BACKGROUND Tap water scalds can be devastating and are entirely preventable. This topic has received notable attention in Canada in recent years, with a national campaign in 2001 directed at parents recommending that they lower the water temperature of their home water heater. This campaign has been evaluated and reported as a successful population-based intervention. OBJECTIVES The present s...

Stable isotopes in water (e.g., δ2H and δ18O) are important indicators of hydrological and ecological patterns and processes. Tap water can reflect integrated features of regional hydrological processes and human activities. China is a large country with significant meteorological and geographical variations. This report presents the first national-scale survey of Stable Isotopes in Tap Water (...

The growth kinetics of Flavobacterium sp. strain S12 specialized in the utilization of glycerol, and a number of oligo- and polysaccharides were determined in batch-culture experiments at 15 degrees C in pasteurized tap water supplied with very low amounts of substrates. Kss for the growth on maltotriose, maltotetraose, maltopentaose, and maltohexaose were 0.03 microM or less and below those fo...

BACKGROUND While both ionizing and nonionizing radiation are known to impair human reproductive capacity, the role of low-level domestic radiation continues to be an unsettled issue. OBJECTIVES We examined the geostatistical distribution (residential longitude and latitude) of orofacial cleft birth cases adjusted for the underlying population distribution. Furthermore, we examined the cleft b...

OBJECTIVE To estimate the associations of acidity and concentration of selected minerals in household tap water with the risk of type 1 diabetes. RESEARCH DESIGN AND METHODS We designed a population-based case-control study with 64 cases of type 1 diabetes and 250 randomly selected control subjects. Acidity, color, and mineral content were measured in tap water from each participant's househo...

A rapid and selective method for trace amounts determination of cyclophosphamide in surface water samples has been developed. A solid phase extraction SPE method for extraction and clean-up procedure has been optimized for determination by reversed-phase high-performance liquid chromatography with tandem mass spectrometry. The analyses proceed in the positive ion mode by means of the electrospr...

Exposure to naturally occurring and man-made radionuclides can occur through drinking water or via inhalation or dermal pathways while showering or during other contact with the water. R adioactivity surrounds us; each day we are exposed to a certain amount by virtue of being alive on planet Earth. Some of this exposure comes from radioactive substances (radionuclides) that occur naturally in a...

We report here a derivatization headspace method for the analysis of inorganic iodine in water. Samples from Lake Mead, the Las Vegas Wash, and from Las Vegas tap water were examined. Lake Mead and the Las Vegas Wash contained a mixture of both iodide and iodate. The average concentration of total inorganic iodine (TII) for Lake Mead was approximately 90 nM with an iodide-to-iodate ratio of app...

The number of breakthrough pathogenic activity in water distribution network system is constantly increasing day by day especially at level of consumption. Bacterial growth or survival rate often relates to acidity and alkalinity of water. Sudden changes in pH value and temperature indicates a possibility of present bacterial contaminant in aqueous environment. The observation of pH- and temper...

background: the environmental degradation products of pesticides may enter drinking water and result in serious health problems. objective: to evaluate the occurrence of insecticides in drinking surface and ground water in dakahlyia governorate, northern egypt in 2011. methods: we studied blood samples collected from 36 consecutive patients diagnosed with pesticides poisoning and 36 tap drinkin...