A microfluidic device-based system for the rapid and semiautomated counting of bacteria in freshwater was fabricated and examined. Bacteria in groundwater and in potable water, as well as starved Escherichia coli O157:H7 spiked in pond water, were able to be on-chip stained and enumerated within 1 h using this system.

El agua es una necesidad fundamental para el ser humano, sin embargo, no fue hasta año 1958 donde se creó las “Normas Internacionales Agua potable” estableciéndose los parámetros indicar cuando de consumo humano; más adelante sufrió diversas modificaciones su mejor entendimiento. En caso del Perú un derecho constitucional potable por Ley N° 30588, 90.8% tiene acceso al servicio, pero en mayoría...

A total of 254 humans and 489 domestic animals living on farms in the Lublin province (eastern Poland) were examined for the presence of antibodies against Toxoplasma gondii using, respectively, the ELFA and direct agglutination tests. In parallel, 182 samples of potable water, mostly from shallow household wells, were taken on farms and examined for the presence of T. gondii by microscopy and ...

– La présente étude compare deux méthodes de prévision du consente-ment à payer pour de l'eau potable dans des systèmes d'adduction en région semi-urbaine au Sahara. Les deux modèles sont estimés en fonction des caractéristiques hypothétiques de divers points d'adduction possibles. Le premier modèle, reposant sur une régression multiple, prévoit la somme d'argent qu'un ménage consentira à payer...

Due to decreases in the availability and quality of traditional water resources, harvested rainwater is increasingly used for potable and non-potable purposes. In this study, we examined the effect of conventional roofing materials (i.e., asphalt fiberglass shingle, Galvalume(®) metal, and concrete tile) and alternative roofing materials (i.e., cool and green) on the quality of harvested rainwa...