We examined potable water in Los Angeles, California, as a possible source of infection in AIDS and non-AIDS patients. Nontuberculous mycobacteria were recovered from 12 (92%) of 13 reservoirs, 45 (82%) of 55 homes, 31 (100%) of 31 commercial buildings, and 15 (100%) of 15 hospitals. Large-restriction-fragment (LRF) pattern analyses were done with AseI. The LRF patterns of Mycobacterium avium i...

Trihalomethanes (THMs) are formed due to chlorination of water containing organic compounds. They have mutagenous and carcinogenic properties. The main representative of this effluent group is chloroform. The objectives of this paper are to determine the removal effectiveness of chloroform from natural water with the application of reverse osmosis, nanofiltration and ultrafiltration as well as ...

Over a Period of three months (summer), 108 samples of water collected from four hospitals in Tehran. They were taken from numerous potable and non-potable water, including main supply cisterns, calorifiers, hot and cold tap water, shower, cooling tower and drain of air condition system. Culturing of concentrated and non-concentrated water samples on Buffered Charcoal Yeast Extract (BCYE) Agar ...

The incidence of dental fluorosis in Sudan ranges from 4.5–100% depending on the fluoride level in potable water. The present study was designed to determine the maximum safe level for fluoride in potable water under the conditions currently prevailing in the affected areas using the Galagan and Vermillion equation which permits the calculation of the upper permissible fluoride level as a funct...

Pneumonia is a leading cause of morbidity and mortality in nursing home patients. In acute care hospitals, there is considerable evidence to indicate that Legionnaires' disease is a significant cause of nosocomial pneumonia, the source of which is the potable water system. A relatively limited amount of data exists as to the role of Legionnaires' disease as a cause of pneumonia acquired in long...

BACKGROUND Research has shown that the absence of electricity and potable water usually result in negative effects on one's health and is more likely to affect women than men. AIM To determine the extent to which alternate electrification and limited potable water, impacts on health. MATERIALS AND METHOD This study is informed by primary and secondary data, representing a sample size of 150...

This paper aims at the analysis of viable bacteria in potable water. Bacteria are the most diverse living beings on earth and only a fraction of them have been identified. The study aims to analyze bacterial abundance in potable water. Sample collection was carried out in 13 different places of Mahabubnagar district of Andhra Pradesh, India. The species were identified based on morphology, bioc...

An estimated 1 billion persons in low-income countries do not have access to improved drinking water. Chlorine, a useful water treatment agent, is less effective in turbid water, and lacks a visible effect, limiting its acceptability. A product incorporating precipitation, coagulation, flocculation, and chlorination technology (combined product) to reduce microbial, organic and heavy metal cont...