L(E)C50 definition

L(E)C50 means LC50 or EC50.
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Related to L(E)C50

  • LC50 means the concentration of toxicant (e.g., effluent) which is lethal to 50 percent of the test organisms exposed in the time period prescribed by the test.

  • Grab sample means an individual sample collected in less than 15 minutes in conjunction with an instantaneous flow measurement.