Observations from a six month study on the effect of biodegradation processes in sediment on the toxicity potential of targeted chemicals
✍ Scribed by Dutka, B. J. ;Liu, D. ;Jurkovic, A. ;McInnis, R. ;Lee, H.-B. ;Onuska, F. ;Rao, S. S.
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 123 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1053-4725
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✦ Synopsis
To illustrate the difficulties and problems involved in assessing the effect of biodegradation processes in sediments on the toxicity potential of targeted chemicals, a study was carried out to ( ) examine the relationship of aerobic and anaerobic biodegradation on the ecotoxicity of two priority ( ) organic chemicals nonylphenol and aniline . The chemicals were spiked into heavily polluted Hamilton ( Harbour sediments and over a period of 6 six months the changes in toxicity and genotoxicity as ) assessed by 10 short-term bioassays of the spiked sediments and their metabolites were monitored. The results indicated that under anaerobic conditions nonylphenol levels increased in concentration, while aniline quickly degraded under aerobic conditions and a little slower under anaerobic conditions.The data also revealed the inherent wide variability in toxicant distribution in homogenized sediment samples.