Vol. 8 & Issue 3 ; Section D : Environmental Sciences

Date : May 2018 to July 2018

 

Impact of cyclonic storm Ockhi on the quality of water in two famous temple tanks located along the banks of Pazhayar River, Kanyakumari district, South India

Dr. P. Maria Pushpam and P.Asirvathappan,

JCBPS; Section D; May 2018 – July - 2018, Vol. 8, No. 3; 151-155.

[DOI: 10.24214/jcbps.D.8.3.15155]

  • Abstract

    The aim of the current study was to evaluate the impact of cyclonic storm Ockhi on the quality of water in Arulmigu Nagaraja temple tank in Nagercoil and Arulmigu Sthanumalaya Swamy temple tank in Suchindrum of Kanniyakumari district with respect to different physicochemical parameters.

Influence of Diogo heavy mineral sand mining process on physical and chemical characteristics and microbiological properties of dune soils in the northern coastal line of Senegal

Mandiéré FALL, Dioumacor FALL , Saliou NDIAYE, Idrissa GUIRO, Niokhor BAKHOUM, Diegane DIOUF ,

JCBPS; Section D; May 2018 – July - 2018, Vol. 8, No. 3; 156-171.

[DOI: 10.24214/jcbps.D.8.3.15671]

  • Abstract

    Whilst important for the Senegalese economy, mining may causes destruction of vegetation, soil degradation and other environmental impacts. Our study aimed to assess the effect of the Diogo mineral sand process on the physical and chemical characteristics and microbiological properties of dunes soils in order to successfully rehabilitate the mined area in the northern coast of Senegal. Soils were sampled before and after mining at 0-20, 20-40, 40-60, 60-100 cm, 4-5 and 9-10 m horizons in dry season (March). Results showed that depth and the interaction between
    depth and mining had no significant effect on physical and chemical characteristics (pH,electrical conductivity, carbon, nitrogen, exchangeable bases, granulometry) of dune soils. However, mined dune soils demonstrated significantly decreased electrical conductivity, calcium, potassium, manganese and cation exchange capacity. No significant effect of mining was observed on total carbon and total nitrogen. However, a significant increase in pH, phosphorus, magnesium, sodium, iron, saturation rate, clays, silts and coarse sands was noted in the tailings. The depth had no significant negative effect on soil total microbial biomass, Azospirillum, Phosphobacteria populations. In contrast, mining decreased these microorganisms. AMF spores, Azospirillum and Phosphobacteria were significantly higher before than after mining at 4-5 m horizon. Mining process modified the structure of soil microbial communities and decreased the number and the activities of soil microorganisms. Mineral sand mining process alters the physical and chemical parameters, decreases the microorganism richness and modifies the structure of microbial communities of soil. However, it is necessary to follow the dynamic of these parameters during the years of site rehabilitation.

Physicochemical and Bacteriological Assessment of Some Drinking Water Sources around Student Hostel in Ekiti State University, Ado-Ekiti

Onifade Olajumoke Evelyn ; Faeji Charles Oluwafemi  ; Owoeye Josiah Abolade  and Onipede heresa,

JCBPS; Section D; May 2018 – July - 2018, Vol. 8, No. 3; 172-184.

[DOI: 10.24214/jcbps.D.8.3.17284]

  • Abstract

    The physicochemical and bacteriological assessment of water sources in Ekiti State University, Ado-Ekiti campus and its environ was done. In this study, a total of ten (10) water sources (borehole and well) were sampled. The Total bacteria and coliform enumeration were determined using pour plating and multiple tube techniques, the antibiotic susceptibility was carried out using disc diffusion method, while physico-chemical and mineral studies were also carried out using standard methods. It revealed that all the mineral content of the water samples falls within the recommended limits set by Standard Organization of Nigeria for Drinking Water. The Total Bacteria Count mean value ranges between 2.0 X 102 CFU/ml to 60.0 X 102CFU/ml. The percentage distribution of bacteria isolated from water samples analysed revealed that Escherichia coli (32.00%) had the highest occurrence, followed by Klebsiella spp. (20.00%), Enterobacter spp. (16.3%), Staphylococcus aureus (16.0%), Serratia spp. (8.00%) and Shigella spp. (8.00%). The antibiotics sensitivity test showed resistance of the isolates to the respective antibiotics in the corresponding percentage; Nitrofurantoin (33%), Gentamycin (60%), Clotrimazole (80.95%) Ofloxacin (33%), Amoxicillin (95%), Ciprofloxacin (76.17%), Tetracycline (71.43%), Perfloxacin (80.95%), Augmentin (80.95%) and Ceftriaxone (66.67%). This study revealed the presence of coliform and other pathogens in the water samples which indicates risk involved in the consumption of water from such sources, and therefore could be hazardous to human health, hence the need for proper and adequate treatment of water from these sources