In their simulation, the highest exposure was about 12 nanograms per Kg per day in toddlers. I wasn't able to get a sense of the significance of this exposure - I skimmed, maybe it's there. Is this a lot or a little? There's always going to be some number that comes out of the simulation.

For context, my neighbors smoke pot and I can smell it in my house and hate it. I welcome any research that makes it socially unacceptable to smoke near other non-participants.