Exposure Point Concentration definition

Exposure Point Concentration means either a statistical derivation of measured data or modeled data that represents an estimate of the chemical concentration available from a particular medium or route of exposure. The exposure point concentration value is used to quantify potential cancer risks and non-cancer hazards.
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Exposure Point Concentration means the concentration of a contaminant of concern in an environmental medium at a location of exposure to that environmental medium.
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Examples of Exposure Point Concentration in a sentence

  • The risk to the IOU onsite worker from Cs-137 (Exposure Point Concentration [EPC] = 148 pCi/g) is 8.2E-04 (decay corrected to 6.4E-04).

  • The following worksheets provide information on Exposure Point Concentration (EPCs), equations to calculate cancer and noncancer risk (“C Eq” and “N Eq”), exposure assumptions (“Exp”), and chemical-specific information (“Chem”) drawn from the Vlookup workbook.

  • Appendix C - Exposure Point Concentration (EPC) An important variable in most risk assessments is the concentration term.

  • For the residential evaluations, HERO implements the risk-based concentration as a residential use scenario Exposure Point Concentration (EPC), calculated as the 95 percent upper confidence limit on the arithmetic mean (95% UCL) of 80 mg/kg or less soil lead.

  • RGs Must be Developed and Applied in the Context of Exposure Area and the Exposure Point Concentration.

  • The maximum value used as the Exposure Point Concentration (EPC) for this assessment ranges from 300 to 10,000 times all other measured concentrations.

  • Gattis did not control whether the breaker room was locked because Gattis did not have the key.

  • Example 11: Initial Estimate of Exposure Point Concentration for Total PCBs The risk assessor has calculated the upper 95th-percent confidence limit on the arithmetic mean concentration of total PCBs based on Tier I measurements.

  • Pages 5-7 through 5-31, Tables 5-2 through 5-21: show in each table the value used as the Exposure Point Concentration.

  • For each oil and/or hazardous material in each medium at each Exposure Point, an Exposure Point Concentration (EPC) is identified and documented.

Related to Exposure Point Concentration

  • Baseline concentration means that ambient concentration level that exists in the baseline area at the time of the applicable minor source baseline date. A baseline concentration is deter- mined for each pollutant for which a minor source baseline date is estab- lished and shall include:

  • Net concentration means the difference between the concentration of a given substance in a sample taken of the discharge and the concentration of the same substances in a sample taken at the intake which supplies water to the given process. For the purpose of this definition, samples that are taken to determine the net concentration shall always be 24-hour composite samples made up of at least six increments taken at regular intervals throughout the plant day.

  • median concentration means that half of the homes in a county are expected to be below this value and half to be above it. All houses contain some radon, and a few houses will contain much more than the median concentration. The only way to accurately assess long-term exposure to radon in a specific house is through long-term testing (sampling the indoor air for a year or more). The EPA recommends that all homes be tested for radon. Columbia University's "Radon Project" website offers help to homeowners in assessing the cost vs. benefit of testing a specific house for radon or modifying it for radon reduction (see http://www.stat.columbia.edu/~radon/).

  • In-stream Waste Concentration or "(IWC)" means the concentration of a discharge in the receiving water after mixing has occurred in the allocated zone of influence.

  • Residual disinfectant concentration (“C” in CT cal- culations) means the concentration of disinfectant measured in mg/l in a representative sample of water.

  • Concentration Reserve Percentage means, at any time of determination, the largest of: (a) the sum of the five (5) largest Obligor Percentages of the Group D Obligors, (b) the sum of the three (3) largest Obligor Percentages of the Group C Obligors, (c) the sum of the two (2) largest Obligor Percentages of the Group B Obligors and (d) the largest Obligor Percentage of the Group A Obligors.

  • Alcohol concentration means the number of grams of alcohol per:

  • Excess Concentration means, without duplication, the sum of the following amounts:

  • Chemical Storage Facility means a building, portion of a building, or exterior area adjacent to a building used for the storage of any chemical or chemically reactive products.

  • Derived air concentration (DAC) means the concentration of a given radionuclide in air which, if breathed by the reference man for a working year of 2,000 hours under conditions of light work, results in an intake of one ALI. For purposes of these regulations, the condition of light work is an inhalation rate of 1.2 cubic meters of air per hour for 2,000 hours in a year. DAC values are given in Part 4, Appendix 4B, Table 4B1, Column 3.

  • iron ore concentrates means products (whether in pellet or other form) resulting from secondary processing but does not include metallised agglomerates;

  • Concentration Percentage means (i) for any Group A Obligor, 10.00%, (ii) for any Group B Obligor, 8.00%, (iii) for any Group C Obligor, 6.00% and (iv) for any Group D Obligor, 4.00%.

  • Collection Point means the collection point for the Vehicle specified in the Confirmation and/or Rental Agreement;

  • Critical Test Concentration or "(CTC)" means the specified effluent dilution at which the Permittee is to conduct a single-concentration Aquatic Toxicity Test.

  • Concentration means the weight of any given material present in a unit volume of liquid. Unless otherwise indicated in this permit, concentration values shall be expressed in milligrams per liter (mg/l).

  • Maximum Concentration Level Assessment means the Maximum Concentration Level Assessment for the purposes of a Basic Comprehensive Certificate of Approval, described in the Basic Comprehensive User Guide, prepared by a Toxicologist using currently available toxicological information, that demonstrates that the concentration at any Point of Impingement for a Compound of Concern that does not have a Ministry Point of Impingement Limit is not likely to cause an adverse effect as defined by the EPA. The concentration at Point of Impingement for a Compound of Concern must be calculated in accordance with O. Reg. 419/05.

  • Proven Mineral Reserve means the economically mineable part of a Measured Mineral Resource. A Proven Mineral Reserve implies a high degree of confidence in the Modifying Factors.

  • Meet Point A point, designated by the Parties, at which one Party’s responsibility for service begins and the other Party’s responsibility ends.

  • Background concentration means such concentration of that substance as is present in:

  • Total hydrocarbons (THC) means the sum of all volatile compounds measurable by a flame ionization detector (FID).

  • Medical marijuana concentrate means a specific subset of Medical Marijuana that was produced by extracting cannabinoids from Medical Marijuana. Categories of Medical Marijuana Concentrate include Water-Based Medical Marijuana Concentrate, Food-Based Medical Marijuana Concentrate and Solvent-Based Medical Marijuana Concentrate.

  • Grade point average or "GPA" means the grade point average earned by an eligible student and reported by the high school or participating institution in which the student was enrolled based on a scale of 4.0 or its equivalent if the high school or participating institution that the student attends does not use the 4.0 grade scale;

  • Measurement Point means the emission source for which continuous emission measurement systems (CEMS) are used for emission measurement, or the cross-section of a pipeline system for which the CO2 flow is determined using continuous measurement systems;

  • Destination Point means the delivery point(s) on Carrier’s System where Product is delivered to Shipper, as such points are specified in Section III of this tariff.

  • Cannabinoid concentrate means a substance obtained by separating cannabinoids from marijuana by:

  • Cannabis processing facility means a person that: