Inhalation Unit Risk definition

Inhalation Unit Risk means the upper-bound lifetime excess cancer risk estimated to result from continuous exposure to a toxic air contaminant at a concentration of 1 µg/m³ in air. The interpretation of inhalation unit risk would be as follows: if unit risk = 2 × 10⁻⁶ per µg/m³, then two excess cancer cases (upper bound estimate) are expected to develop per one million people if exposed daily for 70 years to one microgram of the toxic air contaminant per cubic meter of air.
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Inhalation Unit Risk means the upper-bound excess lifetime cancer risk estimated to result from continuous exposure to an air toxic at a concentration of 1 µg/m³ in air. The interpretation of inhalation unit risk would be as follows: if unit risk = 2 × 10⁻⁶ per µg/m³, 2 excess cancer cases (upper bound estimate) are expected to develop per 1,000,000 people if exposed daily for 70 years to 1 µg of the air toxic per m³ of air.
Sample 1Sample 2
Inhalation Unit Risk means the upper-bound lifetime excess cancer risk estimated to result from continuous exposure to a toxic air contaminant at a concentration of 1 ¾g/m¾ in air. The interpretation of
Sample 1

Examples of Inhalation Unit Risk in a sentence

  • APPENDIX B‌APPENDIX B CHEMICALS ON IRIS WITH EXTRAPOLATED INHALATION UNIT RISKS Table B-1 contains chemicals on the Environmental Protection Agency’s (EPA’s) Integrated Risk Information System (IRIS) with Inhalation Unit Risk (IUR) values calculated by extrapolation using the default ventilation rate and body weight from the oral Cancer Slope Factor (CSF).

  • In 1991, EPA concluded that formaldehyde is a carcinogen based on nasal tumors in animal bioassays.82 An Inhalation Unit Risk for cancer and a Reference Dose for oral noncancer effects were developed by the Agency and posted on the Integrated Risk Information System (IRIS) database.

  • California (CA) Scientific Review Panel (SRP) accepted OEHHA Cancer Inhalation Unit Risk Factor (IUR) report.

  • Cancer Unit Risk: For inhalation exposures, EPA is adopting the use of Inhalation Unit Risk (IUR) instead of cancer slope factors in determining cancer-related risk levels.

  • All values are shown to 2 significant figures.Complete Less-than-Lifetime Inhalation Unit Risk (IURLTL) values are available in Appendix E (Table E-4).

  • This study is also the basis for the Inhalation Unit Risk (IUR) published on EPA’s Integrated Risk Information System (IRIS) (USEPA, 1998).

  • Lifetime Inhalation Unit Risk (IUR) (f/cc)-1 and Less-than-Lifetime Inhalation Unit Risk (IURLTL) (f/cc)-1 Values for Various Continuous Exposure ScenariosAge at first Duration of exposure (years)exposure (years)05102030 * LT in this table means continuous lifetime exposure beginning at birth and lasting until death of the individual.

  • Study Cohort Author, YearStudy Cohort Author, YearShaded rows indicate studies used for derivation of Inhalation Unit Risk (IUR).2.2. Data Evaluation Scoring Sheets: Lung Cancer Outcome‌ 2.2.1. Epidemiology evaluation results of the South Carolina, US‌ cohort studies on asbestos exposure and lung cancer incidence Study reference: This cohort evaluation represents all identified publications pertaining to the South Carolina cohort of textile workers.

  • First, the Inhalation Unit Risk (IUR) was derived using linear extrapolation and then a benchmark dose lower bound (BMDL1.0) was established as the Point of Departure (POD).

  • Risk calculation based on 95% UCL= 0.3475 µg/m3 (determined by JCDH) and Inhalation Unit Risk = 0.000000017 (1/µg/m3) (determined by U.S. EPA).

Related to Inhalation Unit Risk

  • Generation Unit means a facility that converts a fuel or an energy resource into electrical energy.

  • Diversion unit means any probation counselor who enters into

  • Production Unit means a facility for generation of electricity made up of a single generation unit or of an aggregation of generation units;

  • CO2 means carbon dioxide.

