This example is from the case_01 test case.

"mf","Version 2.1"

"Human Exposure & Risk:Exposure Pathways:exp","MEPAS 5.0 Exposure Pathways Module","exp.exe","MepExp.bat","exp.ico" 

MODULE VERSION

  5.0 Compiled on 6/1/2006

MODULE DESCRIPTION

The MEPAS Exposure Pathways Module can be used to

calculate pollutant concentrations in exposure

media resulting from contamination of air,

groundwater, surface water, and soil. The module

includes consideration of domestic water use,

farm product consumption, aquatic food consumption,

surface water recreational activities, soil contact

exposure, and air exposures.  Both chemical and

radioactive pollutants may be evaluated.  Indoor

air inhalation of volatile compounds may be evaluated

using either the MEPAS shower model or the

EPA/Andelman indoor air model.  Transfer of activity

through food chains is modeled using concentration

ratios, bioaccumulation factors and transfer factors.

Radioactive chain decay with branching is included

in evaluation of changing media concentrations with

time.  Buildup and leaching of constituents from

surface soil is accounted for as a function of time.

For waterborne contamination, exposure media

concentrations are evaluated for one location.

For atmospheric contamination, media concentrations

are evaluated for each location defined in the ato file.

Limitations:

  The atmospheric transport output file (ato) can have

  data for a maximum of 10 time periods, 20 distances,

  and 36 directions.  A maximum of 100 time points can

  be defined for each data set in the water concentration

  file (wcf).

MODULE REFERENCES

  Strenge, D.L., and P.J. Chamberlain.  1995.

  Multimedia Environmental Pollutant Assessment

  System (MEPAS): Exposure Pathway and Human

  Health Impact Assessment Models.

  PNL-10523.  Pacific Northwest Laboratory, Richland, WA.

Other related sites:

  http://mepas.pnl.gov/mepas

  http://mepas.pnl.gov/FramesV1/exposure.html

VALID CONNECTIONS

Valid Input Reads

     1 to 1 con required as input

     0 to 1 scf Soil required as input

     0 to 1 wcf Aquifer required as input

     0 to 1 wcf Surface Water required as input

     0 to 1 ato Air required as input

     0 to 1 ato Polar Air required as input

Valid Output Writes

     epf Exposure Pathways

SYSTEM REQUIREMENTS

Operating System:     WIN 95 / NT

Processor:            Pentium

RAM Memory:           Minimum 16MB

Disk Space:           Minimum 4MB free disk space

 

POINT OF CONTACT

Company Name:         Pacific Northwest National Laboratory

Contact Name:         Dennis Strenge

Mailing Address:      PO Box 999

City:                 Richland

State:                WA

Zip Code:             99352

Country:              USA

Telephone Number:

Fax Number:

Email Address:        dennis.strenge@pnl.gov

URL Address:          http://mepas.pnl.gov/mepas/mexp/requirements.html

"

12,"Read"

5,"wcf","Aquifer",1,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",0,1,"ato","Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",1,1,"con","",1,1,"scf","Soil",0,1,"ato","Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",1,1,"ato","Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",0,1,"ato","Air",1,1

5,"wcf","Aquifer",1,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",0,1,"ato","Polar Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",1,1,"con","",1,1,"scf","Soil",0,1,"ato","Polar Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",1,1,"ato","Polar Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",0,1,"ato","Polar Air",1,1

5,"wcf","Aquifer",1,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",0,1,"ato","Cartesian Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",1,1,"con","",1,1,"scf","Soil",0,1,"ato","Cartesian Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",1,1,"ato","Cartesian Air",0,1

5,"wcf","Aquifer",0,1,"wcf","Surface Water",0,1,"con","",1,1,"scf","Soil",0,1,"ato","Cartesian Air",1,1

2,"Write"

"epf","Exposure Pathways"

"msg","Messages"

78,"Variables"

"CVTFormat","Not Stochastic",,,,"Number format to use",0,STRING

"KNPATH","Not Stochastic","","Min",0,"Max",7,"Pathway selection flag",0,INTEGER

"KGDR","Not Stochastic","","Min",0,"Max",3,"Domestic Usage",0,INTEGER

"KGIR","Not Stochastic","","Min",-1,"Max",2,"Irrigation Usage",0,INTEGER

"KSDR","Not Stochastic","","Min",0,"Max",3,"Domestic Usage",0,INTEGER

"KSIR","Not Stochastic","","Min",-1,"Max",2,"Irrigation Usage",0,INTEGER

"KSAQ","Not Stochastic","","Min",0,"Max",3,"Aquatic Food Usage",0,INTEGER

"KSR","Not Stochastic","","Min",0,"Max",4,"Recreational Usage",0,INTEGER

"KAIN","Not Stochastic","","Min",0,"Max",1,"Regional Exposure",0,INTEGER

"KAAG","Not Stochastic","","Min",0,"Max",1,"Agricultral Exposure",0,INTEGER

"GWFEED","Not Stochastic","","","","Ground water used for feed irrigation",0,LOGICAL

