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
Date Location micrograms/L
1/28/2020 Franklin Locks Upstream not detected
1/28/2020 Davis Boat Ramp not detected
2/4/2020 Alva Boat Ramp 1.5
2/11/2020 Alva Boat Ramp not detected
2/18/2020 Franklin Locks Upstream not detected

Table Data Last Modified: Fri Feb 21, 2020 15:35:19 EST

Blue Green Algae Legend
Level Description
Greater than 8 micrograms/L Potential for health impact

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

Red Tide Data
Date Level Location
2/18/2020 not present Cayo Pelau; 2 mi S of (Charlotte Harbor)
2/18/2020 not present Boca Grande Pass
2/17/2020 not present Captiva Rocks; SW of (Pine Island Sound)
2/17/2020 not present Hemp Key; S of (Pine Island Sound)
2/17/2020 not present Cork Island; W of (Pine Island Sound)
2/17/2020 not present Redfish Pass; 1.8 mi E of (Pine Island Sound)
2/17/2020 not present Regla Island; W of (Pine Island Sound)
2/17/2020 not present Buck Key; 1.9 mi NE of (Pine Island Sound)
2/12/2020 not present South Seas Plantation Entrance
2/13/2020 not present Captiva Island; W of
2/12/2020 not present Lynn Hall Park
2/12/2020 not present Lighthouse Beach
2/12/2020 not present Tarpon Road Beach
2/12/2020 not present Lovers Key State Park
2/12/2020 not present Bonita Beach Park

Table Data Last Modified: Fri Feb 21, 2020 15:36:12 EST

Red Tide Legend
Level Cells per Liter Possible Effects
Not present/Background 0-1,000 None Anticipated.
Very low >1,000-10,000 Possible respiratory irritation; shellfish harvesting closures > 6 cells/mL.
Low >10,000-100,000 Respiratory irritation; possible fish kills and bloom chlorophyll probably detected by satellites at upper range.
Medium >100,000-1,000,000 Respiratory irritation and probably fish kills.
High >1,000,000 As above plus discoloration

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

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

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