Do wonder whether they are using a threshold model instead of simple linear model for dose-response for particulates nowadays. Makes a huge difference when det

Do wonder whether they are using a threshold model instead of simple linear model for dose-response for particulates nowadays. Makes a huge difference when determining health effects at low doses, and back in the day it wasn’t clear which model was the clear winner. Assume a threshold model and most of your health effects disappear. Probably buried in this light-hearted report (2000 pages). https://cfpub.epa.gov/ncea/isa/recordisplay.cfm?deid=347534 https://cfpub.epa.gov/ncea/isa/recordisplay.cfm?deid=347534