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 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 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.

Examples of Hazard quotient in a sentence

• If the subsidized firm is state owned, it may suffer from agency issues.

• Hazard quotient" is the value which quantifies non-carcinogenic risk for one chemical for one receptor population over a specified exposure period.

• Human health risk assessment indices (i.e., Hazard quotient and Total hazard index) were considerably below the potential to cause human risk hazards, except the THI at Bagega that has a value >1.0 for children ingestion of heavy metals (i.e., a non-cancerhealth risk for ingestion of heavy metals exists).

• Although Heptachlor epoxide, Endosulfan II and Methoxychlor concentrations suggested the possibility of non-cancer and cancer risk within the populace, the analysis focused on water samples because the communities depend solely on the water for drinking and swimming.The analytical assessment through the mathematical models revealed that Hazard quotient (HQ) and cancer risk showed that non-cancer and cancer risk could occur.

• Hazard quotient (HQ)The hazard quotient designed by the US EPA (2000) is the ratio of the dietary exposure (amount of potential hazardous substance consumed) to a substance and the standard reference doze which represents the dosage of consumption over time without any appreciable health risk[40].

More Definitions of Hazard quotient

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 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 means the ratio of exposed dose to some reference dose or reference concentration.

Hazard quotient or “HQ” means the quotient determined from the equation EDI

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.

Hazard quotient means the ratio of 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.