+44 330 818 7254Ogeleka D.F, Ezemonye L.I.N., and Okieimen F.E
Lethal toxic effects of industrial detergent (Neatex) and corrosion inhibitor (Norust CR 486) commonly released into the Nigerian environment were studied using standard laboratory toxicity test. Bioindicators (fish, shrimp and earthworms) were exposed to varying concentrations of the test chemicals using the Organisation for Economic Cooperation and Development (OECD) # 203, 218 and 207 protocols respectively. The water, sediment and soil ratings indicate that both chemicals were slightly toxic to the organisms and the estimated 4, 10 and 14 days lethal concentration (LC50) showed that the corrosion inhibitor was more toxic than the industrial detergent. There was differential toxicity between organisms exposed to the test chemicals in the three media and the control groups at (p < 0.05). The observed sensitivity of the test organisms to both chemicals in the different media provides a basis for regular checks on chemicals discharged into the Niger Delta waters, this is because most of the chemicals released into the environment sorb to the soil and sediment particles and can cause harm to organisms in the soils, sediment and overlying waters.
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