Take the following as truth: Although the consistent advice from EPA's Science Advisory Board has been to model premature mortality associated with PM exposure as a non-threshold effect, that is, with harmful effects to exposed populations regardless of the absolute level of ambient PM concentrations, some analysts have hypothesized the presence of a threshold relationship.
Then the following statement: "Premature mortality is directly linked to the nurturing environment." is true, false, or inconclusive?
Answer: Inconclusive