subchronic effect
Biological change resulting from an environmental alteration lasting about 10 % of the lifetime of the test organism.
Subchronic
Of intermediate duration, usually used to describe studies or periods of exposure lasting between 5 and 90 days
Submerged Aquatic Vegetation ...
Subchronic Exposure: Multiple or continuous exposures lasting for approximately ten percent of an experimental species lifetime, usually over a three-month period.
Acceptable intake (for subchronic and chronic exposure)
Numbers which describe how toxic a chemical is. The numbers are derived from animal studies of the relationship between dose and non-cancer effects.
The HI is calculated separately for chronic, subchronic and shorter-duration exposures. The HI indicates the risk from the presence of multiple substances at one site, or exposures to the same chemicals through multiple media and pathways.
Chronic toxicity is 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. Subchronic toxicity ...
 See also: Concentration, Site, Toxic, Table, Characteristic
  
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