Abstract
Prediction of safe levels of effluent discharge have in the past been largely based on the results of short term acute toxicity tests (LC 5 0s). Such tests are usually carried out in unnatural experimental conditions, and in consequence the results are of only limited value. There is a need to enlarge the concept of the routine bioassay test to include quantitative measurement of the effects of pollutants on behaviour, physiology and metabolism. This paper describes a simple rapid bioassay test in which the effect of pollutants on the burrowing of the bivalve Tellina tenuis has been used as a quantitative measure of pollutant effect.
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