Since 1998, The Contaminated Site Clean-Up Information (CLU-IN) website has presented Internet Seminars covering a wide variety of technical topics related to hazardous waste characterization, monitoring, and remediation. For each seminar topic, we have selected the highest-quality offering for placement in our archives. Beginning in May 2005, we began offering these archives via podcast, and this feed contains all seminars archived in the last 6 months. For a complete list of seminars archived since 2000 and videos of selected seminars archived since 2012, please visit http://clu-in.org/live/archive/. Our Rehabilitation Act Notice for reasonable accommodation is available at http://clu-in.org/training/accommodation.cfm. CLU-IN was developed by the U.S. Environmental Protection Agency (EPA) but is intended as a forum for all waste remediation stakeholders. For more information and to view upcoming live offerings, please visit http://clu-in.org/live/. For a complete list of RSS feeds available on CLU-IN, please visit http://clu-in.org/rss/about/.
http://www.clu-in.org/live/archive
Audio for "Strategies for Preventing and Managing Harmful Cyanobacteria Blooms (Two Part Series)," Oct 12, 2023
The Harmful Cyanobacteria Blooms (HCBs) training reviews key information found in the two ITRC HCB Guidance Documents, the 2021 Strategies for Preventing and Managing Harmful Cyanobacterial Blooms (HCB-1) and the 2022 companion document focused on benthic HCBs (HCB-2). ITRC's HCB-2 focuses on the ecology, toxin production, management, and mitigation of benthic HCBs and is a companion document to the HCB-1 document released by ITRC in March 2021. Cyanobacteria are microscopic, photosynthetic organisms that can be found naturally in all aquatic systems. Under certain conditions, cyanobacteria can multiply and become very abundant, discoloring the water throughout a water body, or accumulating at the surface. These occurrences are known as "harmful cyanobacterial blooms (HCBs)." HCBs can occur in many parts of a water body. Planktonic HCBs occur when cyanobacteria dominate the open water of water bodies. ITRC's HCB-1 guidance includes information about planktonic HCBs. In addition to being suspended in the open water, some cyanobacterial species grow attached to surfaces in a water body. These attached cyanobacteria can grow at the bottom of a water body (benthic zone) but may also be found nearer to the surface growing on submerged vegetation or woody debris. In any of these habitats the benthic cyanobacterial mats can produce and release cyanotoxins into the environment. When cyanobacteria proliferate as attached mats in benthic habitats instead of planktonic blooms, they present unique challenges to evaluating and communicating the public health and environmental risks caused by this less familiar appearance of cyanobacteria. HCB-1 Training The Harmful Cyanobacteria Bloom (HCB-1) training provides an overview of cyanobacteria (particularly planktonic blooms) and their management, covering five sections from the ITRC HCB-1 guidance document:Introduction to the Cyanobacteria (Section 3)Monitoring (Section 4)Communication and Response Planning (Section 5)Management and Control (Section 6)Nutrient Management (Section 7) HCB-2 Training The Benthic Harmful Cyanobacteria Bloom (HCB-2) training provides an overview of benthic cyanobacteria and their management, covering five sections from the ITRC HCB-2 guidance document:Introduction to the Benthic Cyanobacteria (Section 1)Cyanotoxins (Section 2)Monitoring for Benthic Cyanobacteria (Section 3)Introduction to Treatment Strategies (Section 4)Communication and Response Planning for Benthic Cyanobacteria (Section 5) After both training's, you should understand:The basic ecology and physiology of planktonic and benthic cyanobacteria, and the harmful effects they have on health, the environment, and local economiesAn overview of cyanotoxin classes and available cyanotoxin thresholds for human health (recreational and drinking water) and domestic animalsCommon approaches to monitoring for cyanobacteria and cyanotoxins, and how to build a monitoring programThe importance of good communication and coordinated response during HCBs, and the elements of a good response planAvailable options for in-lake management and control of HCBs, including an introduction to possible treatment options for benthic cyanobacteriaNutrient management options to reduce the likelihood of HCBs in your water body We encourage you to use the ITRC HCB Resources (HCB-1 and HCB-2) and the recorded trainings to learn about planktonic and benthic cyanobacteria, monitoring approaches, management of active blooms, and prevention of blooms in the future. For regulators and other government agency staff, these materials present the current state of the science on cyanobacteria and approaches to manage and reduce the occurrence of blooms. We share examples and resources from across the country that can help you develop approaches of your own. While the training makes every effort to keep the information accessible to a wide audience, it is assumed that the participants will have some basic technical understanding of biology, lake management, chemistry, and environmental sciences. As with other emerging concerns, our understanding of HCBs continues to advance. These trainings help you build HCB response plans now and point you to resources that will keep you up to date in the future. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/HCB-2_101223/