"GWDRINK","Not Stochastic","","","","Ground water used for drinking water",0,LOGICAL

"SWFEED","Not Stochastic","","","","Surface water used for feed irrigation",0,LOGICAL

"SWDRINK","Not Stochastic","","","","Surface water used for drinking water",0,LOGICAL

"SOILMOD","Not Stochastic","","","","Soil concentration file model usage",0,LOGICAL

"NYEARS","Not Stochastic","yr","","","Time step between computations",0,FLOAT

"KEXPTH","Not Stochastic",,"Min",0,"Max",1,"Flag",2,INTEGER

"Variable","Pathways","Index1","","","","",""

"Variable","Media","Index2","","","","",""

"LTRTL","Not Stochastic","","","","Check if water is treated water",1,INTEGER

"Variable","Media","Index1","","","","",""

"LEACHOPTION","Not Stochastic","","Min",0,"Max",1,"Leachrate selection option",0,INTEGER

"DGWED","Continuous","yr","Min",1,"Max",100,"Exposure duration",0,FLOAT

"DSWED","Continuous","yr","Min",1,"Max",100,"Exposure duration",0,FLOAT

"ATED","Continuous","yr","Min",1,"Max",100,"Exposure duration",0,FLOAT

"SMED","Continuous","yr","Min",1,"Max",100,"Exposure duration",0,FLOAT

"TWTR","Continuous","day","Min",0,"Max",100,"Water distribution time",1,FLOAT

"Variable","Media","Index1","","","","",""

"FIRR","Continuous","","Min",0,"Max",1,"Fraction of the year that groundwater is used for irrigation",1,FLOAT

"Variable","Media","Index1","","","","",""

"CIRR","Continuous","L/m^2/mon","Min",0,"Max",999.9,"Irrigation rate",1,FLOAT

"Variable","Media","Index1","","","","",""

"TISSUE","Continuous","","Min",0.0001,"Max",10000,"Finned fish fillet correction factor",0,FLOAT

"TFSH","Continuous","day","Min",0,"Max",999.9,"Finfish ingestion harvest delay time",0,FLOAT

"TINV","Continuous","day","Min",0,"Max",999.9,"Shell fish ingestion harvest delay time",0,FLOAT

"TSS","Continuous","m","Min",0.001,"Max",5,"Thickness of shoreline sediments",0,FLOAT

"RHOSS","Continuous","g/cm^3","Min",1,"Max",4,"Density of shoreline sediments",0,FLOAT

"TAS","Continuous","m","Min",0.001,"Max",5,"Thickness of soil recieving deposition",0,FLOAT

"RHOAS","Continuous","g/cm^3","Min",1,"Max",4,"Density of soil recieving deposition",0,FLOAT

"TEXPOS","Continuous","yr","Min",0,"Max",1000000,"Time to start exposure computation",0,FLOAT

"MAXTIM","Not Stochastic","yr","Min",0,"","Maximum time for reporting",0,FLOAT

"NTIMES","Not Stochastic","","Min",0,"","Number of time points for evaluation",0,FLOAT

"NUMCON","Not Stochastic","","","","Constiuent count",0,INTEGER

"NDS","Not Stochastic","","","","Number of daughter products",1,INTEGER,con.FSCASID

"Variable","FSCNAME","Site","Index1","","","",""

"CASID","Not Stochastic","","","","Chemical Abstract System Identification",1,STRING,con.FSCASID

"Variable","FSCNAME","Site","Index1","Index2","","",""

"SOILLR","Continuous","1/yr","Min",0,"Max",100,"Leach rate constant",1,FLOAT

"Variable","FSCNAME","Site","Index1","Index2","","",""

"SOILKD","Continuous","ml/g","Min",0,"Max",1000000,"Soil adsorbtion coefficient",1,FLOAT

"Variable","FSCNAME","Site","Index1","Index2","","",""

"RET","Continuous","","Min",0,"Max",1,"Agricultural plant retension fraction of deposited activity",0,FLOAT

