Sewage, or rather, highly accurate analysis of sewage... can yield all sorts of data. Theoretically, you could probably determine the number of contributors with genetic analysis. Consumption levels of drugs and such.
It might even have applications at the personal level. Auto Diagnosing toilets.
Sewage, or rather, highly accurate analysis of sewage... can yield all sorts of data. Theoretically, you could probably determine the number of contributors with genetic analysis. Consumption levels of drugs and such.
It might even have applications at the personal level. Auto Diagnosing toilets.