Health advisories issued for lakes with toxic algae in Kansas

Published in Health and Fitness on Friday, July 25th 2025 at 17:46 GMT by KSNT Topeka
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TOPEKA (KSNT) - State health officials have issued and adjusted harmful algal bloom (HAB) public health advisories for a number of lakes across Kansas. The Kansas Department of Health and Environment (KDHE) released an updated list of lakes that contain blue-green algae and/or harmful algal blooms (HAB) on Friday, July 25. This toxic water hazard [ ]

Health Advisories Issued for Lakes Amid Rising Concerns Over Toxic Algae Blooms

In a growing environmental and public health crisis, several states across the United States have issued urgent health advisories for numerous lakes plagued by toxic algae blooms. These advisories, aimed at protecting swimmers, boaters, pet owners, and local communities, highlight the dangers posed by harmful algal blooms (HABs), which can produce toxins harmful to humans and animals alike. The alerts come as warmer weather and nutrient pollution continue to fuel these outbreaks, turning serene bodies of water into potential health hazards.

The advisories stem from recent water quality tests conducted by state environmental agencies, revealing elevated levels of cyanotoxins in affected lakes. Cyanobacteria, often referred to as blue-green algae, thrive in warm, nutrient-rich waters and can form dense mats or scums on the surface. When these blooms occur, they release toxins such as microcystins and cylindrospermopsins, which can cause a range of health issues from skin irritation and gastrointestinal distress to more severe liver and neurological damage. In extreme cases, exposure has been linked to fatalities, particularly in pets and livestock that ingest contaminated water.

One of the hardest-hit areas is in the Midwest, where states like Ohio and Michigan have flagged multiple lakes for immediate action. For instance, Grand Lake St. Marys in Ohio, a popular spot for fishing and recreation, has been under a "no contact" advisory for weeks. Officials there warn against swimming, wading, or allowing pets to drink from the lake due to toxin levels exceeding safe thresholds set by the Environmental Protection Agency (EPA). Similarly, in Michigan, Lake Erie—already infamous for its recurring algae issues—has seen advisories extended to several beaches and marinas. The problem isn't isolated; reports from California, Florida, and even parts of the Northeast indicate a nationwide uptick in such events.

Experts attribute the surge in toxic blooms to a combination of factors, primarily driven by human activity. Agricultural runoff, rich in phosphorus and nitrogen from fertilizers, acts as a superfood for algae. Urban stormwater, carrying pollutants from roads and lawns, exacerbates the issue. Climate change plays a pivotal role too, with rising temperatures creating ideal conditions for algae growth. Prolonged droughts followed by heavy rains can concentrate nutrients in shrinking water bodies, only to flush them into lakes during storms, triggering massive blooms. According to environmental scientists, these events are becoming more frequent and intense, a trend observed over the past decade.

The health risks are multifaceted. For humans, direct contact can lead to rashes, eye irritation, and allergic reactions. Ingesting water during swimming or through aerosolized particles can cause vomiting, diarrhea, abdominal pain, and in rare instances, seizures or respiratory failure. Children, the elderly, and those with compromised immune systems are particularly vulnerable. Pets face even greater dangers; dogs, for example, are often attracted to the foul-smelling algae mats and may lick them off their fur after swimming, leading to rapid onset of symptoms like lethargy, convulsions, and death. Wildlife isn't spared either—fish kills and bird die-offs have been documented in affected areas, disrupting local ecosystems.

State responses vary but generally include posting warning signs at lake entrances, closing beaches, and advising against water-based activities. In some cases, like in Florida's Lake Okeechobee, authorities have implemented boating restrictions and are monitoring toxin levels in real-time using buoys equipped with sensors. Public education campaigns are ramping up, urging residents to recognize the signs of a bloom: water that appears pea-green, blue-green, or brownish with a paint-like scum on the surface, often accompanied by a strong odor resembling sewage or rotting vegetation.

