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Describes the purpose of the Parameter Source Catalog Find pertinent source documents by selecting the desired model/code, environmental media, exposure pathway, parameter name, and/or contaminant Search the environmental data sources using keywords or phrases.  Search by author, title, report number, and/or abstract. Provides information on a parameter used in a model/code, including the expected parameter units, the environmental media most strongly associated with the parameter, and the exposure pathways dependent on the parameter Determine the parameters used by a model/code in an assessment by selecting the model/code and an exposure pathway Information on the model/codes supported. Latest version information, code manual listings, and contact information.

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Model Web Sites
DandD
EPA PRGs
GENII 2
RESRAD

Parameter Cross Reference

Table C

Common Parameters and Their Correlation to Code-Specific Parameters

 

 

 

 

Code-Specific Parameters

Common Parameters

DandD

EPA PRGs

GENII 2

RESRAD

 

 

 

 

 

Area correction factor

 

Area correction factor

 

 

b parameter

 

 

 

b parameter of unsaturated zone

contaminated zone b parameter

saturated zone b parameter

Building air exchange rate

 

 

 

Building air exchange rate

Building foundation density

 

 

 

Bldg foundation density

Building foundation total porosity

 

 

 

Bldg foundation total porosity

C-12 concentration in contaminated soil

 

 

 

C-12 concentration in contaminated soil

C-12 concentration in local water

 

 

 

C-12 concentration in local water

C-12 evasion flux rate from soil

 

 

 

C-12 evasion flux rate from soil

C-14 evasion flux rate from soil

 

 

 

C-14 evasion flux rate from soil

Crop yield for leafy vegetables

Crop yield for leafy vegetables

 

Standing biomass [wet] for leafy vegetables

Yield for leafy vegetables

Wet weight crop yield for leafy

Crop yield for livestock feed

Crop yield for beef forage

Crop yield for beef grain

Crop yield for beef hay

Crop yield for layer hen forage

Crop yield for layer hen grain

Crop yield for layer hen hay

Crop yield for milk cow forage

Crop yield for milk cow grain

Crop yield for milk cow hay

 

Standing animal feed biomass [wet] for beef animal feed

Standing animal feed biomass [wet] for beef animal forage

Standing animal feed biomass [wet] for egg animal feed

Standing animal feed biomass [wet] for milk animal feed

Standing animal feed biomass [wet] for milk animal forage

Standing animal feed biomass [wet] for poultry animal forage

Yield for animal feed for beef animal feed

Yield for animal feed for beef animal forage

Yield for animal feed for egg animal feed

Yield for animal feed for milk animal feed

Yield for animal feed for milk animal forage

Yield for animal feed for poultry animal forage

Wet weight crop yield for fodder

Crop yield for non-leafy vegetables, fruit, and grain

Crop yield for fruits

Crop yield for grains

Crop yield for roots

 

Standing biomass [wet] for fruits

Standing biomass [wet] for grains

Standing biomass [wet] for root vegetables

Yield for fruits

Yield for grains

Yield for root vegetables

Wet weight crop yield for non-leafy vegetables

Crustacea and mollusks bioaccumulation factor

 

 

 

Bioaccumulation factors for crustacea and mollusks

Deposition velocity

 

 

Deposition velocity from soil to plant surfaces

 

Depth of roots

 

 

 

Depth of roots

Depth of soil mixing layer

 

 

 

Depth of soil mixing layer

Distribution coefficient

Partition coefficient

Kd

Soil adsorption coefficient

Distribution coefficient

Dry/wet ratio

 

 

Animal feed dry/wet ratio for beef animal feed

Animal feed dry/wet ratio for beef animal forage

Animal feed dry/wet ratio for egg animal feed

Animal feed dry/wet ratio for milk animal feed

Animal feed dry/wet ratio for milk animal forage

Animal feed dry/wet ratio for poultry animal feed

Dry/wet ratio for leafy vegetables

Dry/wet ratio for root vegetables

Dry/wet ratio for fruits

Dry/wet ratio for grains

 

Eggs transfer factor

Eggs transfer factor

 

 

 

Erosion rate

 

 

 

Contaminated zone erosion rate

cover erosion rate

Evapotranspiration coefficient

 

 

 

Evapotranspiration coefficient

External shielding factor

Indoor shielding

Outdoor shielding

Gamma shielding factor

Indoor shielding factor

Outdoor shielding factor

Shielding factor

External gamma shielding factor

Field capacity

 

 

 

Contaminated zone field capacity

Field capacity of unsaturated zone

Saturated zone field capacity

Fish bioaccumulation factor

Fish bioaccumulation factor

 

 

Bioaccumulation factors for fish

Fish intake

Diet - fish

Adult fish consumption rate

Child fish consumption rate

Fish intake rate

Aquatic food (fish) consumption rate

Fish consumption

Fraction of vegetation carbon absorbed from air

 

