Risk Equations and Formulas Calculator
Toxicology and Risk Assessment

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Solving for exposure frequency

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Inputs:

administered dose (IA)		milligram/kilogram-day
body weight (BW)		kilogram grain gram milligram pound slug ton long ton metric ton short
averaging time (AT)		second century day decade hour minute week year
exposure point concentration (C)		kilogram/meter^3 gram/centimeter^3 gram/meter^3 milligram/liter pound/foot^3
contact rate (CR)		meter^3/second cc/hour centimeter^3/second centimeter^3/hour deciliter/minute foot^3/minute foot^3/second gallon/minute liter/day liter/minute liter/second meter^3/day meter^3/minute milliliter/hour milliliter/minute
exposure duration (ED)		second century day decade hour minute week year

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Conversions:

administered dose (IA)	=	0		=	0	milligram/kilogram-day
body weight (BW)	=	0		=	0	kilogram
averaging time (AT)	=	0		=	0	day
exposure point concentration (C)	=	0		=	0	milligram/liter
contact rate (CR)	=	0		=	0	liter/day
exposure duration (ED)	=	0		=	0	year

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Solution:

exposure frequency (EF)

=

HAS NOT BEEN CALCULATED

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Other Units:

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References - Books:

1) P. Aarne Vesilind, J. Jeffrey Peirce and Ruth F. Weiner. 1994. Environmental Engineering. Butterworth Heinemann. 3rd ed.
2) Michael D. LaGrega, Phillip L. Buckingham and Jeffery C. Evan. 1994. Hazardous Waste Management. McGraw Hill, Inc.

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