Healthy Waterways
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Pumicestone Passage
Chart of the Variables
Legend
Overall Overall compliance of the bay area, including ecosystem health indicators and BHR.
Chl-a Chlorophyll a: a pigment found in photosynthetic organisms
TN Total Nitrogen: dissolved and particulate form of Nitrogen
Secchi Secchi Depth: Measure of water clarity
Del-N Delta-N: measure of the extent of sewage plumes
Lyngbya Lyngbya majuscula: a toxic filamentous cyanobacterium found in marine and estuarine environments
BHR Biological Health Rating
Increase Increase in compliance from previous year
Decrease Decrease in compliance from previous year

A description of the indicators and methods used can be downloaded as a PDF file.