long-term exposure antonym acute exposure Continued exposure or exposures occurring over an extended period of time, or a significant fraction of the test species' or of the group of individuals& [..]

A frequent or continuous exposure to a toxic agent over an unspecified, but generally lengthy, period of time.

A long-term constant or intermittent exposure to a substance which may have an impact on health over time.

exposure to a substance over a long period of time, possibly resulting in adverse health effects. See also acute exposure, fractionated exposure.

Exposure to sources of Ionising Radiation over a long period of time, possibly resulting in adverse health effects such as cancer or genetic disorders in offspring of exposed parents. Likely result of [..]

Repeated contact with a chemical over a period of time, often involving small amounts of toxic substance.

Multiple exposures occurring over an extended period of time or over a significant fraction of an animal's or human's lifetime (Usually seven years to a lifetime.)

A continuous or repeated exposure to a hazardous substance over a long period of time.

Contact with a substance that occurs over a long time (more than 1 year) [compare with acute exposure and intermediate duration exposure]

Multiple exposures occurring over an extended period of time or over a significant fraction of an animal's or human's lifetime (Usually seven years to a lifetime.)

Long-term exposure, usually lasting one year to a lifetime.

long-term exposure to chemicals or pollutants, lasting anywhere from several weeks to a lifetime

Long-term contact with a substance, usually lasting from several weeks to a lifetime.

  A contact with a substance or chemical that happens over a long period of time. ATSDR considers exposures of more than one year to be chronic.

Multiple exposures occurring over an extended period of time or over a significant fraction of an animal's or human's lifetime (Usually seven years to a lifetime.)

adsorption:

 exposure to a chemical for a relatively long period of time (for example, 365 days (1 year) or more for humans). cfAcute exposure