Hazard quotient definition

Hazard quotient 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 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 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

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

• Hazard quotient for the oral route uptake for adults was calculated for As, Cd, Cr, Cu, Fe, Mn, Mo, Ni, Se, Sn, Sr, U and V for those parts of the plant that are eaten e.g. lettuce leaves, onion bulbs.

• Summary of Vinyl Chloride (VC) (ppb) evaluation• ATSDR’s health comparison value Cancer Risk Evaluation Guide is 0.025 ppb.• State and Federal drinking water standard (MCL) is 2 ppb.• Maximum VC level found in drinking water was 0.261 ppb.• Acceptable non-cancer hazard quotient = 1.• Hazard quotient range from dermal contact = < 1.• EPA target cancer risk range = 1x10-4 to 1x10-6.• Estimated range of excess cancer risk from dermal contact = 4x10-11 to 8x10-11.

• DietChild Adult Female Adult Male Hazard quotient Hazard quotient Hazard quotientAverage Frequent Average Frequent Average FrequentBack- grounda Toxicological Evaluation Health EffectsFor a given set of conditions, the toxicity of specific DLCs depends on the number and position of the chlorine atoms.

• Hazard quotient values were determined based on chronic benchmarks.

More Definitions of Hazard quotient

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 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.

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

Hazard quotient means a ratio of the level of exposure of a chemical over a specified time period to a “reference dose”, as defined in subparagraph (jjj) of this rule, for that chemical of concern derived for a similar exposure period.