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E3 Journal of Medical Research

E3 Journal of Medical Research Vol. 1 (8) pp. 098-0102, September 2012; © E3 Journals; ISSN 2276-9900

The hematological changes of fish exposed to sublethal concentration of quarry dust

Emmanuel Titus Friday1 * , Ibiam Udu Ama2 , Momoh Sanni1
1 Department of Biochemistry, kogi State University, Anyigba, Nigeria
2 Department of Biochemistry Ebonyi State University, Abakaliki, Nigeria
*Corresponding Author E-mail:
Accepted 6 September 2012


Fishes (Clarias batrachus) were exposed to sublethal concentration of 10mg/L, 15mg/L and 35mg/L quarry dust (QD) on 15 and 30 days of exposure, haematology changes was determined on the blood obtained respectively with Junior Haematology Analyser. The values obtained shows of white blood cell (WBC), lymphocytes count (LYM), Lymphocytes percentage (LY), platelet percentage (PCT) were higher in fishes exposed with all concentration of the QD both in the short term (15 days) and long term (30 days) exposure, while Granulocytes percentage (GR) Red blood cell (RBC), Haemoglobin (HB), Heamatocrit percentage (HCT), mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC) and platelet PLT were lower than the control as compared, however they statistically show that the difference in 15 days in WBC, in 10mg/L exposure HGB in 15 – 25mg/L and PCT in 10mg/L exposure were not significant P>0.05. The result also showed that there were elevation in WBC, LYM, LY, MCH, MCHCH, PLC, PCT in fishes exposed for long term (LTE) compared to the short term exposure (STE), while all other parameter were decrease. Thus, the significant changes in some of the haematological parameters in most the concentrations administered suggest that quarry dust may have accumulative effect if exposed to quarry dust at higher concentration or lower but for long period of time.

Keywords: Exposure; Haematology; short term; long term; sublethal concentration

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