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Effects of Roofing Sheets on Harvested Water Run-Off
ABSTRACT
Harvested water run-off from five different houses with stone-coated roofs was sampled in Ichida, Anambra state for the effect of the roof on the harvested water. The pH and metal content of the harvested water run-off were analyzed. The result of the analysis was compared with the World Health Organization standard.
The results showed that the pH ranged from 6.4 – 7.2 and the concentration of the heavy metals for lead ranged from 0.143 – 0.244, for copper 0.011– 0.066, for aluminum range from 0.00 – 0.085, for silicon range from 0.0191 – 0.748, for iron rage from 0.033 – 0.122,
for zinc range from 0.323 – 0.665 and for chromium range from 0.108 – 0.213. it was observed that all the lead, silicon content of all the 5 houses and aluminum content of house 2 and 5 were above the WHO standard, whereas others were all below the WHO standard. Harvested water run- off is hazardous to health.
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Effects of Roofing Sheets on Harvested Water Run Off
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