Evaluation of metals in water and sediments of micro-basins in the city of Americana, São Paulo state, Brazil

Water pollution found in major rivers in Brazil has its origin from urban sewage discharges and industrial effluent, carried out by small streams and rivers crossing cities. Therefore, studies related to hydrographic micro-basins offer the opportunity to establish environmental management strategies for restoring water resources, based on diagnosis of the water quality. Despite this understanding, few studies in urban and rural areas have been performed in a systematic manner in Brazilian micro-basins. The main goal of this research was to diagnose the water resources in micro-basins in the region of the district of Americana, São Paulo state, Brazil, through the quantification of metals in water and sediment. The methodology was based on the investigation of metals (Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn), in four micro-basins, determined by inductively coupled plasma optical emission spectrometry (ICP-OES). The most significant result showed high concentration levels of chromium (969 μg L-1), downstream of the discharge of sewage from the city of Nova Odessa. This concentration in the river was above the allowed limit of Brazilian regulation agency (50 μg L-1 for Cr). Also high levels of Cr were found in the sediment (98.9 μg g-1) collected at the same monitored site. These results are important indicators of environmental performance and anthropogenic activities to help the government establish environmental management strategies aimed at the reduction of water pollution. © 2013 WIT Press.

Activities report of the initiative group of the working group on environmental statistics

Includes bibliography

Aspectos físicos e sociais da geografia da disponibilidade hídrica municipal no Brasil

In managing water resources, indexes are used to simplify and quantify available information as well as report the characteristics of a region under study. These indexes may be extremely demanding concerning information required, or very simple, and the water poverty index and Falkenmark index are examples of both extreme situations, respectively. Searching for an index that considers regional and local complexities and information available in developing countries, a new index was developed to evaluate the population accessibility to water resources. This new index combines the Human Development Index and Falkenmark Index and geographic information systems. The results are presented in figures which show the situation at national level, highlighting that the Northeast and Southeast regions are the most vulnerable in Brazil.

O Banco Mundial e a política nacional de recursos hídricos no governo FHC (1995-2002)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Proposed activities of the CCST Secretariat for 1999

Summary Activities outlined under the Caribbean Council for Science and Technology (CCST); work programme fall under the headings: regional science and technology policy; renewable energy; science teaching; agro-processing; determination of priorities for science and technology for development; indicators on science and technology; follow-up to water resources meeting; CCST newsletter; competitiveness and industrial development programme; the five-year work programme 2000-2004; meeting of Ministers responsible for Science and Technology; and resource mobilization.

Capacitação de agentes multiplicadores para a semana da água 2005: concepções e práticas de educação ambiental

Pós-graduação em Educação - IBRC

Los recursos hídricos y la agricultura en el Istmo Centroamericano

Incluye Bibliografía

Ensaios de tratamento de efluentes de indústria de chapa dura de fibra de madeira

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudos para implantação de reservas legais: uma nova perspectiva na conservação dos recursos naturais

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Belize: effects of climate change on agriculture

Incluye Bibliografía

Geoecologia da paisagem na avaliação do uso dos recursos Hídricos da parte inicial da bacia do Ribeirão das Posses - SP

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Diferentes condições de estresse hídrico no desenvolvimento de milhos transgênico e convencional

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Recursos naturales: situación y tendencias para una agenda de desarrollo regional en América Latina y el Caribe. Contribución de la Comisión Económica para América Latina y el Caribe a la Comunidad de Estados Latinoamericanos y Caribeños

Incluye bibliografía.

Recursos naturais: situação e tendências para uma agenda de desenvolvimento regional na América Latina e no Caribe. Contribuição da Comissão Econômica para a América Latina e o Caribe à Comunidade de Estados Latino-Americanos e Caribenhos

Incluye bibliografía.

Planejamento ambiental e gestão de recursos hídricos na Bacia Hidrográfica da Represa de Chapéu D‟Uvas – Zona da Mata e Campo das Vertentes/MG

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)