https://www.sciencefriday.com/segments/paraquat-parkinsons-l...
> China also banned the domestic use of Paraquat in 2017;
> Paraquat is widely used as a suicide agent in developing countries because it is widely available at low cost. Further, the toxic dose is low (10 mL or 2 teaspoons is enough to kill).
Someday (assuming humanity makes it that long) people will look back on this era the way we look back on the Romans and their lead pipes.