hab monitoring at - water.iastate.edu · hab monitoring at iowa’s state park beaches presenter:...
TRANSCRIPT
HAB Monitoring at Iowa’s State Park
Beaches
Presenter:
Daniel KendallAmbient Lake and Beach Monitoring Coordinator
Iowa Department of Natural Resources
Description of talk
• Intro to the State Beach Monitoring Program
– Elements of the program
– Program Objectives
• Harmful Algal Blooms
– Microcystin’s & Human Health
– HAB Negative Impacts
• Wild animals
• Domestic Animals and Pets
• Fish Kills/other
• Recent events
– Utah Lake
– Toledo
• What we have learned
– Microcystin Trends (Long and Short Term)
• Questions
• 39 State Beaches are each sampled the week before Memorial Day through Labor Day.
• 29 County and City Beaches are each sampled E. coli the week before Memorial Day through Labor Day.
• Samples are analyzed by end of business on Thursday of each week.
• Data is reported out, Public website is updated, and beach signage is updated Friday of each week.
Where and when do we sample?
What do we sample for?
• Sampling Parameters– Parameters collected:
• Field (Beach):– Temperature– pH– Dissolved Oxygen (mg/L
and % saturation)– Turbidity– Wave Height and Direction– Current Weather
Conditions
• Laboratory:– E. Coli (Indicator Bacteria)
(SHL)– Microcystin toxin
(DNR)– Cylindrospermopsin toxin
(DNR)– DNA, Additional toxins,
Toxin Degraders(ISU) (EPA Star Grant)
What are the Program Objectives?• Safeguard public health at Iowa’s state-owned
and locally managed beaches.
• Informing the Public
– General information and Advisory signs at State Owned Beaches.
– Park staff, Iowa Department of Public Health notified
– Beach Monitoring Website
– Beach Monitoring Hotline
– Press releases
• Tracking long term trends.
• Biannual Water Quality Assessments, listing and reporting as a part of the 303(d) and 305(b) sections of the Federal Clean Water act.
HAB Advisory Action Levels
Action Level for Microcystin
exceeded (20µ/L)
Post Swimming Advisory
(Warning) Sign
Post Monitoring
(Watch) Sign
Harmful Algal Blooms
• Colonies of cyanobacteria (Blue-green Algae) can form blooms
• Harmful concentrations of cyanotoxinscan occur during blooms
• Blooms can develop quickly and move with the wind and current
– Causing localized high concentrations
• Biological function of toxins unclear
• Toxins may have negative impact
– aquatic life
– Wildlife
– Domestic animals
– Humans
microcystis
Microcystin’s Negative Impacts - Human Health
Microcystin Toxin exposure routes can vary and cause different health impacts• Dermal Impacts (Sources: Swimming, Wading)
– Skin irritation
– Rash
– Blistering
• Ingestion Impacts (Sources often incidental: Swimming, Water Sports)
– Gastrointestinal distress
– Muscle weakness
– Liver impacts (hepatitis)
– High doses can cause liver failure
• Inhalation Impacts (Sources: Boating, Water Skiing, Near Shore)
– Slight respiratory distress
– Severe allergic response
HAB Negative Impacts - Other• Effects on Wildlife
– Dead waterfowl, bats, and other animals in close proximity to the water
• Effect on Domestic Animals and Pets
– Cattle Deaths
• Toxins in water supply
– Pet deaths
• Drinking water
• Cleaning fur
• Effects on Fish
– Alter habitat (Algal Blooms)
• Block sunlight
• Reduce macrophyte beds
– Fish kills
• Deplete oxygen levels (Algal Blooms)
• Toxin ingestion related
– Toxins in fish
• Risk has typically been associated with the gut track (Kidneys and Liver)
• Studies show fillet tissue less affected
• New EPA research - MMPB method successfully used to detect microcystins in spiked fish tissue samples and in fish exposed to microcystins in an experimental stream
Recent events - Utah Lake 2016
Image From:EPA R8 HABS Group WebinarSeptember 29, 2016Ben HolcombUtah Department of Environmental Quality
Recent events - Utah Lake 2016
Images From:EPA R8 HABS Group WebinarSeptember 29, 2016Ben HolcombUtah Department of Environmental Quality
Utah Lake• 150 square miles surface area• Average depth is 3 meters • maximum depth ~4.5 meters
Recent events - Toledo 2014
Image From:Ohio EPA WebinarJune 7, 2016Ohio Environmental Protection Agency
Recent events - Toledo 2014
Image From: Nasa Earth Observatoryacquired August 3, 2014https://earthobservatory.nasa.gov/
What we have learned?
What we have learned?
What we have learned?
What we have learned?
What we have learned?
What we have learned?
What we have learned?
Questions
Daniel Kendall – Ambient Lake and Beach Monitoring CoordinatorIowa Department of Natural [email protected]
Questions
Daniel Kendall – Ambient Lake and Beach Monitoring CoordinatorIowa Department of Natural [email protected]
What we have learned?