News Summary
Coronado is making strides in addressing critical water and air quality issues through initiatives by Emerald Keepers. This includes regular water testing by the County of San Diego and the establishment of air quality monitors in residential areas. A community survey highlighted alarming concerns about health impacts associated with environmental conditions, including childhood health issues and mental health implications due to the sewage crisis from Tijuana. These findings aim to inform authorities and improve public health responses in the region.
Coronado is taking decisive steps to tackle ongoing water and air quality concerns through the initiatives launched by Emerald Keepers. These efforts aim to heighten awareness and promote understanding among the community about the health impacts of environmental conditions in the area.
The County of San Diego conducts regular water testing in Coronado, ensuring that the water quality is monitored consistently. Recent reports suggest that the current air quality in Coronado is often poorer than in surrounding cities, prompting Emerald Keepers to establish air quality monitors in residential homes across the region. This initiative is part of a broader strategy to collect and publish air quality information on a weekly basis, which may help identify patterns and potential causes of the air quality issues.
In an effort to understand the impact of these environmental challenges, a recent community survey conducted in San Diego’s South Bay gathered responses from over 2,000 residents. This survey, orchestrated by the Centers for Disease Control and Prevention (CDC), revealed a significant level of concern about air quality and the safety of beach water in the area, particularly regarding the influence of sewage flows from Tijuana.
Survey Findings
The survey investigated the extent to which health issues were affecting local residents. It found that over 60% of parents reported that their children had missed school due to health problems associated with the sewage crisis. Furthermore, 34% of workers indicated they missed work due to similar health issues. Respondents commonly reported symptoms including headaches, congestion, a runny nose, and coughing, which are believed to be related to the contamination issues. Notably, 25% of pet owners also observed symptoms in their pets, such as skin, ear, and eye issues, as well as respiratory problems.
The mental health implications of the environmental crisis are also significant. The survey indicated that 28% of participants experienced anxiety while 21% reported feelings of depression connected to the ongoing sewage issues. Among the respondents, 86% lived in the affected region, with 31% frequenting it for recreational purposes, 21% working there, and 16% attending school in the area. A striking 67% of respondents communicated that they felt the area was unsafe for living, working, or visiting.
Data Integration and Public Health Responses
The results from the community survey are intended to inform local, state, and federal authorities addressing the sewage crisis. In addition to the survey, an interactive online dashboard has been created to provide real-time information on environmental conditions in South County, including current beach water quality and sewage odor data. Since 2018, the County has funded daily monitoring of beach water quality, especially in areas such as Imperial Beach and Coronado.
The newly established dashboard integrates data from various sources and outlines essential information under three categories: “What We Know,” “What We’re Doing,” and “What You Can Do.” This platform aims to support the community in making informed decisions regarding their health and safety. In recognition of the health risks posed by hydrogen sulfide gas, recent installations of warning signs in the Tijuana River Valley Regional Park have been implemented. These signs include QR codes that link the public to a dedicated County website for health and environmental updates.
Continuing Challenges
Looming over the community is the long-standing problem of untreated sewage flowing from Tijuana, resulting in an environmental and public health crisis. Hydrogen sulfide, a colorless gas that emits an odor reminiscent of rotten eggs and arises from sewage decomposition, poses ongoing risks to residents. Local health guidance currently recommends limiting outdoor activities during periods of strong odors and suggests improving indoor air quality using air purifiers.
As the situation continues to evolve, government officials emphasize the importance of cooperation with Mexican counterparts to effectively address sewage flow issues and safeguard the health of citizens in Coronado and surrounding areas.
Deeper Dive: News & Info About This Topic
HERE Resources
Lawsuit Filed Against Coronado School District After Student’s Suicide
No School Day Activities for Coronado Students
Haissam Kouli Appointed as New Student Board Member
Coronado’s Sewage Crisis: Community Takes Action
Coronado Historical Association Seeks New Executive Director
Coronado Unified School District Moves Toward Basic Aid Status
Emerald Keepers Addressing Water and Air Quality Crisis in Coronado
Coronado City Council Honors Local Hero Kris Collins
Rising Fire Danger Sparks Urgent Action in San Diego
California Senate Bill 79 Aims to Address Housing Crisis in Coronado
Additional Resources
- Coronado Water and Air Quality Report
- Wikipedia: Water Quality
- South Bay Survey on Air Quality
- Google Search: Environmental air quality Tijuana
- Warning Signs for Hydrogen Sulfide Gas
- Google Scholar: Hydrogen sulfide health effects
- Proposed Emergency Fix in Tijuana Sewage Crisis
- Encyclopedia Britannica: Public Health Issues

Author: STAFF HERE CORONADO
The Coronado Staff Writer represents the experienced team at HERECoronado.com, your go-to source for actionable local news and information in Coronado, San Diego County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the Coronado Island Film Festival, productions at Lamb’s Players Theatre, community workshops at John D. Spreckels Center, and iconic celebrations at Hotel del Coronado. Our coverage extends to key organizations like the Coronado Chamber of Commerce and Visit Coronado, plus leading businesses in hospitality, dining, and tourism that drive the local economy. As part of the broader HERE network, including HERESanDiego.com, HEREHuntingtonBeach.com, HERELongBeach.com, and HERELosAngeles.com, we provide comprehensive, credible insights into Southern California's dynamic landscape.