Largest algal bloom in 40 years discovered in Hudson River. See where

Hudson River researchers detected large amounts of algal bloom, a toxic bacteria that can be harmful to pets and humans, between Kingston and Norrie Point in Staatsburg.

The massive bloom, said to be the largest amount detected in the Hudson in 40 years, was discovered on Sept. 12 by researchers at the Cary Institute of Ecosystem Studies.

The bacteria known as Microcystis can be harmful if ingested or inhaled and can cause skin irritation, the researchers say. Dogs can be particularly at risk if they drink contaminated water.

“The magnitude and extent of this cyanobacteria bloom is unprecedented, and concerning,” said Chris Solomon, a senior scientist and aquatic ecologist at Cary. “While Microcystis is often observed in the Hudson, and sometimes produces blooms, this is by far the larg