Turkish Journal of Fisheries and Aquatic Sciences
2021, Vol 21, Num, 9 (Pages: 443-450)
Evaluation of Water Quality and Heavy Metal Pollution in the Shoots and Roots of Aquatic Plants
Olamide Olaronke Olawusi-Peters 1
1 Federal University of Technology Akure, Department of Fisheries and Aquaculture Technology, Nigeria
DOI :
10.4194/1303-2712-v21_9_03
Viewed :
1660
-
Downloaded :
1699
The safety of vegetables has been an issue of public concern in recent years. Thus,
heavy metals (Cu, Cd, Mn, Pb, Zn and Fe) in the shoot and root of Sacciolepis africana,
Ceratophyllun demersum and Pistia stratiotes in Owena reservoir, Nigeria were tested
using Atomic Absorption Spectrophotometer while some Physico-chemical
parameters of water were measured using multi parameter hand-held meter. The
water quality result revealed that the average temperature, turbidity, conductivity,
dissolved oxygen and pH were 27.77oC, 7.21NTU, 101.83Ω/S, 6.95mg/l and 6.55
respectively. The single factor pollution index showed that Temperature (0.93), DO
(0.99) and pH (0.99) fell within the category of slight pollution while turbidity (1.20)
and conductivity (1.02) fell within the medium pollution category. Sacciolepis africana
bio-concentrated more heavy metals than Ceratophyllun demersum and Pistia
stratiotes. The HRIs of Cu, Cd, Mn, Zn and Fe indicated no risk since all values were less
than 1. However, there was a potential risk for Pb through the consumption of the
plants despite that the HRI of the shoot of Ceratophyllun demersum (0.65) and root of
Pistia stratiotes (0.46) were less than 1. The THQ and HI values for the root and shoot
of all the vegetables were less than 1, indicating that they are unlikely to result in any
chronic systemic risk-averse health effects.
Keywords :
Ceratophyllun demersum, Pistia stratiotes, Sacciolepis Africana, Hazard Index (HI), Target Cancer Risk (TR)