Abstract The scientific report assessed the impact of Nalla Lai wastewater on groundwater quality Rawalpindi city, Pakistan. A total 19 and 49 samples were collected during September October 2016 have been analyzed in laboratory to detect different water parameters. results revealed that BOD (biological oxygen demand), COD (chemical iron, cadmium values many beyond recommended value National En...

conclusions given the high levels of arsenic in the rivash water sources, it is essential that a plan be devised to replace the current supply with safe drinking water. moreover, these water resources should be monitored regularly regarding the risk of contamination with arsenic. results the average arsenic levels in stations a, b, c, d, e, f, g, h, i, and j were 1.53 ± 1.03, 1.30 ± 1.07, 10.55...

Human caliciviruses (HuCVs) cause waterborne outbreaks of gastroenteritis. Standard indicators of a safe water supply do not adequately predict contamination of water by viruses, including HuCVs. We developed a method to concentrate and detect HuCVs in water samples by using a cultivable primate calicivirus (Pan-1) as a model. Viable Pan-1 was seeded in different types of water and then filtere...

Listeria monocytogenes is an important pathogen which causes an infection called listeriosis. Because of the high mortality rate (~30%) associated with listeriosis, and the widespread nature of the organism, it is a major concern for food and water microbiologists since it has been isolated from various types of foods, including seafood, as well as from the aqueous environment. To investigate t...

Thirty samples of soil were taken at 50-m intersections on a grid pattern over an area of 250 x 200 m within a single field with nominally uniform soil characteristics. Incubations of isoproturon (3-(4-isopropylphenyl)-1,1-dimethylurea) under standard conditions (15 degrees C; -33 kPa soil water potential) indicated considerable variation in degradation rate of the herbicide, with the time to 5...

1,4-Dioxane has been identified as a probable human carcinogen and an emerging contaminant in drinking water. The United States Environmental Protection Agency's (U.S. EPA) National Exposure Research Laboratory (NERL) has developed a method for the analysis of 1,4-dioxane in drinking water at ng/L concentrations. The method consists of an activated carbon solid-phase extraction of 500-mL or 100...

background: mosquitoes lay eggs in a wide range of habitats with different physicochemical parameters. ecological data, including physicochemical factors of oviposition sites, play an important role in integrated vector management. those data help the managers to make the best decision in controlling the aquatic stages of vectors especially using source reduction. methods: to study some physico...