Public Health Response to Algal Blooms In Florida Andrew Reich, - - PowerPoint PPT Presentation

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Public Health Response to Algal Blooms In Florida Andrew Reich, - - PowerPoint PPT Presentation

Jun 21, 2023 264 likes •706 views

1 Public Health Response to Algal Blooms In Florida Andrew Reich, Bureau of Environmental Health Lake O, Sentinel 3 Image: NOAA 7/10/18 Gulf of Mexico HAB Bulletin: NOAA 8/13/18 Karenia brevis Red Tide Cyanobacteria Bloom 2 Press Reports

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Public Health Response to Algal Blooms

Andrew Reich, Bureau of Environmental Health

In Florida

Gulf of Mexico HAB Bulletin: NOAA 8/13/18 Lake O’, Sentinel 3 Image: NOAA 7/10/18

Karenia brevis Red Tide Cyanobacteria Bloom

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Press Reports

TC Palm (USA Today) 8/9/18

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Karenia brevis Red Tide

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Ben Depp, National Geographic 8/8/18

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Red Tide in Florida?

4 floridapolitics.com WIKIMEDIA COMMONS

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Red Tide in Florida?

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“Other” Red Tides

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California. Italian Alps Hong Kong Mexico China

Woods Hole Oceanographic Institution

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Distribution of HABs in the US

Source: U.S. National Office for Marine Biotoxins and Harmful Algal Blooms

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Freshwater: Cyanobacteria

  • Microcystis, Anabaena, Cylindrospermopsis

Oscillatoria, Aphanizomenon

8 News-Press (USA Today) 7/14/18 Cape Coral, Florida

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Red Tide vs. BG algae

Compare

  • Single Cells
  • Aquatic Organisms
  • Photosynthetic
  • Produce Toxins
  • Naturally Occurring
  • Do not accumulate in

fish fillets

Contrast

  • Marine vs. Freshwater
  • One vs. Many Species
  • One vs. Many Toxins
  • Aerosols vs Not Airborne
  • Unknown why bloom vs.

known association with nutrients

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Florida Red Tide

Positive Samples, 1954 to Present

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Approved Shellfish Harvesting Areas

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Red Tide Events

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Red Tide Events

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Red Tide Events

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Red Tide Events

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Red Tide Sampling 1954 - 2013

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NOAA Gulf of Mexico

  • Harmful Algal Bloom Bulletin

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HAB Bulletin

  • Potential for Respiratory Irritation

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PbTx

Bubble-mediated Transport

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Mote Marine Laboratory and Aquarium

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Mote Marine Laboratory and Aquarium

Sarasota County: Inland Transect Sampling Locations 21

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Cyanobacteria/Blue-Green Algae

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Chad Gillis, Fort Myers News-Press

  • Sept. 14, 2018

Shepard Park on the St. Lucie River near downtown Stuart June 12, 2018. (Allen Eyestone / The Palm Beach Post

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  • Cyanotoxins: microcystins, anatoxins,

cylindrospermosins, etc.

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  • No taste or smell
  • Heat, acid stable
  • Toxic

Rosen et al, 2017

Cyanobacteria/Blue-Green Algae

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Cyanobacteria Satellite Imagery

24 National Aeronautics and Atmospheric Administration, 8/10/18

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Lake Okeechobee Waterway

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Signage

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Direct Skin Contact

Potential Exposure Pathways

Incidental Ingestion Drinking Water Inhalation of Aerosols Ingestion of Food

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Hydrogen Sulfide Testing

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www.floridahealth.gov/algaeblooms

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Health reports

Emergency Department Visits 30

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Health reports

Florida Poison Control Exposure Calls 31

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Health reports

Florida Poison Control Exposure Calls 32

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Department’s Web Site

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  • Some blue-green algae produce chemicals called cyanotoxins.
  • At high concentrations, cyanotoxins can affect the liver, nervous

system and skin.

  • Most problems occur when substantial amounts of water containing

high toxin amounts is swallowed such as when people drink untreated surface water.

  • Besides drinking the affected surface water, it is difficult to get

cyanotoxins into the body as they do not become easily airborne and do not pass through the skin readily.

  • Most people avoid a blue-green algae bloom because they tend to

be icky-looking and smelly.

Cyanobacteria/Blue-Green Algae Blooms and Public Health

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Guidance

What are some tips for avoiding cyanobacteria/blue- green algae?

Avoid swimming in or drinking water containing blue-green algae. It is best not to come in to contact with water in areas where you see foam, scum, or mats of algae on the water.

What should I do if I come in contact with cyanobacteria/blue-green algae?

If you come into contact with an algae bloom, wash with soap and

  • water. If you experience an illness, please contact your healthcare

provider.

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Department’s Web Site

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  • People in coastal areas can experience varying degrees of eye,

nose and throat irritation.

  • When a person leaves an area with a red tide, symptoms usually go

away.

  • People with severe or chronic respiratory conditions such as asthma
  • r chronic lung disease are cautioned to avoid areas with active red

tides.

  • If you experience irritation, get out and thoroughly wash off with

fresh water. Swimming near dead fish is not recommended.

  • Wearing a particle filter mask may lessen the effects, and using
  • ver-the counter antihistamines may decrease symptoms.
  • Red Tide Blooms
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Outreach/Education

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Dodge it

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Outreach Cards

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FWC Web Site

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http://myfwc.com/research/redtide/

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FWC Web Site

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http://myfwc.com/REDTIDESTATUS

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FDEP Web Site

https://floridadep.gov/AlgalBloom

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FDEP Web Site

https://floridadep.gov/AlgalBloom

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Contact Information

andy.reich@flhealth.gov (813) 307-8015 x 5961

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