International Agency for Research on Cancer

International Air Transport Association; trade group representing
international airlines.

Incident Command

Inhibition Concentration, 25%; the effluent concentration at which growth
or reproduction are reduced by 25% from that of controls.

International Civil Aviation Organization; branch of the United Nations
responsible for international air commerce.

Interstate Commerce Commission

Inductively Coupled Plasma: Both an analytical method and an instrument
used for metal determinations.

Incident Command System

Identification Number (DOT)

A DOT term which is four-digit UN (United Nations) or NA ( North America ) number found in Column 4 of Hazardous
Materials Table. Each proper shipping name is assigned a corresponding
identification number.

Immediately Dangerous to Life and Health

International Maritime Dangerous Goods

International Maritime Dangerous Goods Codes

International Marine Organization

Refers to treatment or disposal in place, e.g., waste or soil is treated in
place without excavation or without breaking the Earth’s surface.

The process of extracting metals or other minerals from ore by allowing an
acid-containing liquid to flow through the ground that contains the
minerals. The minerals are dissolved by the acid (leached) and captured
when the liquid is collected. Leaching is also used to recover minerals
from waste rock that contains too low a concentration of the mineral to be
worth recovering by typical extraction methods.

Incineration

A reversible process in which soluble ionic contaminants (such as dissolved
metals) are adsorbed on a solid ion exchange media (naturally occurring
materials or polymeric resins containing charged functional groups that
electrostatically attract ions of opposite charge. The media can hold a
finite amount of contaminant and this amount is referred to as the media’s
capacity. When the contaminant capacity of the media is reached, the media
is removed from service and the contaminants are stripped by a regeneration
process. Regeneration restores the capacity of the media so it can be
returned to service.

Inches Per Year

Infrared Spectrometer