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You're correct! My goal for this project was just to get young people involved in understanding things that impact the quality of community space. While conductivity doesn't directly measure "pollution" it does give an idea of the "purity" of the water which can be extended to a rudimentary idea of the quality of that water. The average ranges provided also serve to help put those numbers in context.
Sounds fantastic! I will certainly look into updating this with some links to those materials in the near future. Thanks for your feedback!
Arduino Water Pollution Mon...View Instructable »