TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

LONG EXPOSURE [1 record]

Record 1 1995-03-28

English

Subject field(s)
  • Toxicology
  • Environmental Studies and Analyses
  • Occupational Health and Safety
CONT

Long-term exposure is the last classification of exposure in industrial toxicology. This exposure is not typically found in the industrial environment but is used extensively in laboratory applications. Even with novel work hours, workers rarely exceed 16 hours on the job. Therefore, long-term exposure is not as valuable in the industrial environment as it has been in laboratory testing. Long-term generally relates to exposures of greater than one year in length and is usually used in carcinogen testing of animals.

French

Domaine(s)
  • Toxicologie
  • Études et analyses environnementales
  • Santé et sécurité au travail
CONT

[...] on ne sait encore quel est l'aspect réel de la courbe dose-effet pour les expositions à long terme à de faibles concentrations de micropolluants [...]

CONT

[...] risques pathologiques [...] associés à l'exposition prolongée à divers micropolluants présents dans l'environnement [...]

OBS

Voir aussi les fiches «chronic exposure», «chronic effect», «chronic poisoning» et «short-term exposure».

Spanish

Campo(s) temático(s)
  • Toxicología
  • Estudios y análisis del medio ambiente
  • Salud y seguridad en el trabajo
DEF

Es la exposición continua o repetida a una sustancia a lo largo de un período de tiempo extenso, es decir, de varios años en el hombre y de la mayor parte del tiempo de vida total en los animales

CONT

En cuanto a la relación exposición-efecto de SO2 y PST en exposiciones a largo plazo, se tienen evidencias de que a 100 [símbolo de microgramos]/m3 de SO2 se presenta un incremento de síntomas respiratorios o enfermedades respiratorias y a 180 [símbolo de microgramos]/m3 de PST hay una disminución de la función pulmonar

Key term(s)
  • exposición prolongada
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