Chronic toxicity definition
Chronic toxicity means concurrent and delayed adverse effects that occur only as a result of a chronic exposure.
Chronic toxicity means that level of pollutants which would, over long durations or recurring exposure, cause a continuous, adverse or unacceptable response in organisms.
Chronic toxicity means the ability of a hazardous substance to cause injury or death to an organism resulting from repeated or constant exposure to the hazardous substance over an extended period of time.
Examples of Chronic toxicity in a sentence
Chronic toxicity – the ability of a substance or mixture of substances to cause harmful effects over an extended period, usually upon repeated or continuous exposure sometimes lasting for the entire life of the exposed organism.
Chronic toxicity is evaluated at the monthly physical examination.
Chronic toxicity is the measure of the sub-lethal effects of a discharge or ambient water sample (e.g., reduced growth or reproduction).
Chronic toxicity is estimated from observations of the sensitivities of a subsample of the species of which an ecosystem might be composed.
Chronic toxicity to aquatic life, especially fish and amphibian eggs, can occur at 1.1 mg/L (▇▇▇▇▇▇▇▇▇ et al., 1979; ▇▇▇▇▇▇▇▇▇▇, 2000).
More Definitions of Chronic toxicity
Chronic toxicity means toxicity involving a stimulus that lingers or continues for a relatively long period relative to the life span of an organism. Chronic effects include, but are not limited to, lethality, growth impairment, behavioral modifications, disease and reduced reproduction.
Chronic toxicity means when the survival, growth, or reproduction, as applicable, for either test species, at the effluent dilution(s) designated in this permit (see Part I.C.), is significantly less (at the 95 percent confidence level) than that observed for the control specimens.
Chronic toxicity means the long term effects on aquatic or terrestrial organisms from exposure to a toxic pollutant as deter- mined by whole or partial life−cycle tests.
Chronic toxicity means the response of an aquatic organism to a concentration of a substance which results in adverse effects such as injury, mortality, reduced growth, or impaired reproduction after period of exposure exceeding 96 hours.
Chronic toxicity means a toxic effect which occurs after repeated or prolonged exposure. Chronic effects may occur some time after exposure has ceased.
Chronic toxicity means an adverse effect, such as reduced reproductive success or growth or poor survival of sensitive life stages occurring as a result of exposure to a substance for a period of time related to the life span of an organism and usually longer than that which causes acute toxicity.
Chronic toxicity means concurrent and delayed adverse effects that occur only as a result of a chronic exposure. Chronic exposure is exposure of an organism for any long period or for a substantial portion of its life span.