Odourous compounds in raw water of water supplies.

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...

Enumeration and characterization of standard plate count bacteria in chlorinated and raw water supplies.

Nearly 700 standard plate count (SPC) bacteria were isolated from drinking water and untreated surface water and identified according to a scheme developed to permit the rapid, simple classification of microorganisms to genus, species, or group. Actinomycetes and Aeromonas species were the two most common groups of SPC bacteria in chlorinated distribution water. Aeromonas spp. and Enterobacter ...

Adding fluoride to water supplies.

Incidence of coliphage in potable water supplies.

Samples of drinking water from different sources in greater Cairo, Egypt, and bottled drinking water were tested for total coliform, fecal coliform, and coliphage populations. Of the 147 samples tested, 4 samples were positive for both total coliforms and coliphage, 65 samples were negative for total coliforms, fecal coliforms, and coliphage, and 78 samples were positive for coliphage and negat...

The water supplies and water requirements of the modern state.

This is a vast subject and I cannot hope to do more than touch the fringes of it in the short space allotted to me. Clearly, water is the most important and widely used raw material of all. It is vital in every sense of that word. I t is a primary requirement of vegetable life and of animal life (and here I include human life). I need not stress its many domestic uses. Water is essential in pro...