CHICAGO (AP) — Rowers, kayakers and other users of the Chicago River are getting a real-time look at one measure of water quality in the system that weaves through downtown and several neighborhoods.
Chicago nonprofit Current in 2019 installed three sensors in the river’s three main branches to continuously estimate the amount of bacteria from human and other warm-blooded animals’ waste.
Great Lakes Now
https://www.greatlakesnow.org/2021/09/ap-sensors-chicago-river-quality/