Dilution Attenuation Factor definition

Dilution Attenuation Factor or "DAF" means a unitless number greater than or equal to unity and represents the ratio of dissolved phase concentration at a downgradient location to the concentration at an upgradient location. It represents the reduction in concentration due to the combined influence of several factors (diffusion, dispersion, adsorption, decay, volatilization). It is applicable for all media, but is most commonly used for the unsaturated and saturated zones. DAF is generally estimated using a fate and transport model or based on site-specific data.
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Dilution Attenuation Factor means the ratio of the contaminant concentration in soil leachate to the concentration in groundwater at the receptor point.
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Related to Dilution Attenuation Factor

  • Dilution Factors means, without duplication, with respect to any period, the aggregate amount of all deductions, credit memos, returns, adjustments, allowances, bad debt write-offs and other non-cash credits which are recorded to reduce accounts receivable in a manner consistent with current and historical accounting practices of the Borrowers.

  • Loss Factor means the scaling factor determined in accordance with clause 6 and applied by the reconciliation manager to volumes of electricity measured or estimated in respect of ICPs on the Network, in order to reflect the impact of the ICP on Losses within the Network;

  • Inflation Factor means a number determined for each tax year by dividing the consumer price

  • Required Accumulation Factor Number shall be equal to a fraction, rounded upwards to the nearest whole number, the numerator of which is one and the denominator of which is equal to the lowest monthly principal payment rate on the Accounts, expressed as a decimal, for the three months preceding the date of such calculation.

  • Dilution Volatility Component means, at any time, the product (expressed as a percentage) of (i) the difference between (a) the highest three-month rolling average Dilution Ratio over the 12-month period then most recently ended and (b) the Adjusted Dilution Ratio, and (ii) a fraction, the numerator of which is equal to the amount calculated in (i)(a) of this definition and the denominator of which is equal to the amount calculated in (i)(b) of this definition.