Avoid and report any suspected HABs

August 03, 2023| Environment, Safety

By: Holly Odgers

A freshwater Harmful Algal Bloom (HAB) is caused by cyanobacteria, which can resemble and behave like algae. High temperatures and excess nutrient levels can lead to an unhealthful proliferation or "bloom" of these naturally occurring bacteria. These blooms can form dense green mats resembling pea soup or spilled paint on the water's surface.

If you observe what you think might be a HAB, you can report it to the New Jersey Department of Environmental Protection (NJDEP) through THIS FORM. 

Health Concerns 

According to the NJDEP website, "Exposure to cyanobacteria cells can cause a range of mild to moderate health effects, including rashes, allergy-like reactions, flu-like symptoms, gastroenteritis, respiratory irritation, and eye irritation. Incidental ingestion of water containing the toxins these bacteria can produce, known as cyanotoxins, can result in more serious health effects such as liver toxicity and neurological effects. Children and pets are more vulnerable because they ingest more water in relation to their weight."

Testing Results and Alert Index 

Visit NJDEP’s interactive HAB Dashboard to view HAB testing results by location. All results remain on the map for the year, so please note the date of the sample for current information. A color-coded health alert index is used to provide the public with guidance on suitable recreational activities in water bodies impacted by harmful algal blooms.

All of the links included in this post along with additional HAB information can be found on NJDEP’s HAB resource page.