Minnesota Administrative Rules

4717.8400 EQUATION FOR CALCULATION OF HRVs FOR CARCINOGENS.

Subpart 1.

Scope.

This part establishes the method for determining the health risk values (HRVs) for a carcinogen.

Subp. 2.

Equation for carcinogens.

The equation for determining the HRV for a carcinogen is:

	Additional lifetime risk
HRV =	_
	Unit risk

Where:

A.

HRV is expressed in units of micrograms per cubic meter (µg/m³) of air;

B.

unit risk is expressed in units of micrograms of the chemical or defined mixture of chemicals per cubic meter of air; and

C.

additional lifetime risk is unitless.

Statutory Authority:

MS s 144.12

History:

26 SR 1229

Published Electronically:

May 11, 2009