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Red Tide Status Update: August 7, 2026

WaterAtlas.org — Wed, 12 Aug 2026 00:00:00 GMT

Florida Fish and Wildlife Conservation Commission

Red Tide was observed at background to low concentrations in 13 samples from Florida’s East Coast, and background concentrations in seven samples along Florida’s Gulf Coast. We continue to use satellite imagery (USF and NOAA NCCOS) to help track nearshore and offshore conditions.

Additional details follow.

In Southwest Florida over the past week, K. brevis was observed at background concentrations offshore of Hillsborough County, and in Manatee, Charlotte, and Collier counties.
In Northwest Florida over the past week, K. brevis was observed at background concentrations in Wakulla County.
Along the Florida East Coast over the past week, K. brevis observed at background to low concentrations in Nassau County and background to very low concentrations in Duval County.

No Fish kills suspected to be related to red tide were reported to FWC's Fish Kill Hotline or other partners over the past week.

Respiratory Irritation suspected to be related to red tide was not reported over the past week in Florida. For forecasts that use FWC and partner data, please visit the National Oceanic and Atmospheric Administration’s Gulf Coast Harmful Algal Blooms Forecast.

Short-term (3.5 day) forecasts by the USF-FWC Collaboration for Prediction of Red Tides predict northwestern movement of surface waters in most areas and variable transport of subsurface waters from Pinellas to northern Monroe counties.

The next status report will be issued on Friday, August 14. Please check our daily sampling map, which can be accessed via the online status report on our Red Tide Current Status page. For more information on algal blooms and water quality, please visit Protecting Florida Together.

This information, including maps and reports with additional details, is also available on the FWRI Red Tide website. The website also provides links to additional information related to the topic of Florida red tide including satellite imagery, experimental red tide forecasts, shellfish harvesting areas, the FWC Fish Kill Hotline, the Florida Poison Information Center (to report human health effects related to exposure to red tide), and other wildlife related hotlines.

To learn more about various organisms that have been known to cause algal blooms in Florida waters, see the FWRI Red Tide Flickr page. Archived status maps can also be found on Flickr.

Please follow our facebook page for status updates and other interesting facts about red tide and other harmful algal blooms in Florida.

A majority of Florida waterways are polluted. But environmental enforcement is lacking

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

A majority of Florida waterways are failing water quality standards, even as the state’s pollution enforcement remains near historic lows, according to a new report.

The report was published by Public Employees for Environmental Responsibility, or PEER, and Waterkeepers Florida, a coalition that is part of the international Waterkeeper Alliance. It is based on 37 years of environmental enforcement data, plus data from the Florida Department of Environmental Protection’s latest statewide, comprehensive water quality analysis.

Data takeaways

Of more than 4,200 water bodies assessed by FDEP, just over 52% are not meeting water quality standards, according to the state’s comprehensive analysis released earlier this year. For another 15% of assessed water bodies, there isn’t enough data to determine whether or not standards are being met.

In Central Florida, some water bodies failing to meet water quality standards include Lake Jesup (impaired by nutrients), portions of Lake Apopka (impaired by nutrients, plus pesticides found in fish tissue) and parts of the Econlockhatchee River (impaired by e-coli and nutrients), according to FDEP.

Statewide, most water body impairments are driven by high concentrations of nutrients and fecal bacteria, as well as low levels of dissolved oxygen, according to FDEP.

PEER’s analysis of state enforcement data reveals that “a steady decline” in enforcement actions began once former Governor Rick Scott took office in 2011.

The report states that “the Scott administration favored development interests at the expense of environmental protections.”

Between 1988 and 1995, FDEP took action to enforce protective environmental laws in an average 1,048 cases per year. That number plummeted to 431 cases a year, on average, between 2011 and 2018, Scott’s last full year in office.

When Governor Ron DeSantis took over in 2019, he was more publicly supportive of protective environmental programs than Scott had been, according to the PEER report. In DeSantis’ first year in office, the number of environmental enforcement actions temporarily rose, from 371 actions taken in 2018 to 742 in 2020.

After 2020, though, FDEP enforcement actions declined again. They’ve since ticked back up slightly, rising from 579 actions taken in 2023 to 755 in 2025.

Still, “enforcement actions initiated under Governor DeSantis are still less than half of what they were in 2010,” according to the report.

Florida’s pollution protections ‘don’t go far enough’

Lisa Rinaman is the riverkeeper, or chief advocate, at St. Johns Riverkeeper, one of 15 member groups making up Waterkeepers Florida. Rinaman said the findings in the report co-published with PEER are a “significant concern.”

“It's alarming for a state like Florida, where everything depends on clean water, from an economic perspective,” Rinaman said. “Our tourism, our growth; just our quality of life, agriculture.”

Although state rules and protections enacted to reduce nutrient pollution in water bodies like the St. Johns River have worked “to some degree,” Rinaman said, they don’t go far enough — especially because enforcement is lacking.

“This [report] just demonstrates that, those protections that have been in place, they're too lax. They don't go far enough,” Rinaman said. “And then, if you're not enforcing it to ensure that what the model is telling you is what's happening in reality …. then it's really not as good as the paper it's written on.”

Looking forward

The report by PEER and Waterkeepers Florida finds “a growing number of Florida’s water bodies, including estuaries and lakes, fail to meet water quality standards.” However, “the quality of coastal waters and streams has improved somewhat.”

Another piece of good news, Rinaman said, is a provision in Florida’s farm bill, approved by lawmakers earlier this year, that will outlaw the land application of Class B biosolids by 2028. Those Class B biosolids are made up of sewage sludge that’s been treated to reduce (not eliminate) pathogens and toxic chemicals.

