Keywords
sea water
heavy metals
Badagry
borehole
How to Cite
Abstract
The extent of water pollution on some rivers and lagoons within Badagry and its environs in Lagos State Nigeria has been critical analyzedwith respect to the physico-chemical properties of the surface and underground waters and the results show that total dissolved solids for sea water ranged from 4523-4408 ppm, lagoon water 622-1471 ppm and borehole water 250-61 ppm. Total suspended solid for sea water ranged from 422-231 ppm, lagoon water 129-133 ppm and borehole water 41-146 ppm. Salinity values for sea water ranged from 0.3-0.3 ppm, lagoon 0.5-0.3 ppm and borehole water 0.1-0.3 ppm. Methyl orange alkalinity for sea water ranged from 3.5-3.0 ppm, lagoon water 1.1-1.0 ppm and borehole water 0.5-0.8 ppm. Phenolphthalein alkalinity for sea water ranged from 0.4-0.2 ppm, lagoon water 0.2-0.3 ppm and borehole water 0.1-0.2 ppm. Specific gravity for sea water ranged from 16.371-16.407 ppm, lagoon water 15.878-15.673 ppm and borehole water 15.554-15.839 ppm. Heavy metals such as Ca2+ for sea water ranged from 436-427, lagoon water 497-488 and borehole water 345-336. Mg2+ for sea water ranged from 128-136, lagoon water 133-189 and borehole water 112-116. Fe2+ for sea water ranged from 2.546-2.512, lagoon water 2,786-2.869 and borehole water 1.465-1.354. Cu2+ for sea water ranged from 2.84-2.62, lagoon water 3.86-3.86 and borehole water 0.84-0.93. Mn2+ for sea water ranged from 0.756-0.726, lagoon water 1.026-1.022 and borehole water 0.450-0.470. Cr2+ for sea water ranged from 1.07-1.248, lagoon water 1.897-1.957 and borehole water 0.026-0.028. Bio-chemical analysis such as temperature for sea water ranged from 27.5-28.5 ?C, lagoon water 29.8-28.7 ?C and borehole water 27.6-27.8 ?C. pH for sea water ranged from 6.8-6.8, lagoon water 6.9-7.0 and borehole 7.3-7.2. BOD and COD in see water ranged from 754-766; 1876-1833 mg/l respectively, lagoon water 978-986; 1943-1982 mg/l respectively whereas the dissolved oxygen for borehole water ranged from 5.54-5.66 mg/l
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