The experimental estimates are based on "nicotine metabolite concentrations" detected in wastewater samples, combined with data showing a collapse in spending on legal cigarettes and vapes.

Australian Bureau of Statistics estimates nicotine consumption rose 40%, with illicit sources accounting for 80% of all tobacco

The experimental estimates are based on "nicotine metabolite concentrations" detected in wastewater samples, combined with data showing a collapse in spending on legal cigarettes…