Village water-supplies

The quality of water in small community supplies of Kingolwira village, Morogoro, Tanzania.

Water quality is an important aspect in human health, as the majority of infectious diseases that cause morbidity and mortality in population are water related. The present study was undertaken to assess the quality of water in Kingolwira, Morogoro Rural District, Tanzania. Water was collected from different sites in the village and analysed for a period of six months. Physical, chemical and mi...

Village rural water supplies in the Western Highlands Province of Papua New Guinea.

The 1980's have been declared the "International Water Supply and Sanitation Decade". The Papua New Guinea (PNG) Government has committed itself to spending K2.5 million between 1982-1985 on rural water supplies. The experience for such a programme in the Western Highlands is reviewed. Between 1975 and June 1981 there were 101 installation, 69 of which were inspected. Of these, 40.6% were worki...

Chemical contamination of water supplies.

Man-made organic chemicals have been found in drinking water for many years. Their numbers and varieties increase as our analytical capabilities improve. The identified chemicals comprise 10 to 20% of the total organic matter present. These are volatile or low molecular weight compounds which are easily identified. Many of them are carcinogenic or mutagenic. Chlorinated compounds have been foun...

Adding fluoride to water supplies.

Bacterial nitrification in chloraminated water supplies.

Nitrifying bacteria were detected in 64% of samples collected from five chloraminated water supplies in South Australia and in 20.7% of samples that contained more than 5.0 mg of monochloramine per liter. Laboratory experiments confirmed that nitrifying bacteria are relatively resistant to the disinfectant. Increased numbers of the bacteria were associated with accelerated decays of monochloram...