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- Harmful Algal Blooms (HAB)
Harmful Algal Blooms (HAB)
- What is a HAB?
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It's an overgrowth of microscopic algae that derives energy from the sun. This can occur in both fresh and salt bodies of water.
- What causes an HAB?
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There can be severals causes: stagnant water, pollution, warm water or climate change.
- Is a HAB toxic?
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Yes, they can be. Humans and pets should avoid contact with any water that appears slimy, scummy or smells foul.
- What does a HAB look like?
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On the water surface, it can look like froth, foam, paint or scum. It can be several different colors to include: bluish-green, red, brown, yellow or even pink.
- What are the routes of exposure?
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Through:
- Skin Contact
- Inhalation
- Ingestion
- What kind of symptoms can humans experience if exposed?
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- Ear, eye, nose, skin, throat irritation and headache
- Paralysis, respiratory illness and seizures
- Abdominal pain, diarrhead, liver and kidney damage. Vomiting.
- What kind of symptoms can pets experience if exposed?
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- Drooling, diarrhea, low engery, not eating, stumbling, tremors. Vomiting.
- What do I do if I've been exposed to a HAB?
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- Shower immeidately
- Contact your Primary Care Physician (PCP) if symptoms occur
- Contact the National Poison Control Center at: 1-800-222-1222
- What do I do if my pet has been exposed to a HAB?
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- If you think your pet may have been exposed to an algal bloom, rinse their fur with fresh water and consult your veterinarian immediately.
- How do I report a suspect HAB?
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- Contact the Shrewsbury Health Department at: 508-841-8384
Related websites:
City of Worcester:
- Lakes & Ponds Program: https://www.worcesterma.gov/sustainability-resilience/recreational-waters
Environmental Toxicology Program:
- About the Program: https://www.mass.gov/orgs/environmental-toxicology-program
- Algae-Blooms: https://www.mass.gov/algae-blooms
Center for Disease Control (CDC):
- General information: https://www.cdc.gov/habs/general.html
- Illness and Symptoms: https://www.cdc.gov/habs/illness-symptoms-freshwater.html
- Avoid Blooms: https://www.cdc.gov/habs/be-aware-habs.html
Contact Us
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Emma Stefanski, Regional Public Health Coordinator
Central MA Regional Public Health Alliance (CMRPHA)
EmailKerry Stockwell, Principal Department Assistant
EmailHealth Department
100 Maple Avenue, 1st Floor
Shrewsbury, MA 01545
Telephone: 508-841-8384Hours of operation:
Mon, Wed, Thurs - 8AM - 4:30PM
Tues - 8AM - 6:30PM
Fri - 8AM - NOON
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