However, DeSantis vetoed another bill that would have created protective regulations for Class AA biosolids, which is sewage sludge that’s been treated to a higher level than Class B biosolids.

“That's just going to continue to add to our nutrient pollution problems that we're seeing throughout the state of Florida,” Rinaman said.

After this story published, FDEP shared a statement which reads in part: "The Department disagrees with PEER's 2025 Florida Enforcement Report as it leaves out important context, overly focuses on historical metrics and ignores the significant strides Florida has made in restoring and protecting Florida's waterways."

FAU awarded US EPA grant for AI-driven technology to combat harmful algal blooms

WaterAtlas.org — Mon, 10 Aug 2026 00:00:00 GMT

Harmful algal blooms (HABs) have become an increasingly common threat to lakes, rivers and coastal waters across the United States, endangering drinking water supplies, aquatic ecosystems, public health and local economies. Now, researchers at Florida Atlantic University are developing an innovative technology that could help stop these blooms before they spread.

FAU’s College of Engineering and Computer Science has received an $800,475 grant from the Gulf of America Division of the U.S. Environmental Protection Agency to develop an artificial intelligence-guided system that removes excess phosphorus – one of the primary drivers of HABs – from freshwater systems. The three-year project began July 1.

The project, titled “AI-Guided Use of 3D-Printed Adsorbents for Phosphate Removal,” is led by principal investigator Masoud Jahandar Lashaki, Ph.D., an associate professor in FAU’s Department of Civil, Environmental and Geomatics Engineering. Co-principal investigators are Yalan Liu, Ph.D., an assistant professor, and Mohammed Abdellatef, Ph.D., an assistant professor both from FAU’s Department of Civil, Environmental and Geomatics Engineering. Huichun (Judy) Zhang, Ph.D., of Case Western Reserve University, will serve as the project’s sub-awardee.

Excess phosphorus entering lakes and waterways from agricultural runoff, wastewater, failing septic systems and urban stormwater fuels explosive algal growth. These HABs can cloud waterways, deplete oxygen needed by fish and other aquatic life, produce toxins dangerous to people, pets and wildlife, and cause significant economic losses for communities that depend on clean water for tourism, recreation and fishing.

Lake Okeechobee, one of Florida’s most important freshwater resources, has experienced recurring HABs fueled by elevated nutrient levels. Because the lake sits at the headwaters of the Gulf of America watershed, phosphorus flowing downstream affects numerous rivers, estuaries and coastal ecosystems, making nutrient reduction in the lake critical to improving water quality throughout the region.

Current methods for removing phosphorus often are costly, produce waste or present environmental challenges when used on a large scale. Some chemical treatments generate large amounts of sludge, while biological approaches require tightly controlled conditions that are difficult to maintain outside treatment facilities. For example, although lanthanum-based materials are highly effective at capturing phosphorus, they typically are applied as fine powders that settle into lake sediments, where they can slowly release lanthanum back into the environment. The FAU-led team aims to overcome these limitations by combining advanced manufacturing with AI.

Researchers will develop durable, retrievable 3D-printed structures made from sargassum, a naturally abundant seaweed, which are modified with lanthanum to capture phosphorus from both the water column and lake sediments. Unlike conventional powdered materials, the 3D-printed structures can be deployed, retrieved, regenerated and reused, significantly reducing waste and minimizing the potential for lanthanum to enter the environment.

“This award provides an exciting opportunity to transform how we manage one of the most persistent causes of harmful algal blooms,” said Lashaki. “By combining sustainable 3D-printed materials with the power of AI, we can develop a smarter, more effective and environmentally responsible solution for removing phosphorus from our waterways. This funding allows us to accelerate the development and field testing of this technology while creating a model that can ultimately benefit freshwater ecosystems far beyond Florida.”

AI and machine learning will play a central role throughout the project. Researchers will use AI to rapidly identify the most effective adsorbent formulations, determine the optimal locations for deploying the structures and predict where phosphorus removal will have the greatest impact on preventing HABs. By integrating environmental monitoring data with information on land use, weather patterns, fertilizer applications, livestock operations and septic systems, the technology will help guide more precise nutrient management strategies.

The project also will demonstrate the technology in Lake Okeechobee under real-world conditions. Researchers will monitor improvements in water quality, water clarity and reductions in HABs using field sampling, publicly available environmental data and unmanned aerial vehicles. The resulting dataset will be shared through the U.S. EPA’s Water Quality Exchange to help other communities adopt similar approaches.

Beyond improving water quality in Lake Okeechobee, the technology is designed to be scalable and transferable to lakes, reservoirs and watersheds throughout the U.S. and around the world facing similar nutrient pollution challenges. The project is expected to reduce phosphorus levels in Lake Okeechobee, improve water quality and clarity, decrease the frequency and severity of HABs, reduce downstream nutrient pollution throughout the Gulf of America watershed, and demonstrate a reusable technology that can be adapted for watersheds worldwide.

“This award exemplifies the innovative, interdisciplinary research taking place in our college to address some of society’s most pressing environmental challenges,” said Stella Batalama, Ph.D., dean of FAU’s College of Engineering and Computer Science. “Professor Lashaki and his collaborators are developing a solution that combines advanced manufacturing, AI and environmental engineering to protect one of Florida’s most important natural resources. The impact of this work extends well beyond our state, offering a scalable approach that has the potential to improve water quality and protect ecosystems in communities around the globe.”