Toxicity of Dichlorvos (2, 2- Dichlorovinyl Dimethyl Phosphate) on Fish Life | Chapter 07 | Recent Advances in Biological Research Vol. 6
Environmental contaminants are having a
major impact on receiving ecosystems including air, soil and surface water.
Wastes resulting from human activities mostly end up in surface water through
deposition and indirectly through runoff. Indiscriminate application of
pesticides and the remains of empty cans are often improperly discharged. This
possess a threat to the aquatic system especially amongst communities close to
surface water resources. In Nigeria, the use of 2, 2- dichlorovinyl dimethyl
phosphate (an organophosphate insecticide) for the control of insects in
household settings, agricultural field practice and in storage facilities
abounds. 2, 2- dichlorovinyl dimethyl phosphate has different trade names
depending on the region. This study reviewed the toxicity associated with 2, 2-
dichlorovinyl dimethyl phosphate. The study found that the toxicants induces
behavioural and morphological alteration, histopathological, haematological,
biochemical, enzymatic, electrolytes and developmental defects and death
depending on the concentration and exposure duration. The study also found that
insecticides containing 2, 2- dichlorovinyl dimethyl phosphate is toxic to fish
even at low concentrations (0.2 – 2 ppm). Hence, there is the need to exercise
caution in the use and disposal of empty cans of 2, 2- dichlorovinyl dimethyl
phosphate close to surface water.
Author(s) Details
Dr. Sylvester Chibueze Izah
Department of Biological
Sciences, Faculty of Science, Bayelsa Medical University, Yenagoa, Bayelsa
State, Nigeria.
Dr. Glory Richard
Department of Community
Medicine, Faculty of Clinical Sciences, Niger Delta University, Wilberforce
Island, Bayelsa State, Nigeria.
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