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lowest-effect level

См. также в других словарях:

  • lowest observed adverse effect level — (LOAEL), lowest observed effect level (LOEL) in studies of the toxicity of chemicals, the lowest dosage level at which chronic exposure to the substance shows adverse effects; usually calculated for laboratory animals …   Medical dictionary

  • lowest-observed-adverse-effect level — abbr. LOAEL The lowest exposure level at which there are statistically or biologically significant increases in frequency or severity of adverse effects between the exposed population and its appropriate control group (US EPA 2002) …   Petroleum refining glossary

  • No observable adverse effect level — The no observable adverse effect level (NOAEL) denotes the level of exposure of an organism, found by experiment or observation, at which there is no biologically or statistically significant (e.g. alteration of morphology, functional capacity,… …   Wikipedia

  • Trophic level — First trophic level The plants in this image, and the algae and phytoplankton in the lake, are primary producers. They take nutrients from the soil or the water, and manufacture their own food by photosynthesis, using energy from the sun. The… …   Wikipedia

  • Biosafety level — A biosafety level is the level of the biocontainment precautions required to isolate dangerous biological agents in an enclosed facility. The levels of containment range from the lowest biosafety level 1 (BSL 1) to the highest at level 4 (BSL 4) …   Wikipedia

  • Mars effect — A Gauqelin diagram mapping incidence of birth time and latitude to the natal position of Mars relative to the ecliptic of the rotating earth, showing peaks just after its daily rising and culmination in mid heaven (horizon and mid heaven are… …   Wikipedia

  • Sea level — For the sea level change associated with the current episode of global warming, see current sea level rise. For other uses, see Sea level (disambiguation). This marker indicating the sea level is placed on the path from Jerusalem to the Dead Sea …   Wikipedia

  • Energy level — A quantum mechanical system or particle that is bound that is, confined spatially can only take on certain discrete values of energy. This contrasts with classical particles, which can have any energy. These discrete values are called energy… …   Wikipedia

  • Stack effect — is the movement of air into and out of buildings, chimneys, flue gas stacks, or other containers, and is driven by buoyancy. Buoyancy occurs due to a difference in indoor to outdoor air density resulting from temperature and moisture differences …   Wikipedia

  • Current sea level rise — This article is about the current and future rise in sea level associated with global warming. For sea level changes in Earth s history, see Sea level#Changes through geologic time. Sea level measurements from 23 long tide gauge records in… …   Wikipedia

  • Rebound effect (conservation) — The term rebound effect is used in conservation, energy economics and green marketing. It refers to the behavioral or other systemic responses to the introduction of new technologies, or other measures taken to reduce resource use. These… …   Wikipedia

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