| Event name: | US-24-021 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
Water Discoloration | |
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Event directly affected: |
Humans | |
| Toxicity detected: | No | |
| Associated syndrome: | OTHER | |
| Unexplained toxicity: | ||
| Species implicated in toxin transmission (transvector): | The reporting party was wading near discolored and foul smelling water for about 20 minutes and had subsequent severe itching which persisted for 20 minutes. There was a dinoflagellate bloom with visibly discolored water near the area 10/5/24(exposuredate | |
| Report the outcome of a monitoring programme: | No | |
| Event occurred before in this location: | ||
| Individuals to contact: | MURPHY, Shannon | |
| Location: | Latitude: , Longitude: | |
| General location information: |
California- Sonoma County, HAB Area code(s): US-21 |
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| Additional location information: | late September through mid-December with some fluctuations | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | ||
| Additional date-related information: | ||
| Causative organism known: | No | |
| Causative Species/Genus: |
Ceratium tripos
(184,541 cells/L)
reported as ceratium/tripos |
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | Higher cell counts noted beginning with 9/30/24 sample; bloom continued with some fluctuations through 12/17/24 sample. Prorocentrum_spp also present although generally lower cells/L . | |
| Event-related bibliography: | ||
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| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
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| Bloom location in the water column: | ||||||||||||||||||||||||||
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| Kit used: | Type of kit used: | ||||||
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| Management decision: | The California Interagency HAB-related Illness Workgroup tracks HAB-related illnesses and reported this event to the CDC's One Health Harmful Algal Bloom System (OHHABS) | ||||||
| Additional harmful effect information: | |||||||
