D.I. Olorunfemi

Groundwater consumption is increasing due to high susceptibility of contamination of other sources. In this study, the consumption, contamination and management of groundwater resource in Isiohor quarters in Edo State were evaluated. A total of 300 questionnaires were randomly administered and laboratory analysis was carried out to determine the physicochemical parameters of the water samples collected. The results obtained showed that 94.7% of the respondents depend on groundwater as against 5.3% that use harvested rainwater.

Population dynamics studies reveal the fluctuations in an organism’s population over time, in relation to prevailing climatic conditions; thus providing a fundamental background for evaluating and determining appropriate control strategies for adoption. This study in Bayelsa State, Southern Nigeria has revealed that C. sordidus population experiences a gradual build-up with onset of rains (early March), and attain peaks between May and early November.

Genotoxicity testing represents a powerful line of evidence for assessing impacts from chemical contaminants in drinking water. In this study, fifteen brands of sachet water, five of which do not have the National Agency for Food and Drug Administration and Control (NAFDAC) registration numbers, were collected in the Benin metropolitan city square in Edo State of Nigeria and subjected to cytological evaluation using the macroscopic and microscopic parameters in Allium cepa L.