Harmful Algal Blooms: A Growing Concern for Swimmers and Boaters in U.S. Waterways

Harmful Algal Blooms (HAB) are becoming a growing concern for swimmers and boaters in lakes, ponds, and streams across the country. These blooms can create dangerous conditions for both humans and animals, leading to symptoms like diarrhea, nausea, vomiting, or throat irritation. The Livingston County Department of Health recently issued a Harmful Algal Bloom Advisory for Conesus Lake, which remains in effect. Officials have assured that the public water supply is safe for drinking.

Cyanobacteria, also known as blue-green algae, are the primary culprit behind HABs. These bacteria are naturally present in aquatic systems but can become overgrown under certain conditions. Factors contributing to the formation of HABs include warm temperatures, calm winds, and certain nutrients in the water from sources such as farming runoff and sewage systems.

New York state tracks reports of harmful algal blooms on the Department of Environmental Conservation (DEC) website. Efforts have been made to control outbreaks of HABs by reducing phosphorous and nitrogen runoff from farms and sewer systems into bodies of water. However, these efforts may not always be successful in preventing HABs from occurring entirely. Swimmers and boaters should be aware of the potential dangers posed by these blooms and take precautions such as avoiding contact with affected areas of water and washing hands thoroughly after swimming or boating.