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Maria (2009-2014). Trabalha nas áreas de contaminação de solo, resíduos sólidos, águas subterrâneas e recursos hídricos.

Dentre as principais fontes de contaminação dos recursos hídricos tanto superficiais quando subterrâneos, o escoamento superficial destaca-se principalmente no carreamento de substancias contaminantes, acarretando em alterações prejudiciais na qualidade da água. O presente trabalho tem como objetivo a determinação das características físicas e químicas da água oriunda do escoamento superficial da bacia hidrográfica do Rio Vacacaí-Mirim. Para a realização do presente estudo foi utilizado o método o método "Cornell Sprinkle Infiltrometer", que promove uma chuva simulada, com três coletas da água proveniente do escoamento superficial, aos 3, 30 e 60 minutos. Após a coleta, foram realizadas testes em laboratório para

The application of pig slurry as a fertilizer can cause soil and water contamination. Intrinsic characteristics of the environment may enhance this effect and influence the vulnerability of the agricultural system. The goal of this study was to evaluate the accumulation of soil P fractions in areas treated with pig slurry and in forest areas and to propose an evaluation of the areas' vulnerability to P contamination. Soil samples were collected from 10 areas with pig slurry applied to the soil and one in forest without a history of pig slurry application, all located in the Coruja and Bonito rivers microbasin at Braço do Norte, Santa Catarina, southern Brazil. Samples were prepared and subjected to P chemical fractionation. Two versions of the P index method, based on soil P forms or only on P extracted by Mehlich-1, were used to evaluate the environmental risk of the studied areas. Estimated soil losses were lower for the forest and natural pasture and highest in areas with black oat ( Schreb.)-corn ( L.) crop cultivation. Concentrations of P fractions, especially of organic and inorganic P extracted by 0.1 and 0.5 mol L NaOH and NaHCO and of inorganic P extracted by anion exchange resin and HCl, were higher in areas with a longer history and higher frequency of pig slurry applications. Vulnerability to P contamination was mainly influenced by soil P concentrations and soil losses in the studied areas. The P index based on Hedley's fractionation P forms resulted in a more accurate risk scoring of the studied areas than the P index based on the concentration of available P extracted by Mehlich-1.

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The environmental management of agroecosystems is a challenge in the context of family farming. While most studies has focused on production processes, there is a gap in relation to methods and tools to assist farmers in the agroecosystem management. This study aimed to propose an environmental management guide for family agroecosystems based on the MESMIS framework. Initially, we presented the links between the MESMIS framework and requirements of Environmental Management Systems (EMS) according to a methodology known as PDCA (Plan, Do, Check and Act). The MESMIS framework was applied on five agroecosystems, under a management point of view. As a result, it was possible to associate to the MESMIS framework stages some EMS activities and, then, to compose the environmental management guide. The work was contextualize in the episteme of the Network for Knowledge Building on Agroecosystems Sustainability Assessment (CONSAGRO Network) and its actions with the farmers of Southern Brazil, whose activities are developed supported on the principles ofAgroecology.

A preservação da qualidade ambiental, apesar de ser um princípio de reconhecimento universal, a agressão ao ambiente é uma realidade que provoca danos de difícil reparação ao próprio e à saúde humana. Na Declaração do Rio, fruto da Conferência Rio-92, apresenta-se a proposta de utilização do Princípio da Precaução - que é aplicado em muitos estudos atuais, - como instrumento antecipatório da prevenção na avaliação do impacto ambiental. Este artigo discorre sobre o uso do Princípio da Precaução para os estudos de impacto à saúde, na incerteza da licitude da atividade desenvolvida, e da necessária dose, tempo de exposição, da causa única ou da multicausalidade das doenças que podem ocorrer devido à alteração ambiental.

No abstract