I think that's kind of obvious, as most tailpipe emissions are gaseous, not particulates. What really matters, instead of blindly counting particles, is health outcomes. Nox fumes are strongly associated with negative health outcomes, even if it isn't strongly associated with a particulate count.[1]
I think that's kind of obvious, as most tailpipe emissions are gaseous, not particulates. What really matters, instead of blindly counting particles, is health outcomes. Nox fumes are strongly associated with negative health outcomes, even if it isn't strongly associated with a particulate count.[1]
[1]https://www.mdpi.com/1660-4601/17/3/754