Lake Erie Microcystin Sampling Data

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Click on a sampling location on the map to view its data below. Data points labeled as "Non-Detectable" indicate a Microcystin sample that measured less than 0.1 μg/L.

We also have included data collected on Chlorophyll a concentrations, water temperature sampled from a CTD (conductivity, temperature, and depth) profiler, and secchi depth.

For 2018, samples were taken at the surface (approximately 0.75 m deep) and bottom (1 m off the bottom of the lake).

Lastly, we present data from a September deployment of the Environmental Sample Processor (ESP) below the WEXX sampling location plots. The ESP's location is represented on the map below as a green dot. Data are derived from the surface and bottom of the water column where the ESP is located. Surface and bottom samples are collected by pumping water through a two-way valve. The ESP is mounted on the bottom with tubing routed to the communications buoy for surface sample collection.

WHO Recommended Guidelines (for reference)

Particulate and Dissolved Microcystins have different vertical axis ranges

WE2 WE4 WE6 WE8 WE9 WE12 WE13 WE16 ESP
Map of sampling sites in western Lake Erie

Click on the map points above or buttons and location labels below to view data.

Station Name (Water Column Depth)

WE2 (~6 m)

Surface (0.75 m deep) Bottom (1 m off bottom of lake)

WE4 (~9 m)

Surface (0.75 m deep)

WE6 (~2.75 m)

Surface (0.75 m deep)

WE8 (~5 m)

Surface (0.75 m deep) Bottom (1 m off bottom of lake)

WE9 (~3 m)

Surface (0.75 m deep)

WE12 (~7 m)

Surface (0.75 m deep) Bottom (1 m off bottom of lake)

WE13 (~9.5 m)

Surface (0.75 m deep) Bottom (1 m off bottom of lake)

WE16 (~6.5 m)

Surface (0.75 m deep)


Data from the Lake Erie Environmental Sample Processor

Note: Observations are assigned a value of 0.1 ug/l when measurements are less than the lowest limit of detection or between that and the lowest level of quantification.

Click here for more information on the Environmental Sample Processor.
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