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Journal of Applied Sciences
  Year: 2003 | Volume: 3 | Issue: 10 | Page No.: 687-702
DOI: 10.3923/jas.2003.687.702
 
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Evaluation of Lindane and Atrazine Toxicity in Mussels (Mytilus Edulis)
Nahla S. El-Shenawy, Richard Greenwood , Zohour I. Nabil , Ismail M. Abdel-Nabi and Raafat A. Hanna

Abstract:
A study was carried out to evaluate the acute and chronic toxicity of lindane and atrazine in Mytilus edulis. The threshold median lethal dose for lindane was approached at long elapsed times (90 days) when the LC50 was 1.7 mg l-1. The LT50 at a concentration of 30 mg l-1 was 8.4 days which appears to be approaching the limiting time. For atrazine the median lethal threshold concentration was not reached even at the lowest dose (1.25 mg l-1) used and after 112 days the LC50 was 1.6 mg l-1. Similarly a limiting time was not reached even at the highest does (30 mg l-1) when the LT50 was 1.7 days. More marginal concentration and time effects (LC90 and LC10; LT90 and LT10) were also estimated for lindane and atrazine using probit analysis. Valve movement response of the mussels during acute and chronic bioassay toxicity of the pesticides was evaluated as biomarker. The data indicated that the rest period increased with increasing concentration and time of exposure. It could be concluded that there is a time-dose-response relationships of lindane and atrazine with mussels (Mytilus edulis).
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How to cite this article:

Nahla S. El-Shenawy, Richard Greenwood , Zohour I. Nabil , Ismail M. Abdel-Nabi and Raafat A. Hanna , 2003. Evaluation of Lindane and Atrazine Toxicity in Mussels (Mytilus Edulis). Journal of Applied Sciences, 3: 687-702.

DOI: 10.3923/jas.2003.687.702

URL: https://scialert.net/abstract/?doi=jas.2003.687.702

 
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