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There are 272 entries started with 'i'
I I&C I/I
ic IE If
IL Ip Ir
IT iω IACMAG
IAF IAH IAQ
IARC IBWA IBWM
ICBN ICCP ICE
ICE CAP ICE COVER ICE CRYSTALS
ICE FOG ICE LENSES ICE MECHANICS
ICE PELLET ICE PRESSURE ICE SHEET
ICE STORM ICEBERG ICE-CONTACT STRATIFIED DRIFT
ICRP ICRU ICWM
IDA IDEAL ELASTOPLASTIC MATERIAL IDEAL GAS LAW
IDENTIFICATION CODE IDLH IEB
IEC IECA IEEE
IEP IES IFAI
IGCC IGCI IGNEOUS ROCK
IGNITABILITY IGNITABLE WASTE IGNITION POINT
IGS IGU IIA
IIMS IJC ILLITE
ILLUVIAL ILLUVIATION ILMENITE
IMBIBITION IMHOFF CONE IMHOFF TANK
IMMEDIATE SETTLEMEN (Sd) IMMEDIATELY DANGEROUS TO LIFE AND HEALTH (IDLH) IMMISCIBLE
IMMUNOASSAY IMPACT FEE IMPELLER
IMPERIAL GALLON IMPERMEABILITY IMPERMEABLE
IMPERVIOUS SOIL LAYER IMPINGEMENT IMPOUNDMENT
IMPRESSED VOLTAGE CATHODIC PROTECTION IMPURITY IMS
INACTIVE FACILITY (Waste Control) INACTIVE PORTION (Waste Control) INCINERATION
INCINERATOR INCLINED-PLATE SEPARATORS INCLINOMETER
INCLUSION INCOMPATIBLE WASTE INCUBATE
INDEX INDICATOR ORGANISM INDIGENOUS
INDIRECT DISCHARGER INDIRECT-RECOIL FRACTION INDOOR AIR POLLUTION
INDUCED RECHARGE INDUCED-AIR FLOTATION (IAF) INDUCED-DRAFT COOLING TOWER
INDURATED SOIL INDURATION (Geology) INDUSTRIAL ECOLOGY
INDUSTRIAL SEWAGE INDUSTRIAL SOLID WASTE INDUSTRIAL USE OF WATER
INDUSTRIAL WASTE INDUSTRIAL WASTEWATER INDUSTRIAL WATER POLLUTION
INERT GASES INFECTIOUS AGENT INFECTIOUS WASTE
INFILTRATE INFILTRATION INFILTRATION CAPACITY
INFILTRATION COEFFICIENT INFILTRATION GALLERY INFILTRATION INDEX
INFILTRATION RATE INFILTRATION VOLUME INFILTRATION WATER
INFILTROMETER INFLAMMABLE INFLOW
INFLOW/INFILTRATION (I/I) INFLUENCE VALUE INFLUENT
INFLUENT STREAM INFRARED RADIATION INFRASTRUCTURE
INHALABLE DIAMETER INHALATION LC50 (LC50) INHIBITOR
INITIAL COMPRESSION INITIAL CONSOLIDATION INJECTION
INJECTION WELL INJECTION, CHEMICAL INLET WELL
INNER LINER INNER-SPHERE COMPLEXATION INOCULATER
INORGANIC CHEMISTRY INORGANIC COMPOUNDS INORGANIC SILT
INROTATIONAL WAVE INSECTICIDES INSHORE
INSHORE CURRENT IN-SITU IN-SITU BIODEGRADATION
IN-SITU MEASUREMENT IN-SITU SITE REMEDIATION (Waste Control) IN-SITU TESTING
IN-SITU TREATMENT INSOLATION INSOLUBLE
INTACT-ROCK CLASSIFICATION INTAKE INTEGRAL WATERPROOFING
INTEGRATED RISK INFORMATION SYSTEM (IRIS) INTEGRITY INTENSITY
INTERCEPTOR SEWER INTERCONDENSER INTERFACIAL TENSION
INTERFLUVE INTERGRANULAR CORROSION INTERGRANULAR PRESSURE
INTERIM AUTHORIZATION (Waste Control) INTERIM STATUS (Waste Control) INTERLOCK (Piling)
INTERMEDIATE INTERMEDIATE PRINCIPAL STRESS INTERMITTENT STREAM
INTERMODAL SURFACE TRANSPORTATION EFFICIENT ACT OF 1991 (ISTEA) INTERNAL DRAINAGE INTERNAL FRICTION
INTERNAL WAVES INTERNATIONAL EROSION CONTROL ASSOCIATION (IECA) INTERNATIONAL GEOSYNTHETIC SOCIETY (IGS)
INTERNATIONAL GEOTEXTILE SOCIETY (IGS) INTERNATIONAL SOCIETY OF ENVIRONMENTAL GEOTECHNOLOGY (ISEG) INTERNATIONAL SYSTEM
INTERSTICE INTERSTITIAL WATER INTRAZONAL SOILS
INTRINSIC PERMEABILITY INTRUSION INTRUSIVE ROCK
INVERSE SOLUBILITY INVERSION(S) INVERSIONS, FRONTAL
INVERSIONS, RADIATION INVERSIONS, SUBSIDENCE INVERSIONS, TEMPERATURE
INVERT INVERTED FILTERS IN-VESSEL COMPOSITING
IN-VITRO IN-VIVO COUNTING IOC
IODINE ION ION BOND
ION EXCHANGE REACTION ION EXCHANGE (IX) ION EXCHANGE CAPACITY (IEC)
ION MOBILITY SPECTROMETRY (IMS) IONIC BOND IONIC POTENTIAL
IONIC STRENGTH IONIZATION IONIZATION CHAMBER
IONIZING RADIATION IONOSPHERE IOWA SOILS
IP IPCC IPCS
IPM IPP ips (Unit)
IRIS IRLG IRM
IRMC IRON IRON BACTERIA
IRON ORES IRON PYRITE IRONITE METHOD
IRPTC IRR IRRIGATION
ISE ISEG ISLAND ARC
ISO ISO 14000 ISO 9000
ISOBAR ISOCHRONE ISOELECTRIC POINT (IEP)
ISOGRAD ISOMER ISOMETRIC
ISOMORPHOUS SUBSTITUTION ISOPE ISOPLETH
ISOSEISMAL ISOSEISMIC LINES ISOSTASY
ISOTHERM ISOTOPES ISOTOPIC DATE
ISOTROPIC MASS ISOTROPIC SOIL ISRM
ISS ISSMFE ISSMGE
ISTEA ITC ITRC
ITRD ITS IUP
IUR IWC IWEM
IWS IX