 

 

Fraction of vegetation carbon absorbed from air

Fraction of vegetation carbon absorbed from soil

 

 

 

Fraction of vegetation carbon absorbed from soil

Fruit, non-leafy vegetable, and grain intake

Diet - fruit

Diet - grain

Diet - roots

Adult fruit consumption rate

Child fruit consumption rate

 

Fruit, non-leafy vegetable, and grain consumption

Growing period for leafy vegetables

Growing period for leafy

 

Growing period for leafy vegetables

Growing season for leafy vegetables

Growing period for livestock feed

Growing period for beef forage

Growing period for beef grain

Growing period for beef hay

Growing period for layer hen forage

Growing period for layer hen grain

Growing period for layer hen hay

Growing period for milk cow forage

Growing period for milk cow grain

Growing period for milk cow hay

Growing period for poultry forage

Growing period for poultry grain

Growing period for poultry hay

 

Animal feed growing period for beef animal feed

Animal feed growing period for beef animal forage

Animal feed growing period for egg animal feed

Animal feed growing period for milk animal feed

Animal feed growing period for milk animal forage

Animal feed growing period for poultry animal feed

Growing season for fodder

Growing period for non-leafy vegetables, fruits, and grain

Growing period for fruits

Growing period for grains

Growing period for roots

 

Growing period for fruits

Growing period for grains

Growing period for root vegetables

Growing season for non-leafy vegetables, fruits, and grain

Humidity

 

 

Absolute humidity

Humidity in air

Hydraulic conductivity

 

 

 

Contaminated zone hydraulic conductivity

Hydraulic conductivity of unsaturated zone

Saturated zone hydraulic conductivity

Hydraulic gradient

 

 

 

Saturated zone hydraulic gradient

Indoor air dilution factor

 

Indoor dilution factor

 

Inhalation shielding factor

Infiltration rate

Infiltration rate

 

Total infiltration rate

 

Inhalation rate

Breathing rate

Gardening breathing

Indoor breathing

Outdoor breathing

Adult inhalation rate

Child inhalation rate

Inhalation rate

Air inhalation rate

Indoor air inhalation rate

Resuspended soil inhalation rate

Inhalation rate

Interception fraction for leafy vegetables

Interception fraction for leafy

 

 

Dry foliar interception fraction for leafy vegetables

Wet foliar interception fraction for leafy vegetables

Interception fraction for livestock feed

Interception fraction for beef forage

Interception fraction for beef grain

Interception fraction for beef hay

Interception fraction for layer hen forage

Interception fraction for layer hen grain

Interception fraction for layer hen hay

Interception fraction for cow forage

Interception fraction for cow grain

Interception fraction for cow hay

Interception fraction for poultry forage

Interception fraction for poultry grain

Interception fraction for poultry hay

 

 

Dry foliar interception fraction for fodder

Wet foliar interception fraction for fodder

Interception fraction for non-leafy vegetables, fruits, and grains

Interception fraction for fruits

Interception fraction for grains

Interception fraction for roots

 

Dry deposition retention fraction to plants

Wet deposition retention fraction to plant surfaces

Dry foliar interception fraction for non-leafy vegetables, fruits, and grain

Wet foliar interception fraction for non-leafy vegetables, fruits, and grain

Irrigation rate

 

 

Animal feed irrigation rate for beef animal feed

Animal feed irrigation rate for beef animal forage

Animal feed irrigation rate for egg animal feed

Animal feed irrigation rate for milk animal feed

Animal feed irrigation rate for milk animal forage

Animal feed irrigation rate for poultry animal forage

Animal feed irrigation time for beef animal feed

Animal feed irrigation time for beef animal forage

Animal feed irrigation time for egg animal feed

Animal feed irrigation time for milk animal feed

Animal feed irrigation time for milk animal forage

Animal feed irrigation time for poultry animal forage

Irrigation rate for leafy vegetables

Irrigation rate for root vegetables

Irrigation rate for fruits

Irrigation rate for grains

Irrigation time for leafy vegetables

Irrigation time for root vegetables

Irrigation time for fruits

Irrigation time for grains

Irrigation rate for residential land

Irrigation time for residential land

Irrigation

Leach rate

 

 

