Abstract
AbstractRoutine testing of sediments or suspended sediments for toxicant or genotoxicants by the bioassay route often involves time‐consuming and expensive organic extraction procedures. In most instances these extraction procedures are more time‐consuming and costly than the bioassays that will be used on these extracts. A direct sediment test procedure (DSTP) was developed to alleviate the problem and thus returning bioassays to one of their original roles, i.e., short, quick, screening tests to identify priority samples for more intensive chemical analysis. The DSTP was developed in conjunction with the Toxi‐Chromotest and SOS Chromotest kits. The SOS Chromotest can be used with or without S9. Our results presented in this paper indicate the sensitivity of DSTP and cost effectiveness compared to some commonly used sediment extraction procedures.
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