Pea-soup green pigment floated where the water met the shore on Eagle Nest Lake on Tuesday, while bright, turquoise pigment stained the south boat ramp. In the water, a flurry of blue-green algae ...

Cyanobacteria is widespread in the lake and other waterbodies across the region, but when warm, still, nutrient-rich (read: full of phosphorus) water induces a proliferation of the microscopic algae, ...

While it may seem like a good place to stop and go for a dip, this lake in Utah is extremely dirty. It's highly advised not to go swimming here.

Scientists monitoring the river this year observed the worst blooms in decades, and say they're uncommon in flowing water.

Thursday, the Department of Health and Human Services lifted harmful algal bloom advisories in Humboldt County and recapped ...

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 ...

Neurotoxin levels were highest in the dolphins stranded during warmer months, when harmful algal blooms are more severe.

Scientists have found an algal toxin is causing similar signs to Alzheimer's disease in Indian River Lagoon dolphins' brains ...

A harmful algae bloom– or H-A-B — is starting to clear up along the Hudson River after a stretch of late summer heat and ...

"They are amazingly resilient animals." Scientists issue warning after observing concerning change in dolphins' behavior: ...