Air quality simulation model definition

Air quality simulation model means a mathematical procedure, taking into account the dispersive capacity of the atmosphere, meteorological data, topography, and other relevant factors, to predict the concentration of an air contaminant in the ambient air. Such procedure may entail use of a mathematical model or a physical model.
Air quality simulation model means a mathematical procedure for predicting the ambient air concentration of pollutants resulting from the dispersive properties of the atmosphere.

Related to Air quality simulation model

  • Ambient air quality standard means an established concentration, exposure time, and frequency of occurrence of air contaminant(s) in the ambient air which shall not be exceeded.

  • High Quality Waters means all state waters, except:

  • National Ambient Air Quality Standards or “NAAQS” means national ambient air quality standards that are promulgated pursuant to Section 109 of the Act, 42 U.S.C. § 7409.

  • Applicable water quality standards means all water quality standards to which a discharge is subject under the federal Clean Water Act and which has been (a) approved or permitted to remain in effect by the Administrator following submission to the Administrator pursuant to Section 303(a) of the Act, or (b) promulgated by the Director pursuant to Section 303(b) or 303(c) of the Act, and standards promulgated under (APCEC) Regulation No. 2, as amended.

  • Water quality standards means provisions of state or federal law which consist of a designated use or uses for the waters of the Commonwealth and water quality criteria for such waters based upon such uses. Water quality standards are to protect the public health or welfare, enhance the quality of water and serve the purposes of the State Water Control Law (§ 62.1-44.2 et seq. of the Code of Virginia) and the federal Clean Water Act (33 USC § 1251 et seq.).

  • Water quality volume means the volume equal to the first one-half inch of runoff multiplied by the impervious surface of the land development project.

  • service delivery and budget implementation plan means a detailed plan approved by the executive mayor of a municipality in terms of section 53(l)(c)(ii) of the MFMA for implementing the municipality's delivery of municipal services and its annual budget, and which must indicate

  • Radiation therapy simulation system means a radiographic or fluoroscopic x-ray system intended for localizing the volume to be exposed during radiation therapy and confirming the position and size of the therapeutic irradiation field.

  • Biological safety cabinet means a containment unit suitable for the preparation of low to moderate risk agents where there is a need for protection of the product, personnel, and environment, according to National Sanitation Foundation (NSF) Standard 49.

  • General air quality operating permit or "general permit" means an air quality operating permit that meets the requirements of ARM 17.8.1222, covers multiple sources in a source category, and is issued in lieu of individual permits being issued to each source.

  • Annual Resource Price Adder means, for Delivery Years starting June 1, 2014 and ending May 31, 2017, an addition to the marginal value of Unforced Capacity and the Extended Summer Resource Price Adder as necessary to reflect the price of Annual Resources required to meet the applicable Minimum Annual Resource Requirement. Annual Revenue Rate:

  • Combustion turbine means an enclosed fossil or other fuel-fired device that is comprised of a compressor, a combustor, and a turbine, and in which the flue gas resulting from the combustion of fuel in the combustor passes through the turbine, rotating the turbine.

  • Backflow Prevention Assembly means any mechanical assembly installed at a water service line or at a plumbing fixture to prevent a backflow contamination event, provided that the mechanical assembly is appropriate for the identified contaminant at the cross connection and is an in-line field-testable assembly.

  • Aviation gasoline means fuel designed for use in the operation of aircraft other than jet aircraft,

  • Technical Specifications means the detailed requirements for the Work furnished by the Architect and set forth in Book 3 of the Contract Documents.

  • Web Site Accessibility Standards/Specifications means standards contained in Title 1 Texas Administrative Code Chapter 206.

  • technical specification means, with respect to any Software, the document setting forth the technical specifications for such Software and included in the Statement of Work.

  • Quality system means documented organizational procedures and policies: internal audits of those policies and procedures: management review and recommendation for quality improvement.”

  • Water treatment plant means that portion of the water supply system which in some way alters the physical, chemical, or bacteriological quality of the water.

  • Beam scattering foil means a thin piece of material (usually metallic) placed in the beam to scatter a beam of electrons in order to provide a more uniform electron distribution in the useful beam.

  • Categorical pretreatment standard or "categorical standard" means any regulation containing pollutant discharge limits promulgated by the environmental protection agency in accordance with sections 307(b) and (c) of the Act (33 U.S.C. section 1317) that apply to a specific category of users and that appear in 40 CFR chapter I, subchapter N, parts 405 through 471.

  • health and safety specification means a site, activity or project specific document prepared by the client pertaining to all health and safety requirements related to construction work;

  • Functional Specifications means the descriptions of features and functions of the Application as expressly set forth in Quote.

  • MSAA Indicator Technical Specifications document means, as the context requires, either or both of the document entitled “Multi-Sector Service Accountability Agreement (MSAA) 2019-20 Indicator Technical Specifications November 5, 2018 Version 1.3” and the document entitled “Multi-Sector Service Accountability Agreement (MSAA) 2019-20 Target and Corridor-Setting Guidelines” as they may be amended or replaced from time to time;

  • Water quality means the physical characteristics of water within shoreline jurisdiction, including water quantity, hydrological, physical, chemical, aesthetic, recreation-related, and biological characteristics. Where used in this chapter, the term "water quantity" refers only to development and uses regulated under this chapter and affecting water quantity, such as impermeable surfaces and storm water handling practices. Water quantity, for purposes of this chapter, does not mean the withdrawal of ground water or diversion of surface water pursuant to RCW 90.03.250 through 90.03.340.

  • Web Site Accessibility Standards/Specifications means standards contained in Title 1 Texas Administrative Code Chapter 206.