Background level definition

Background level means the concentration of substances widely present in the soil, sediment, air, surface water or groundwater in the vicinity of a facility, or at a comparable reference area, due to natural causes or human activities other than releases from, or activities on, the facility, as determined by the Department.
Background level means the concentration of a substance or the value of an indicator in a body of groundwater corresponding to no, or only very minor, anthropogenic alterations to undisturbed conditions;
Background level means the conditions at a property and areas surrounding a property that are unaffected by any current or past activities involving treatment, storage, or disposal of hazardous substances or petroleum. "Background level" includes naturally occurring substances.

Examples of Background level in a sentence

  • Background level is established as the dose rate of one meter above the ground near the work area.

  • Background level monitoring - A method used to determine ambient airborne concentrations inside and outside of a building or structure prior to starting an abatement project.

  • Background level seismicity is characterized by scattered individual events or minor sequences (< 4 events per day) commonly organized in clusters or alignments.

  • The sub-advisory fees that we receive are negotiated between us and the principal third-party adviser for each sub-advised strategy.

  • Background level of ATP (i.e. drinking water) is subtracted from samples contaminated with wastewater of various dilutions (LuminATE reagent kit).


More Definitions of Background level

Background level means the level of an indicator in surface waters or their aquatic ecosystem, outside the influence of any waste containing a measurable level of that indicator.
Background level means the average emissions caused by natural disturbances in a given time period, excluding statistical outliers, calculated in accordance with Article 9(2);
Background level means the air within the man's inhalation zone;
Background level means the concentration of a substance or the value of an indicator in a
Background level means the average emissions caused by natural disturbances in a given time period, excluding stat­ istical outliers, calculated in accordance with Article 9(2);
Background level means the level of an indicator (measured in a manner and at a location specified by the Environmental Protection Authority) in marine waters, sediments or biota, outside the influence of any current or historical discharges containing a measurable level of that indicator;
Background level means the alpha, beta and gamma activity of radioactive elements which occur naturally in the air, water or soils at the facility site.