Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of 
@diatrix
Active 5 years, 3 months ago-
Diatrix posted an update in the group Sensor Developers 5 years, 3 months ago
Hello everyone.
I’m slowly developing a water quality sensor to monitor water pollution in underground krastic river systems. The main pollutant in these waters is fecal matter from lack of proper water treatment, and sewer systems. This pollution drains on the ocean, where it damages local reefs and it also pollutes local cenotes. Both of these…[Read more]
Hello Diego,
That is an interesting project. Is it in Yucatan Peninsula?
I think that the advice that you have been given is correct. I don’t know of any sensor that can measure fecal matters real time. The usual way is to monitor the water at fixed intervals, and take the samples to the lab where they can tell you if the bacteria is present.…[Read more]
That’s what I was thinking. I’ve been researching fluorescence spectroscopy to make a meter, but I feel like the optical filters would not be cost effective. Although I’ve seen some other comercial products that use them. (See: https://youtu.be/0uipKkfs1rs). The idea is to have a large array of sensors, to find the sources of the pollution.
Yes,…[Read more]
No such sensor yet exists. The best you can do is correlate turbidity from a sensor with measurements from water samples.
Thank you for your reply!