This study assessed the sanitary condition and quality of selected wells and boreholes in Shika, Zaria Nigeria. Fifty samples each were collected during the dry and wet seasons. This involved sanitary survey, water quality assessment, isolation and characterization of Shiga toxin-producing O157:H7 (STEC) and, antibiogram assay. Based on the risk of contamination, wells (72%) had a high risk of contamination, while boreholes (44%) had low risk of contamination. Their physicochemical quality varied with season and location, and mean total coliform (TC) and faecal coliform (FC) were significantly lower in the dry season (p < 0.05). STEC were isolated from only wells with a prevalence of 4%, and exhibited a multidrug resistance pattern (amoxicillin, erythromycin and tetracycline). There was a strong positive correlation between sanitary status and water quality. The high- and very high-risk categories (wells) were strongly correlated with TC, FC, BOD, phosphate, turbidity and pH. .
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/09603123.2022.2111409 | DOI Listing |
Front Public Health
January 2025
Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.
The burden of disease and death attributable to environmental pollution is a growing public health challenge worldwide, particularly in developing countries. While the adverse effects of environmental pollution on oral health have garnered increasing attention, a comprehensive and systematic assessment remains lacking. This article delves into the intricate relationship between environmental pollution and oral health, highlighting significant impacts on various aspects such as dental caries, periodontal diseases, oral facial clefts, cancer, as well as other oral diseases.
View Article and Find Full Text PDFOpen Forum Infect Dis
January 2025
Department of Medicine, UMass Chan Medical School, Worcester, Massachusetts, USA.
Background: Blood culture contaminants can lead to inappropriate antibiotic use, prolonged length of stay, and additional hospital costs. Several devices have been developed to reduce the risk of blood culture contamination by diverting a portion of the initial blood sample from the blood culture bottle. We assessed the effectiveness of 1 blood diversion device (BDD) in a prospective trial performed at the 2 separate emergency departments (EDs) of an academic medical center.
View Article and Find Full Text PDFFood Chem (Oxf)
June 2025
Sciensano, Transversal activities in Applied Genomics (TAG), J. Wytsmanstraat 14, 1050 Brussels, Belgium.
Genetically modified microorganisms (GMM) are frequently employed for the production of microbial fermentation products such as food enzymes. Although presence of the GMM or its recombinant DNA in the final product is not authorized, contaminations occur frequently. Insight into the contamination source of a GMM is of crucial importance to allow the competent authorities to take appropriate action.
View Article and Find Full Text PDFHeliyon
January 2025
Laboratorio de Investigación de Aguas, Universidad Nacional del Centro del Perú, Av. Mariscal Castilla N° 3989-4089, Huancayo, Peru.
Introduction: Contamination of drinking water by can cause serious diseases, including cancer. The determinants of the infection rate are socioeconomic status, low standard of living and overcrowding. In addition, exposure to environmental sources contaminated with feces, such as water and vegetables, is another risk factor for infection.
View Article and Find Full Text PDFEnviron Technol
January 2025
School of Civil Engineering and Architecture, Guangxi University, Nanning, People's Republic of China.
The diffusion of heavy metal pollutants in polluted industrial areas can cause severe environmental pollution in surrounding areas. However, the migration of pollutants into groundwater is a complex process that requires consideration of local geological and hydrological conditions, solute transport, and geochemistry factors to better predict the flow paths and plume dispersion of pollutants. This study is based on numerical models of Darcy's law and the Richards equation.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!