Leach rate constant

Leach rate constant

Leafy vegetable intake

Diet - leafy

Adult vegetable consumption rate

Child vegetable consumption rate

Crop consumption period for leafy vegetables for age group # 1

Crop consumption rate for leafy vegetables for age group # 1

Leafy vegetable consumption

Livestock feed intake

Beef intake rate of forage

Beef intake rate of grain

Beef intake rate of hay

Layer hen forage

Layer hen intake rate of grain

Layer hen intake rate of hay

Milk cow intake rate of forage

Milk cow intake rate of grain

Milk cow intake rate of hay

Poultry intake rate of forage

Poultry intake rate of grain

Poultry intake rate of hay

Fodder intake for beef cattle

Fodder intake for dairy cattle

Consumption rate for beef animal feed

Consumption rate for beef animal forage

Consumption rate for egg animal feed

Consumption rate for milk animal feed

Consumption rate for milk animal forage

Consumption rate for poultry animal feed

Livestock fodder intake for meat

Livestock fodder intake for milk

Livestock soil intake

Beef intake rate of soil

Layer hen intake rate of soil

Milk cow intake rate of soil

Poultry intake rate of soil

Soil intake for beef cattle

Soil intake for dairy cattle

 

Livestock intake of soil

Livestock water intake

Beef intake rate of water

Layer hen intake rate of water

Milk cow intake rate of water

Poultry intake rate of water

Water intake for beef cattle

Water intake for dairy cattle

Intake rate of water for beef animal

Intake rate of water for egg animal

Intake rate of water for milk animal

Intake rate of water for poultry animal

Livestock water intake for meat

Livestock water intake for milk

Mass loading

Dust-loading

Floor dust

Gardening dust concentration

Indoor dust concentration

Outdoor dust concentration

 

 

Mass loading for foliar deposition

Mass loading for inhalation

Meat and poultry product intake

Diet - beef

Diet - egg

Diet - poultry

Adult beef consumption rate

Adult poultry consumption rate

Child beef consumption rate

Child poultry consumption rate

Animal product consumption period for beef animal for age group # 1

Animal product consumption rate for beef animal for age group # 1

Meat and poultry consumption

Meat transfer factor

Beef transfer factor

 

 

Transfer factors for meat

Milk intake

Diet - milk

Adult milk consumption rate

Child milk consumption rate

 

Milk consumption

Milk transfer factor

Milk transfer factor

 

 

Transfer factors for milk

Occupancy time/fraction

Time gardening

Time in building

Time indoors

Time on job

Time outdoors

Exposure frequency

Indoor exposure time fraction

Outdoor exposure time fraction

Air inhalation period

Boating days

Daily external ground exposure time

Daily plume immersion exposure time

Duration of boating event

Duration of shoreline use events

Duration of showering event

Duration of swimming event

Fraction of a day indoor inhalation occurs

Fraction of a day inhalation occurs

Fraction of time spent indoors

Fraction of time spent outdoors

Frequency of boating event

Frequency of shoreline use

Frequency of showering event

Frequency of swimming event

Indoor air inhalation period

Resuspended soil inhalation period

Shoreline days

Shoreline width factor

Showering days

Soil contact days

Swimming days

Yearly external ground exposure time

Yearly plume immersion exposure time

Building indoor area factor

Indoor time fraction

Outdoor time fraction

Other seafood intake

 

 

Aquatic food (crustaceans) consumption rate

Aquatic food (mollusks) consumption rate

Aquatic food (water plants) consumption rate

Other seafood consumption

Plant transfer factor

Fruit transfer factor

Grain transfer factor

Leafy vegetable transfer factor

Root vegetable transfer factor

 

 

Transfer factors for plants

Poultry transfer factor

Poultry transfer factor

 

 

 

Precipitation rate

 

 

Average daily rain rate

Precipitation

Radon diffusion coefficient

 

 

 

Bldg foundation radon diffusion coefficient

Contaminated radon diffusion coefficient

Cover radon diffusion coefficient

Radon emanation coefficient

 

 

 

Rn-220 emanation coefficient

Rn-222 emanation coefficient

Radon fraction

 

 

Radon progeny indoor equilibrium fraction for age group # 1

 

Radon vertical dimension of mixing

 

 

 

Radon vertical dimension of mixing

Resuspension factor

Resuspension factor

 

Resuspension factor

 

Resuspension factor from soil to plant surfaces

 

 

Resuspension factor from soil to plant surfaces

 

Runoff coefficient

 

 

 

Runoff coefficient

Soil density

Surface soil density

Unsaturated density

Dry soil bulk density

Soil bulk density

Density of contaminated soil/sediment layer

Shoreline sediment density

Surface soil areal density

Surface soil bulk density

Surface soil density

Density of contaminated zone

Density of cover material

Density of saturated zone

Density of unsaturated zone

Soil intake

Soil ingestion

Transfer rate

Adult soil intake rate

Child soil intake rate

Soil intake rate

Inadvertent soil ingestion rate

Soil ingestion

Soil moisture

Saturation ratio for the surface soil layer

Saturation ratio for the Unsaturated soil layer

Fraction water content

Surface soil moisture content

 

Soil porosity

Layer porosity

Unsaturated porosity

Total soil porosity

Water-filled soil porosity

 

