soil layer. The fluid may be water, wastewater, brine (saltwater), or water mixed
with chemicals.
PROS
■ Low cost.
■ Wastes can be retrieved.
■ Requires simple technology.CONS
■ Can cause leaks.
■ Can cause earthquake issues.
■ Can cause groundwater contamination.Waste Piles
Waste piles are noncontainerized piles of solid, nonliquid hazardous waste that
are used for temporary storage or treatment. When closing a waste pile, all waste
residue and contaminated soils and equipment must be removed or
decontaminated.
PROS
■ Fairly easy to identify leaks.
■ Provides a temporary storage area to remove wastes from sensitive areas.CONS
■ Shipping materials to facilities can result in accidents.BIOACCUMULATION—BIOMAGNIFICATION
Bioaccumulation
Bioaccumulation is the increase in the concentration of a pollutant within an
organism. The rate at which a given substance bioaccumulates depends upon: