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Algae Test Results

The tables below contain blue-green algae and red tide results from water samples taken in Lee County by the Florida Department of Environmental Protection (DEP) and the Florida Fish and Wildlife Conservation Commission (FWC). Information on this page is updated periodically throughout the week. More current results may be available by visiting the DEP Florida Algal Bloom Site Visits map and the FWC Red Tide Current Status map.

Blue Green Algae Data
Datemicrograms/LLocation
7/22/2019not detectedS79
7/23/2019not detectedMidpoint Bridge Park
7/23/2019not detectedLittle Canal
7/25/2019not detectedOld Bridge Road
7/29/2019not detectedS79
8/5/2019not detectedS79
8/12/2019not detectedS79

Table Data Last Modified: Fri Aug 16, 2019 15:10:11 EDT

Blue Green Algae Legend
LevelDescription
Greater than 8 micrograms/LPotential for health impact

Table Data Last Modified: Fri Jun 07, 2019 15:57:24 EDT

Red Tide Data
DateLevelLocation
8/12/2019not present Cayo Pelau; 2 mi S of (Charlotte Harbor)
8/12/2019not present Boca Grande Pass
8/12/2019not present Little Bokeelia Island; N of (Charlotte Harbor)
8/12/2019not present Mondongo Island; W of (Pine Island Sound)
8/13/2019not present Ben Coleman Keys (Matlacha Pass)
8/13/2019not present Porpoise Point Island; SW of (Matlacha Pass)
8/12/2019not present Captiva Pass
8/12/2019not present Captiva Rocks; SW of (Pine Island Sound)
8/12/2019not present Hemp Key; S of (Pine Island Sound)
8/13/2019not present Deer Stop Keys; SW of (Matlacha Pass)
8/12/2019not present Redfish Pass; 1.8 mi E of (Pine Island Sound)
8/12/2019not present Redfish Pass (Pine Island Sound)
8/12/2019not present Regla Island; W of (Pine Island Sound)
8/12/2019not present Buck Key; 1.9 mi NE of (Pine Island Sound)
8/14/2019not present South Seas Plantation Entrance
8/12/2019not present York Island; W of (Pine Island Sound)
8/12/2019not present Buck Key; S of (Blind Pass)
8/14/2019not present Lynn Hall Park
8/14/2019not present Lighthouse Beach
8/14/2019not present Tarpon Road Beach
8/14/2019not present Lovers Key State Park
8/14/2019not present Bonita Beach Park

Table Data Last Modified: Fri Aug 16, 2019 15:11:07 EDT

Red Tide Legend
LevelCells per LiterPossible Effects
Not present/Background0-1,000None Anticipated.
Very low>1,000-10,000Possible respiratory irritation; shellfish harvesting closures > 6 cells/mL.
Low>10,000-100,000Respiratory irritation; possible fish kills and bloom chlorophyll probably detected by satellites at upper range.
Medium>100,000-1,000,000Respiratory irritation and probably fish kills.
High>1,000,000As above plus discoloration

Table Data Last Modified: Tue May 14, 2019 07:41:11 EDT

Mobile Version of this Page

Please visit our red tide and blue-green algae pages for more information.

Sources:

DEP Florida Algal Bloom Site Visits

EPA Recommendations for Cyanobacteria and Cyanotoxin

FWC Red Tide Current Status Update

FWC Red Tide Current Status Map