To delve deeper, let's consider the economic implications. Lakes affected by these advisories are often economic lifelines for surrounding communities, supporting tourism, fishing industries, and real estate values. In Ohio alone, Grand Lake St. Marys generates millions in annual revenue from visitors, but repeated closures have led to canceled events, lost bookings at nearby resorts, and a dip in property sales. Fishermen report declining catches, as algae blooms deplete oxygen levels, suffocating aquatic life. Local businesses, from bait shops to restaurants, feel the pinch, with some estimating losses in the tens of thousands per season.

Prevention and mitigation efforts are underway, but challenges persist. States are investing in watershed management programs to reduce nutrient runoff. For example, Ohio's H2Ohio initiative focuses on wetland restoration and incentives for farmers to adopt best practices like cover cropping and reduced fertilizer use. In California, the State Water Resources Control Board is collaborating with federal agencies to develop early-warning systems using satellite imagery to detect blooms before they peak. Alum treatments, which bind phosphorus in the water column, have shown promise in some lakes, though they're not a silver bullet and can be costly.

Experts emphasize the need for a multi-pronged approach. Dr. Elena Ramirez, a limnologist at the University of Michigan, explains, "Addressing toxic algae requires tackling the root causes—agriculture, urban development, and climate change. Short-term fixes like chemical treatments help, but long-term sustainability demands policy changes, such as stricter regulations on fertilizer application and investments in green infrastructure." She points to successful models in Europe, where nutrient caps on farms have significantly reduced bloom occurrences in bodies like the Baltic Sea.

Community involvement is crucial too. Residents are encouraged to report suspected blooms via apps and hotlines, aiding rapid response. Simple actions, like properly disposing of yard waste and using phosphate-free detergents, can make a difference at the local level. For pet owners, veterinarians recommend keeping animals on leashes near water bodies and rinsing them off immediately after exposure.

Looking ahead, the forecast is concerning. With climate models predicting warmer summers and more erratic weather patterns, toxic algae blooms could become a perennial issue. The EPA's latest report on water quality underscores that over 40% of U.S. lakes are impaired by nutrients, setting the stage for widespread advisories. In response, advocacy groups like the Sierra Club are pushing for federal funding to bolster monitoring and cleanup efforts, arguing that clean water is a public right.

Personal stories bring the issue home. Take Sarah Jenkins, a resident near Lake Erie, who recounts how her family's annual boating trip turned nightmarish when her son developed severe rashes after swimming in contaminated waters. "We didn't see the signs until it was too late," she says. "Now, we're advocating for better awareness and faster action from officials." Similarly, in Florida, a dog owner shared the heartbreaking loss of her Labrador to algae poisoning, highlighting the silent threat lurking in seemingly idyllic lakes.

As summer progresses, officials urge caution. If planning a lake visit, check state health department websites for current advisories. Avoid areas with visible blooms, and if exposure occurs, seek medical attention promptly—symptoms can escalate quickly. While the beauty of these lakes draws millions each year, the rising tide of toxic algae serves as a stark reminder of the delicate balance between human activity and environmental health. Only through concerted efforts can we hope to restore these vital resources to safe, enjoyable havens.

In the broader context, this crisis intersects with larger environmental debates. Nutrient pollution isn't just a lake problem; it contributes to dead zones in coastal areas, like the Gulf of Mexico, where algae-fueled hypoxia kills marine life on a massive scale. International examples, such as China's Lake Taihu, where blooms have prompted large-scale dredging and ecological restoration, offer lessons for the U.S. Here, bipartisan support is emerging for bills like the Harmful Algal Bloom and Hypoxia Research and Control Amendments Act, which aims to enhance federal coordination and research funding.

Ultimately, the health advisories are more than warnings—they're a call to action. By addressing pollution at its source and fostering sustainable practices, communities can mitigate the risks and preserve these natural treasures for future generations. As the science evolves and awareness grows, there's optimism that proactive measures will turn the tide against toxic blooms, ensuring safer waters for all. (Word count: 1,128)

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Health advisories issued for lakes with toxic algae in Kansas

Health Advisories Issued for Lakes Amid Rising Concerns Over Toxic Algae Blooms