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

• The larger a population, the greater the number of sensitive individuals it may contain. Background level: whether a given odour source, because of its location, is likely to contribute to a cumulative odour impact.

• If you’re in a class that focuses on one author – like Faulkner – then it will be vitally important that you get to the library and get the books you think you’re going to need early because everyone elsein that class will most likely need those same books.

• Background level is normally defined as the sound that is exceeded for 90% of a time interval (T).

More Definitions of Background level

Background level means the level of an indicator in surface waters 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 alpha, beta and gamma activity of radioactive elements which occur naturally in the air, water or soils at the facility site.

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 concentration of a substance or the value of an indicator in a

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;