  • Cogeneration unit means a unit that is able to operate in cogeneration mode;

  • Generating Unit means one or more generating equipment combinations typically consisting of prime mover(s), electric generator(s), electric transformer(s), steam generator(s) and air emission control devices.

  • Negative pressure respirator (tight fitting) means a respirator in which the air pressure inside the facepiece is negative during inhalation with respect to the ambient air pressure outside the respirator.

  • Backpressure means a pressure (caused by a pump, elevated tank or piping, boiler, or other means) on the consumer's side of the service connection that is greater than the pressure provided by the public water system and which may cause backflow.

  • Biomass means the biodegradable fraction of products, waste and residues from biological origin from agriculture (including vegetal and animal substances), forestry and related industries including fisheries and aquaculture, as well as the biodegradable fraction of industrial and municipal waste;

  • High global warming potential hydrofluorocarbons means any hydrofluorocarbons in a particular end use for which EPA’s Significant New Alternatives Policy (SNAP) program has identified other acceptable alternatives that have lower global warming potential. The SNAP list of alternatives is found at 40 CFR part 82, subpart G, with supplemental tables of alternatives available at (http://www.epa.gov/snap/ ).

  • Easily cleanable means that surfaces are readily accessible and made of such materials and finish and so fabricated that residue may be effectively removed by normal cleaning methods.

  • Electric generating unit means an individual electric generator and its associated plant and apparatus whose electrical output is capable of being separately identified and metered. Emergency Condition shall mean a condition or situation: (1) that in the judgment of the Party making the claim is imminently likely to endanger life or property; or (2) that, in the case of the CAISO, is imminently likely (as determined in a non-discriminatory manner) to cause a material adverse effect on the security of, or damage to, the CAISO Controlled Grid or the electric systems of others to which the CAISO Controlled Grid is directly connected; (3) that, in the case of the Participating TO, is imminently likely (as determined in a non-discriminatory manner) to cause a material adverse effect on the security of, or damage to, the Participating TO’s Transmission System, Participating TO’s Interconnection Facilities, Distribution System, or the electric systems of others to which the Participating TO’s electric system is directly connected; or

  • Livery vehicle means a motor vehicle that:

  • Tetrahydrocannabinol means the natural or synthetic equivalents of the substances contained in the plant, or in the resinous extractives of, Cannabis sativa, or any synthetic substances, compounds, salts, or derivatives of the plant or chemicals and their isomers with similar chemical structure and pharmacological activity.

  • Total tetrahydrocannabinol means the sum of the percentage by weight of tetrahydrocannabinolic acid multiplied by eight hundred seventy-seven thousandths plus the percentage of weight of tetrahydrocannabinol.

  • Compression Ignition Engine means an internal combustion engine with operating characteristics significantly similar to the theoretical diesel combustion cycle. The regulation of power by controlling fuel supply in lieu of a throttle is indicative of a compression ignition engine.

  • high risk breach means that the threshold for notifying the individual is higher than that for notifying the relevant supervisory authority.

  • Vapor balance system means a combination of pipes or hoses which create a closed system between the vapor spaces of an unloading tank and a receiving tank such that vapors displaced from the receiving tank are transferred to the tank being unloaded.

  • Sustainability Risk means an environmental, social or governance event or condition that, if it occurs, could cause an actual or a potential material negative impact on the value of the investment;

  • Emission unit means any article, machine, equipment, operation, or contrivance that emits or has the potential to emit any federally regulated air pollutant.

  • High-temperature coating means a high performance coating labeled and formulated for application to substrates exposed continuously or intermittently to temperatures above 204oC (400oF).

  • Carbon regeneration unit means any enclosed thermal treatment device used to regenerate spent activated carbon.

  • aerodrome means a defined area on land or water (including any buildings, installations and equipment) intended to be used either wholly or in part for the arrival, departure and surface movement of aircraft;

  • Hydrozone means a portion of the landscaped area having plants with similar water needs. A hydrozone may be irrigated or non-irrigated.

  • Cannabinoid edible means food or potable liquid into which a cannabinoid concentrate, cannabinoid extract or dried marijuana leaves or flowers have been incorporated.

  • CBM means Capacity Benefit Margin.