Residents near Lake Erie are well-acquainted with cautions regarding blue-green algae outbreaks. Advisories include refraining from swimming, keeping pets away from the water, and avoiding ingestion. Exposure to these blooms may result in skin irritations, throat discomfort, or eye redness.
Researchers are exploring the potential risks of inhaling algae particles that become airborne. Led by David Kennedy, a medicine professor at the University of Toledo, the Great Lakes Center for Freshwater and Human Health is overseeing the study. The project, ongoing for about two and a half years, aims to understand the health effects of airborne toxins from algae, with an anticipated five-year duration for the initial phase.
The Great Lakes Aerosol Monitoring Research Study (GLAMR) focuses on individuals residing, working, or engaging in recreational activities in the western basin of Lake Erie. The investigation aims to identify health impacts on both healthy individuals and those potentially more vulnerable to these toxins due to increased exposure.
Over 200 participants have contributed samples for analysis, marking three-quarters of the study’s target. Kennedy emphasizes the importance of discerning varying responses to toxins among individuals for public health purposes.
The study incorporates a collaborative effort between air and water experts alongside medical professionals to collect samples like blood, urine, breath, and nasal swabs for analysis. The research seeks to shed light on the long-term effects of inhaling algae toxins, distinct from the immediate impacts of ingestion.
Airborne toxins from algae can travel significant distances and linger in the air for extended periods, potentially affecting coastal communities beyond lake proximity. Symptoms linked to exposure resemble asthma, often peaking during summer blooms, known colloquially as “August cough.”
While long-term data on airborne algae’s health effects is lacking, experts highlight the heightened sensitivity of lungs to inhaled toxins compared to ingested ones. Understanding the movement of airborne algae is crucial, given the challenges in controlling air pollution compared to water contamination.
Andrew Ault, a chemistry professor at the University of Michigan, underscores the need to mitigate the sources of airborne toxins for public safety. The study aims to provide communities with insights to navigate hazardous air conditions effectively, potentially advising precautionary measures like using air purifiers during high-risk periods.