & Your Health. SDAPCD continues to protect public health by: • Sharing current air quality conditions • Offering program funding to reduce emissions • Investigating Air Quality Concerns To learn more, visit sdapcd.org #SDAPCD #AQAW2026

Today is the start of #AQAW2026! The topic for today is Wildland Fires and Smoke. Did you know that SDAPCD issues Smoke Advisories? This helps to keep the public informed about potential smoke in the air that may be harmful to public health. More info: sdapcd.org/air-quality.

Don’t Forget! Share your comments on the FY 26-27 Recommended Budget. 💬 To review the budget and provide feedback, visit sdapcd.org/budget. Please join us for our budget hearing on Thursday, May 14, 2026, at 5pm

Check out SDAPCD's latest air quality updates in our quarterly newsletter! To read our newsletter, visit sdapcd.org/community

Join CARB & @CALSTART on April 29 for the Zero-Emission Showcase + #RideAndDrive event in San Diego. Register now to test drive zero-emission vehicles and off-road equipment and learn about CARB programs, incentives, and available resources. bit.ly/4douubd

SDAPCD was excited to take part this past weekend in the South Bay Earth Day Celebration! 🌎 Staff connected with community members, offering valuable insights into our programs & sharing practical tips for adopting greener habits.

The SDAPCD FY 26-27 Recommended Budget is available for public review. We invite you to share your feedback on the budget and to join us for our next budget meeting! 🔗sdapcd.org/budget 📧APCDPublicComment@sdapcd.org 📅 May 14, 2026, at 5:00PM

Ready to replace your old vehicle with a cleaner ride? Clean Cars 4 All incentives are now available! San Diego County residents may be eligible to receive up to $12,000 for trading in their vehicle for a new or used EV 🚗 To learn more & to apply visit, sdcc4a.org

The Grants and Incentives application period is now OPEN! SDAPCD is offering funding for clean air projects working towards reducing emissions throughout San Diego County. ⚡💡 Apply by May 15, 2026! 📅 Learn more about the program & apply at sdapcd.org/grants 🔗

** H₂S AIR QUALITY ADVISORY*** AFFECTED AREAS: South San Diego County Communities INCIDENT: Elevated levels of Hydrogen Sulfide (H2S) For more information visit, ow.ly/ZxzX50VCsCR For info on the Community Hydrogen Sulfide Guidance, visit sdapcd.org/H2S-Monitoring

** H₂S AIR QUALITY ADVISORY*** AFFECTED AREAS: South San Diego County Communities INCIDENT: Elevated levels of Hydrogen Sulfide (H2S) For more information visit, ow.ly/ZxzX50VCsCR For info on the Community Hydrogen Sulfide Guidance, visit sdapcd.org/H2S-Monitoring

** H₂S AIR QUALITY ADVISORY*** AFFECTED AREAS: South San Diego County Communities INCIDENT: Elevated levels of Hydrogen Sulfide (H2S) For more information visit, ow.ly/ZxzX50VCsCR For info on the Community Hydrogen Sulfide Guidance, visit sdapcd.org/H2S-Monitoring

** H₂S AIR QUALITY ADVISORY*** AFFECTED AREAS: South San Diego County Communities INCIDENT: Elevated levels of Hydrogen Sulfide (H2S) For more information visit, ow.ly/ZxzX50VCsCR For info on the Community Hydrogen Sulfide Guidance, visit sdapcd.org/H2S-Monitoring