Assessment of heavy metals concentration in soils around oil filling and service stations in Tamale Metropolis, Ghana

No Abstrac

Assessment of pond effluent effect on water quality of Asuofia Stream, Ghana

No Abstrac

Assessment of quality of piped water supplied to households in Western Accra (Ghana)

The quality of treated water supplied to Western part of Accra from the Weija Headwork has been assessed. While the quality of water from the Headwork was found to be acceptable by WHO standards, more than half of water samples collected from household taps contained total coliform bacteria (0 - 120 CFU/100 mL), and less than a quarter indicated faecal coliform (0 - 25 CFU/100 mL) contamination. The coliform bacteria in the tap water probably originated from intrusion of coliform-infested water, or growth of E Coli in the distribution sys-tem. Frequent breaks in many of the pipe lines resulted in water leakages, which also served as conduits for contaminant transport into the distribution system. Such contamination could also be enhanced through inciden-ce of negative water pressure from water rationing

Assessment of the energy recovery potentials of solid waste generated in Akosombo, Ghana

No Abstrac

Assessment of quality of drinking water in Amasaman, Accra (Ghana)

The physico-chemical and microbial quality attributes of untreated water samples from hand dug wells and treated water delivered by tankers (mobile services) were assessed to determine the susceptibility of Amasaman community to water borne diseases. The physico-chemical parameters of all the water sources for domestic use were within the World Health Organization (WHO) drinking water guidelines and Ghana Standards (GS), with the exception of turbidity and colour which showed higher values for the well waters. With respect to the micro-bial quality, the waters from the hand-dug wells and tanker services showed presence of both total and faecal coliforms, at levels higher than WHO and GS values of zero counts per 100 mL for drinking water. The poor microbial quality (presence of coliform bacteria) of all the water samples suggested susceptibility and exposure of the community to waterborne diseases on continuously drinking the available water

Principal component analysis of groundwater quality data underlying Geochemical processes of Dahomeyan formation and Togo series in the Ho Municipality (Ghana)

The physico-chemical quality data of groundwater extracted from 36 boreholes in Ho Municipality indicated that 11 sources recorded pH values outside WHO guideline range, while 5 recorded turbidity levels above WHO guideline limits. Sodium levels ranged from 1.80 to 544 mg/L with a mean of 111 ± 132 mg/l; chloride level ranged from 2.98 to 898 mg/L with a mean of 124 ± 183 mg/L, and cation and anion dominance was in the ord-er Na+ > Mg2+ > Ca2+ > K+ and HCO3- > Cl- > SO42- respectively. The quality data was subjected to Principal Component Analysis, and two components (PC1 and PC2) were extracted. The PC1 represented nearly 88.17 % of the variance and had high absolute loadings for electrical conductivity, calcium, alkalinity and chloride, indi-cating interactions of minerals from the Dahomeyan formation and Togo series with the groundwater in the area. The PC2 accounted for 6.62 % of total variance, showing high loadings for colour, turbidity, HCO3 and total iron. The major geochemical processes taking place might be the presence and dissolution of carbonates and dolomites, evaporated minerals and chemical reactions involving reverse ion-exchange in the aquife