"TRN","Continuous","","Min",0,"Max",1,"Tranlocation factors",1,FLOAT

"Variable","TerFood","Index1","","","","",""

"FFC","Continuous","","Min",0,"Max",1,"Feed contamination fraction",1,FLOAT

"Variable","fwAnimal #","Index1","","","","",""

"FWC","Continuous","","Min",0,"Max",1,"Water contamination fraction",1,FLOAT

"Variable","fwAnimal #","Index1","","","","",""

"YLD","Continuous","kg/m^2","Min",0.01,"Max",20,"Feed and crop yields",1,FLOAT

"Variable","TerFood","Index1","","","","",""

"USL","Continuous","kg/day","Min",0,"Max",20,"Animal soil intake rates",1,FLOAT

"Variable","fwAnimal #","Index1","","","","",""

"TCRP","Continuous","day","Min",0,"Max",365,"Harvest delay times",1,FLOAT

"Variable","TerFood","Index1","","","","",""

"TGRW","Continuous","day","Min",10,"Max",365,"Growing period",2,FLOAT

"Variable","TerFood","Index1","","","","",""

"Variable","Media","Index2","","","","",""

"DEN","Continuous","kg/m^2","Min",1,"Max",2000,"Agricultural areal soil density",0,FLOAT

"UMT","Continuous","kg/day","Min",0,"Max",200,"Meat animal intake rate of feed",0,FLOAT

"UMK","Continuous","kg/day","Min",0,"Max",200,"Milk animal intake rate of feed",0,FLOAT

"WMT","Continuous","L/day","Min",0,"Max",300,"Meat animal intake rate of water",0,FLOAT

"WMK","Continuous","L/day","Min",0,"Max",300,"Milk animal intake rate of water",0,FLOAT

"CML","Continuous","kg/m^3","Min",0.000000000001,"Max",0.0001,"Airborne particulate mass loading factor",0,FLOAT

"RESFAC","Continuous","1/m","Min",0.000000000001,"Max",0.0002,"Atmospheric resuspension factor",0,FLOAT

"ANDFC","Continuous","L/m^3","Min",0,"Max",10,"Andelman inhalation factor for volatile chemicals",0,FLOAT

"ANDFR","Continuous","L/m^3","Min",0,"Max",10,"Andelman inhalation factor for radon-222",0,FLOAT

"ANDFO","Continuous","L/m^3","Min",0,"Max",10,"Andelman inhalation factor for other pollutants",0,FLOAT

"pathways","Not Stochastic","","","","Exposure route and path",0,STRING

"media","Not Stochastic","","","","Exposure media",0,STRING

"terFood","Not Stochastic","","","","Terrestrial food",0,STRING

"fwAnimal","Not Stochastic","","","","Fed and watered",0,STRING

"ecshalf","Continuous","day","Min",0,"","Physical loss half-time in soil",1,FLOAT

"Variable","FSCNAME","Site","Index1","Index2","","",""

"ecghalf","Continuous","day","Min",0,"","Physical loss half-time in groundwater",1,FLOAT

"Variable","FSCNAME","Site","Index1","Index2","","",""

"ecthalf","Continuous","day","Min",0,"","Physical loss half-time in air",1,FLOAT

"Variable","FSCNAME","Site","Index1","Index2","","",""

"ecwhalf","Continuous","day","Min",0,"","Physical loss half-time in surface water",1,FLOAT

"Variable","FSCNAME","Site","Index1","Index2","","",""

"ecclass","Not Stochastic","","","","USDA Soil texture classification",0,INTEGER

"ecsand","Not Stochastic","percent","","","Percent sand in soil",0,FLOAT

"ecsilt","Not Stochastic","percent","","","Percent silt in soil",0,FLOAT

"ecclay","Not Stochastic","percent","","","Percent clay in soil",0,FLOAT

"ecomc","Not Stochastic","percent","","","Percent organic matter in soil",0,FLOAT

"eciron","Not Stochastic","percent","","","Percent iron in soil",0,FLOAT

"ecph","Not Stochastic","pH","Min",1,"Max",14,"Soil pH",0,FLOAT

"THICK","Continuous","cm","Min",0,"Max",1000,"Surface soil thickness",0,FLOAT

"MOIST","Continuous","fraction","Min",0,"Max",1,"Surface soil moisture content",0,FLOAT

"BULKD","Continuous","g/cm^3","Min",0.5,"Max",3,"Surface soil bulk density",0,FLOAT

"LEACV","Continuous","cm/yr","Min",0,"Max",500,"Total infiltration rate",0,FLOAT