You’ve probably seen warning signs at lakes and ponds during summer months—those advisories about blue-green algae that keep swimmers and dogs out of the water. But what exactly makes these blooms dangerous? And why should we care before they show up?
The EPA is hosting a free four-part virtual symposium this March that dives deep into the health effects of cyanobacteria (the scientific name for those blue-green algae) and the toxins they produce. If you spend time near waterways, have pets, or simply want to understand what’s happening in our region’s waters, this is worth your time.
When: March 16, 18, 23, and 25, 2025 | 1:00–5:00 p.m. EST
What to Expect: Each half-day session brings together academic researchers, federal and state scientists, and tribal experts to explore how cyanotoxins affect human and animal health. There’s particular focus on domestic pets—dogs are especially vulnerable since they’re more likely to drink from or swim in contaminated water.
Harmful algal blooms are becoming more common across Pennsylvania and the Upper Ohio River Basin as water temperatures rise and nutrient pollution continues. Understanding the science behind these events helps communities respond faster and protect what matters most.
Registration details and the full agenda will be announced soon. In the meantime, learn more about the EPA’s Harmful Algal Bloom program at www.epa.gov/habs.