ENVIRONMENTAL GEOTECHNOLOGY DICTIONARY
Edited By
Hsai-Yang Fang, Ph.D
Professor Emeritus
Lehigh University. Bethlehem, PA
Distinguished Fellow
Global Institute for Energy & Environmental Systems
The University of North Carolina at Charlotte, Charlotte, NC

Copyright Reserved 2006

Environmental geotechnology is a relatively new and interdisciplinary subject, which covers soil, water and rock and their interaction with various environmental cycles including the atmosphere, biosphere, hydrosphere, lithosphere, as well as geomicrobiosphere. To tackle this complex subject, it is necessary to have knowledge from other disciplinary fields including agricultural science, biology, environmental science, geology, microbiology, mineralogy, and physicochemistry. Therefore, a uniform glossary of terms, definitions, nomenclature, abbreviation, acronym, symbols and units is needed for general discussions, reports and documents to minimize confusion and to improve the effectiveness for the environmental aspects of geotechnical problems. Some important information is collected, compiled and edited, and in spite of careful preparation of this dictionary, there cannot be avoided some missing or misinterpreted terms, typing errors, etc. The editor hopes, however, that with the aid of suggestions and criticism, there can be improvement for a later edition.
Thanks to many government agencies, professional societies and private organizations including American Society of Civil Engineers (ASCE), American Society for Testing and Materials (ASTM), Transportation Research Board (TRB), International Society of Environmental Geotechnology (ISEG), U.S. Environmental Protection Agency (EPA), U.S. Department of Energy (DOE) for providing useful documents for preparation of the dictionary. Also thanks to Prof. Charles Ochola, Villanova University, Prof. Tae-Hyung Kim, Korea Maritime University, Ms. Eleanor S. Nothelfer of Fritz Engineering Laboratory, Lehigh University and Mr. Gustavo Borel Menezes of Global Institute for Energy and Environmental Systems (GIEES), University of North Carolina at Charlotte for their assistance during various phases of preparation of the manuscript.
Acknowledgment is made to Review Committee Members for their time and willingness to review the manuscripts.

Prof. Ronald C. Chaney, Humboldt State University, Arcata, CA
Prof. John L. Daniels, The University of North Carolina at Charlotte, NC
Prof. Jeffrey C. Evans, Bucknell University, Lewisburg, PA
Prof. T. Cassia De Brito Galvao, Universidade Federal de Minas Gerais, BRAZIL
Prof. Hilary I. Inyang, The University of North Carolina at Charlotte, NC
Dr. Abidin Kaya, URS Corporation, Honolulu, HI
Prof. Jai-Young Lee, The University of Seoul, KOREA
Prof. Irene M.C. Lo, Hong Kong University of Science & Technology, Hong Kong
Prof. Horace K. Moo-Young Jr., Villanova University, PA
Dr. Jouko Saarela, Finnish Environmental Institute, FINLAND
Prof. Robert W. Sarsby, The University of Wolverhampton, U.K.
Prof. Leonardo Zeevaert, Universidad Nacional Automoma de Mexico, MEXICO
Prof. Thomas F. Zimmie, Rensselaer Polytechnic Institute, NY

Hsai-Yang Fang
February 15, 2006

Web Edition by:
Gustavo Borel Menezes, GIEES, UNC Charlotte
Simon Chung, GIEES, UNC Charlotte

Developed by: Gustavo Borel Menezes