Anchor: The change in PM concentrations due to the Clear Skies Act was modeled using the Regional Modeling System for Aerosols and Deposition (REMSAD).
Entailed: REMSAD is a tool to model PM concentration changes.
Contradiction: PM cannot be measure in concentration, according to REMSAD.
Contradiction: Hanson's fingers trembled violently, and he could not do any work.
Contradiction: It is the estimated value health per incidence.
Contradiction: A woman is pacing.
Contradiction: Murcia and the other three cities can be explored within a few days.