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WF-325UPL

False Negatives for Water Quality-Associated Beach Closures

Toronto’s use of AI predictive modeling (AIPM) which had replaced existing methodology as the only determiner of beach water quality raised concerns about its accuracy, after allegedly conflicting results were found by a local water advocacy group using traditional means.

Date it happened
2022-06-03
Organisation involved
Toronto city government
Product, system or model
Waters that tested high for E. coli using traditional means were marked safe by the new AIPM system dozens of times. "Cann Forecast describes its beach water monitoring system as a high-tech "artifici
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