خيارات البحث
النتائج 1 - 2 من 2
Groundwater Quality Protection : A Guide for Water Utilities, Municipal Authorities, and Environment Agencies | Protecao da qualidade da agua subterranea um guia para empresas de abastecimento de agua, orgaos municipais e agencias ambientais Proteccion de la calidad del agua subterranea : guia para empresas de agua, autoridades municipales y agencias ambientales النص الكامل
2002
Foster, Stephen | Hirata, Ricardo | Gomes, Daniel | D'Elia, Monica | Paris, Marta
This publication provides guidance to water-sector decision makers and planners on how to deal with the quality dimension of groundwater resources management in the World Bank's client countries. There is growing evidence of increasing pollution threats to groundwater and some well-documented cases of irreversible damage to important aquifers. This guide has been produced in the belief that groundwater pollution hazard assessment must become an essential part of environmental best practice for water supply utilities. The guide is particularly relevant for the World Bank's Latin American and Caribbean Region, where many countries have initiated major changes to modernize their institutional and legal framework for water resources management, but may not yet have considered groundwater at the same level as surface water, because of lack of awareness and knowledge of groundwater issues and policy options.
اظهر المزيد [+] اقل [-]Presencia de Legionella spp. en depósitos domiciliarios de agua potable en Resistencia, Chaco, Argentina. Informe preliminar النص الكامل
2016
Lösch, Liliana S. | Merino, Luis A.
Legionella spp. is an environmental bacterium that can survive in a wide range of physicochemical conditions and may colonize distribution systems of drinking water and storage tanks. Legionella pneumophila is the major waterborne pathogen that can cause 90% of Legionnaires’ disease cases. The aim of this study was to detect the presence of Legionella spp. in household drinking water tanks in the city of Resistencia, Chaco. The detection of Legionella in water samples was performed by culture methods as set out in ISO 11731:1998. Thirty two water samples were analyzed and Legionella spp. was recovered in 12 (37.5%) of them. The monitoring of this microorganism in drinking water is the first step towards addressing the control of its spread to susceptible hosts.
اظهر المزيد [+] اقل [-]