We are starting two rulemakings to update Washington’s water quality standards to help address freshwater nutrient pollution and the harmful, toxic algal blooms that can result from it.

An underwater bloom of toxic algae has wreaked havoc off the coast of South Australia since mid-March 2025. After eight ...

The following is a press release from the Humboldt County Department of Health and Human Services: A recent sampling event confirming dangerous levels of harmful algal toxins identified in Big Lagoon ...

When researchers sampled brain tissue of stranded dolphins, they found Alzheimer’s disease-like developments and drastically ...

A long-term analysis shows that a major Oregon reservoir abruptly swapped one type of toxic algae for another midway through ...

KINGSTON, N.Y. — Isolated regional sightings of a large, toxic and widespread harmful algae bloom have sparked concern in Hudson River communities and the closure of Kingston Point Beach, Riverkeeper ...

KINGSTON, N.Y. (NEWS10) — The Department of Environmental Conservation warned of a harmful algal bloom that is spreading throughout the Hudson River in parts of Downstate. A scientist with Riverkeeper ...

The City of Boulder is asking residents to keep themselves and their pets out of the water at the Boulder Reservoir due to a possible harmful algae bloom. Although the swim beach is closed for the ...

The South Australian opposition has pledged a $21-million voluntary fisheries buyback scheme, if it is elected next year, to ...

BOZEMAN, Mont. — Harmful algal blooms are confirmed at the Elk Grove Pond in the Elk Grove Subdivision south of Four Corners. Officials put the pond under a closure advisory and ask the public not to ...

Health New Zealand, National Public Health Service has issued a health warning for Waihao River at Gum Tree Flat Rd (Don's Hole) The warning follows finding moderate to high cover of potentially ...