The models are used to estimate physical-chemical properties and to predict the concentrations and distributions of chemicals released to air, water, and land.
(The models; are used; to estimate physical-chemical properties and to predict the concentrations and distributions of chemicals) (The models; to estimate; physical-chemical properties) (The models; to to predict; the concentrations and distributions of chemicals) (chemicals; released; to air, water, and land)
The models The models The models chemicals
are used to estimate to to predict released
to estimate physical-chemical properties and to predict the concentrations and distributions of chemicals
physical-chemical properties
the concentrations and distributions of chemicals
to air, water, and land