Contaminated zone total porosity

Cover total porosity

Effective porosity of unsaturated zone

Saturated zone effective porosity

Saturated zone total porosity

Total porosity of unsaturated zone

Storage time for animal feed

 

 

Storage time for beef animal feed

Storage time for beef animal forage

Storage time for egg animal feed

Storage time for milk animal feed

Storage time for milk animal forage

Storage time for poultry animal feed

Time from harvest to animal ingestion for fruits

Time from harvest to animal ingestion for grains

Time from harvest to animal ingestion for leafy vegetables

Time from harvest to animal ingestion for root vegetables

 

Storage time for crops

Storage time for fruits

Storage time for grains

Storage time for leafy vegetables

Storage time for roots

 

Time from harvest to ingestion for fruits

Time from harvest to ingestion for grains

Time from harvest to ingestion for leafy vegetables

Time from harvest to ingestion for root vegetables

Storage time for fruits, non-leafy vegetables, and grain

Storage time for leafy vegetables

Storage time for fish

 

 

Time from harvest to ingestion for aquatic plants

Time from harvest to ingestion for crustacea

Time from harvest to ingestion for fish

Time from harvest to ingestion for mollusca

Storage time for crustacea and mollusks

Storage time for fish

Storage time for meat and poultry products

Storage time for beef

Storage time for eggs

Storage time for milk

Storage time for poultry

 

 

Storage time for meat

Storage time for milk

Storage time for water

 

 

Delay time in water distribution system

Storage time for surface water

Storage time for well water

Thickness of evasion layer of

C-14 in soil

 

 

 

Thickness of evasion layer of C-14 in soil

Translocation factor for leafy vegetables

Translocation factor for leafy vegetables

 

Translocation factor for leafy vegetables

Translocation factor for leafy vegetables

Translocation factor for livestock feed

Translocation factor for beef forage

Translocation factor for beef grain

Translocation factor for beef hay

Translocation factor for layer hen forage

Translocation factor for layer hen grain

Translocation factor for layer hen hay

Translocation factor for milk cow forage

Translocation factor for milk cow grain

Translocation factor for milk cow hay

Translocation factor for poultry forage

Translocation factor for poultry grain

Translocation factor for poultry hay

 

Translocation factor for animal feed for beef animal feed

Translocation factor for animal feed for beef animal forage

Translocation factor for animal feed for egg animal feed

Translocation factor for animal feed for milk animal feed

Translocation factor for animal feed for milk animal forage

Translocation factor for animal feed for poultry animal feed

Translocation factor for fodder

Translocation factor for non-leafy vegetables, fruits, and grains

Translocation factor for fruits

Translocation factor for grains

Translocation factor for roots

 

Translocation factor for fruits

Translocation factor for grains

Translocation factor for root vegetables

Translocation factor for non-leafy vegetables

Unsaturated zone thickness

Unsaturated zone thickness

 

 

 

Vegetative cover fraction

 

Fraction of vegetative cover

 

 

Volatilization factor

 

 

Indoor volatilization factor for radionuclides

Indoor volatilization factor for radon

 

Volumetric water content

 

 

 

Bldg foundation volumetric water content

Cover volumetric water content

Water intake

Ingestion rate

Water ingestion

 

Drinking water ingestion period for age group # 1

Drinking water ingestion rate for age group # 1

Ingestion rate of water while showering for age group # 1

Ingestion rate of water while swimming for age group # 1

Drinking water intake

Water table drop rate

 

 

 

Water table drop rate

Water use

Domestic water use

 

 

 

Weathering rate

Weathering rate for activity removal from plants

 

Weathering rate constant from plants

Weathering removal constant for vegetation

Well pump intake depth

 

 

 

Well pump intake depth

Well pumping rate

 

 

 

Well pumping rate

Wet-to-dry conversion for leafy vegetables

Wet-to-dry conversion for leafy vegetables

 

 

 

Wet-to-dry conversion for livestock feed

Wet-to-dry conversion for beef forage

Wet-to-dry conversion for beef grain

Wet-to-dry conversion for beef hay

Wet-to-dry conversion for layer hen forage

Wet-to-dry conversion for layer hen grain

Wet-to-dry conversion for layer hen hay

Wet-to-dry conversion for milk cow forage

Wet-to-dry conversion for milk cow grain

Wet-to-dry conversion for milk cow hay

Wet-to-dry conversion for poultry forage

Wet-to-dry conversion for poultry grain

Wet-to-dry conversion for poultry hay

 

 

 

Wet-to-dry conversion for non-leafy vegetables, fruits, and grains

Wet-to-dry conversion for fruits

Wet-to-dry conversion for grains

Wet-to-dry conversion for roots

 

 

 

Wind speed

 

Equivalent threshold value of wind speed at 7m

Mean annual wind speed

 

Average annual wind speed