Linear concentration-response relationships between PM and all health effects are assumed, indicating that reductions in PM have the same impact on health outcomes regardless of the absolute level of PM in a given location.
Reductions in PM effect people, in the same way, no matter the absolute level of PM.
Reduction in PM changes the impact on health outcomes.
It must be irritating.
Leonardo da Vinci's work is hardly displayed in museums.
A woman is a computer store.
There is a parade.
a man standing on concrete
A wage premium like that would result in $9 billion monopoly rents for the postal service