Harmful Algal Blooms (HABs)
Toxins from harmful algal blooms (HABs) are increasingly contaminating sources waters, as well as the drinking water treatment facilities that the source waters supply. These treatment facilities face a difficult task of not only removing the toxins, but doing so in a safe and cost-effective way.
Harmful Algal Blooms (HABs) Websites
Wisconsin, Indiana, Oregon and Ohio each have algae web sites that provide information, fact sheets, and resources for the public about possible high levels of blue-green algae and the potential health effects of Cyanobacteria.
HAB Response Strategies and Resources
Web Resources and Reference Documents
- EPA Recommendations for Public Water Systems to Manage Cyanotoxins in Drinking Water – June 2015: This document includes the new health advisory levels for Microcystin and Cylindrospermopsin, information about analytical methods and treatment protocols, and an overview of the five step preliminary approach for determining whether Cyanotoxins are present in drinking water and, if so, what subsequent actions to take.
- EPA’s Web Site on Cyanobacterial Harmful Algal Blooms (CyanoHABs): EPA’s web site shares information and resources on this topic with navigation quick tabs to learn more about: what causes cyanobacterial toxins; how to prevent, detect, mitigate and treat for them; the health and ecological effects of cyanotoxins; current research activities in the U.S.; and policies and regulations for cyanotoxins at the state and international levels.
- A Water Utility Managers Guide for Cyanotoxins (AWWA and WaterRF) – April 2015: This guide addresses cyanotoxin occurrence, source water management, and treatment strategies.
- CDC Harmful Algal Bloom web site
- USGS Cyanobacteria and HABs – The USGS Cooperative Water Program has a number of publications available on this web page from various studies conducted throughout the U.S.
- Current Canada Drinking Water Quality Guideline for microcystin-LR:(This is a current guideline, please ignore the notice that says that this is archived content, this is a mistake from recent changes to web site architecture).
- Current approaches to Cyanotoxin risk assessment, risk management and regulations in different countries (2012): This paper was presented at the 8th International Conference on Toxic Cyanobacteria.