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File: 970107_sep96_decls52_0003.txt
Subject: KUWAIT ASSESSMENT OF POTENTIAL GROUNDWATER CONTAMINATION
Unit: OTSG
Parent Organization: HSC
Box ID: BX003205
Folder Title: EXPOSURE CALCULATIONS
Document Number: 1
Folder Seq #: 19
J.
OF CHI:Ml(',ALS TN ENVIP.CINPII71,4'Y'AL IIEI)TA (@'C)VE E'Y) I;Y I'HX@::
CHEFIJ'.CAL. N@%MF- LONUC-'14'IRAI'ION
5.000 (ug.11)
@3-5 CARBON I'ET
/1-55-6 1,1,1-lRICHLO@THAt4E zoo.606 tug/1)
12,@-18-4 PERCHLORE)ETHI'LE 5.(>OO ("g/1)
100-42-5 STYRENE I(>O.000 (itg/1)
ANTHRACEt4C 300.000 (ug/1)
107-02-S ACROLE114 O.Z30 (ug/1)
5O.-32-8 BTNZO(A)PYFENE 0.200 @ug/1)
Exposure Is defined as the C014TACT of an organism (humans in the case-of health
risk assessment) With a chemical or physical'agent. The magnitude of exposure
is determined by measuring or estimating the amount of an agent available for
absorption at the lungs, gut, or skin, not the amount-absorbed.
@@Two different methods are used to calculate exposure., Average Daily Exposure
@ (ADE) is an average exposure computed for the period over which exposure
,occurs, and@is used to calculate risks for non-cancer toxic effects. Lifetime
Average Daily Exposure (LADE), used to calculate carcinogenic risks, takes into
Account the fact that while carcinogenic hazard values are deteemined.with an
assumption Of lifetime exposure, actual expos@tre,may be over a Shorter 'period.
t Concentration k Contact Rate) / Body weight
LADE ADE x (Exposure Period in Years / Lifetime)
Contact Rate is the amount of the contaminated medium (waterg airm food) with
h a person comes into contact (generally a daily average) foe the period of
sure (e.g. liters per day of water ingeotod, kilograms per day of food
invested, cubic motors per day of air inhaled). Both ADE and LADE are
generally expressed in units of milligrams of the contaminant Availabli for
absorption,, per kilogram of body weight, per diy.
t:XP' SUMMARY - AVERA(3E DAILY EXPOSURE (ADE) IN mg/kg/d
MMIUM/SCEt4ARIO CONCENTRATION ORAL INHALATION DERMAL
CHEMRCAL(S) units:seo note below ADE ADE ADE
@,,@0'rattndwator - Ingestion of Drinking Water
7664-41-7 IA 1.7*+OOI 7.30-004
7440-36-0 ANIIMMY 3. 0 1.3*-004
71"43-2 BENZENE 5.00+000 2.1*-004
1319-77-3 CRESOL 2.2e+001 9.4@4
110-54-3 H-HEXAME 1.80@2 7."-003
77S3-0,6-4 HYDROGEN $"II>1.4e+001 6.0&-004
?1-20-3 NAPHTHA 5.2e+001 2.2*-003
4.3463-39-3 NICXEL C^It@YLI.2e-(>Ol 5.10-006
tOS-88-3 TOLUENE 2.0e+603 8.6*-002
10,',.'-38-3 M-XYLENE 2.0e+001 8.6*-004
95-47-6 O-XYLEME 2.0e+001 8.6e-004
106-42-3 P-XYLEME Z.Oe+001 8.4e-004
56-23-5 CARBON TET 5.oe-ooo 2.lp-004
.11-55-6 II,I-TRICHLOR02.0@002 8.6e-(>03
-7-18-4 PERCHLOROETHYLE5.04+000 2.10-004
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Document 7 f:/Week-36/BX003205/EXPOSURE CALCULATIONS/kuwait assessment of potential groundwater conta:01029715474153
Control Fields 17
File Room = sep96_declassified
File Cabinet = Week-36
Box ID = BX003205
Unit = OTSG
Parent Organization = HSC
Folder Title = EXPOSURE CALCULATIONS
Folder Seq # = 19
Subject = KUWAIT ASSESSMENT OF POTENTIAL GROUNDWATER CONTA
Document Seq # = 1
Document Date =
Scan Date =
Queued for Declassification = 01-JAN-1980
Short Term Referral = 01-JAN-1980
Long Term Referral = 01-JAN-1980
Permanent Referral = 01-JAN-1980
Non-Health Related Document = 01-JAN-1980
Declassified = 02-JAN-1997