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 – in pollution, the level of pollutants commonly present in ambient media (air, water, soil).
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 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 noise level of the aggregate of sounds received at a specified measurement point in the absence of contributions of music noise, measured as LA90 or LOCT90 according to the procedures in schedule B.
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 concentration of hazardous substance, if any, existing in the environment in the location of the facility before the occurrence of any past or present release or releases.