Hazard quotient definition
Hazard quotient means the ratio of the level of exposure of a chemical of concern over a specified time period to a reference dose for that chemical of concern derived for a similar exposure period. Unless otherwise specified, the hazard quotient designated in these rules is one.
Hazard quotient or “HQ” means the ratio of a single substance exposure level over a specified time period (e.g., subchronic) to a reference dose for that substance derived from a similar exposure period.
Hazard quotient or “HQ” means the ratio of the dose of a single hazardous substance over a specified time period to a reference dose for that hazardous substance derived for a similar exposure period.
More Definitions of Hazard quotient
Hazard quotient means the ratio of a single substance exposure level during a specified time period to a reference dose for that substance derived from a similar exposure period.
Hazard quotient means the estimated dose, or intake, for a specific chemical and a specific pathway, divided by the Reference Dose (RfD).
Hazard quotient means the ratio of a single contaminant exposure level over a specified time period to a reference dose for that contaminant derived from a similar period.
Hazard quotient or “HQ” means the quotient determined from the equation EDI
Hazard quotient means the ratio of exposed dose to some reference dose or reference concentration.
Hazard quotient means the ratio of the exposure of a single hazardous substance over a specified time period to a reference dose, or reference concentration where appropriate, for that hazardous sub- stance derived for a similar exposure period.
Hazard quotient means the value which quantifies noncarcinogenic risk for one chemical for one receptor population over a specified exposure period. The hazard quotient is equal to the ratio of a chemical-specific intake to the reference dose.