Turbidity and TSS
http://duluthstreams.org/understanding/param_turbidity.html

Lake Superior Duluth Streams.org, City of Duluth, Minnesota; University of Minnesota, Duluth; Natural Resources Research Institute; Sea Grant Minnesota; University of Minnesota Extension Service


This image-rich Streams.org website describes turbidity and total suspended solids (TSS). It includes overviews about what they are, why they are measured, how they are measured, and why they vary. The site also features links to sensor and other water quality parameters.

This resource is referenced here:
Subject: Biology:Ecology:Metabolism, Biology, :Microbiology, Ecology:Habitats:Water Column, Geoscience:Hydrology:Surface Water:Water Quality/Chemistry
Resource Type: Audio/Visual:Images/Illustrations, Scientific Resources:Overview/Reference Work
Grade Level: Informal, General Public, High School (9-12), College Lower (13-14), Middle (6-8)
Topics: Biosphere:Ecology:Habitats:Freshwater, Biosphere:Ecology, Microbiology, Hydrosphere/Cryosphere:Surface Water:Water Quality/Chemistry, Biosphere:Ecology:Habitats:Water ColumnKeywords: nutrient load, sediment load, suspended sediment, Secchi