Background concentration definition

Background concentration means such concentration of that substance as is present in:
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Background concentration means the same as “background quantity” as defined in paragraph 11 to Part 2 to Schedule1 of the PPC Regulations.
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Background concentration means such concentration of that substance as is present in: for emissions to surface water, the surface water quality up-gradient of the site; or
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Examples of Background concentration in a sentence

  • Background concentration, the level of air contaminants that cannot be reduced by controlling emissions from man-made sources.

  • While the report refers to “Global/Regional background ambient airquality” (Appendix 10.1-A iii and following), in reality it is a Regional Background concentration that is needed since a global background is considered to be the background concentration of pollutants away from the influence of individual sources, and the study area is strongly influenced by terrestrial pollutant emissions from upwind surfaces on the scale of a few hundred kilometres.

  • As being 1/9th of 0.5 mg/m3).Note [5] Where IED specifies aggregated limits for the selected group 2 metals Cadmium and Thallium the emission rate for each metal has been assumed to be 100% of the aggregated limit.Note [6] Background concentration for CrVI assumed to be 20% of Total Chromium in accordance with EPAQS guidelines.Note [7] For the assessment of CrVI, see 5.2.3 below.Note [8] Total VOC emission assumed to be 1,3 - butadiene.Note [9] Total PAH emission assumed to be benzo[a]pyrene (B[a]P).

  • Note 2 Background concentration unknown.Note 3 Background concentration from APIS website.

  • Background concentration samples were not taken during the test; however, background levels were observed to be minimal.


More Definitions of Background concentration

Background concentration means the test substance concentrations in the whole-vehicle test chamber when the test vehicle is inside;
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Background concentration means the concentration or level of a hazardous substance that exists in the environment at or regionally proximate to a facility that is not attributable to any release at or regionally proximate to the facility. A person may demonstrate that a hazardous substance is not present at a level that exceeds background concentration by any of the following methods:
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Background concentration means the concentration of a contaminant in ground water upgradient or a lateral hydraulically equivalent point from a facility, practice, or activity, and which has not been affected by that facility, practice, or activity.
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Background concentration means that concentration of a constituent that is established as the background in accordance with subsection (d); and
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Background concentration means the level of naturally occurring contaminant in soil.
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Background concentration means the concentration of a substance in groundwater or surface water as determined by monitoring at locations which are not to be affected by the mining site.
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Background concentration means the concentration of an air contaminant which is due to natural sources. “Beryllium” means the element beryllium. Where weight or concentrations are specified, such weights or concentrations apply to beryllium only, excluding the weight or concentration of any associated elements.
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