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Re:Estimating Community Drug Abuse by Wastewater Analysis by nefitty on Wednesday April 20, 2016 @04:44AM (#11533056)
What about in relation to population density in a given area and estimated water use per person?
Re:Estimating Community Drug Abuse by Wastewater Analysis by mrob on Wednesday April 20, 2016 @04:57AM (#11533094)
It can't distinguish low use by everybody vs. heavy use by a few. And some people may be harmed by low use, while others may be unharmed by heavy use.
Re:Estimating Community Drug Abuse by Wastewater Analysis by vintermann on Wednesday April 20, 2016 @09:36AM (#11534241)
It doesn't have to distinguish, because there's a rather predictable relationship between total use and heavy use - the usual old "pareto principle". Similarly, total use is a very good proxy for harms.