[Analysis of the social and health impacts of large hydroelectric plants: lessons for a sustainable energy management].

The main objective of this study was to analyze the social and health impacts resulting from the construction of the Tucuruí (Pará, Brazil) and James Bay (Quebec, Canada) Hydroelectric Plants. The comparative method study used in analysis of the literature review revealed lessons to be learned from the national and international experience in order to ensure sustainable management of future major energy projects in Brazil. In this study, a successive negative domino effect was observed in terms of social impacts on jobs, income, sanitation, and culture, all with associated health problems.

Thermal comfort and personal protective equipment (PPE).

Personal Protective Equipment (PPE) is considered the last preferred solution to an Occupational Safety Health (OSH) system. Brazilian OSH legislation assumes and requires PPE usage to neutralize the possibility of pesticide contamination. This study examines the inadequacy of the PPE used in a tomato crop, particularly from the standpoint of thermal comfort.

Efficiency of personal protective equipment used in agriculture.

Despite the practical importance of Personal Protective Equipment (PPE), both in production and in consumption, it is observed a main problem regarding the quality of many PPE�s used in Brazil. This study found a gap between the state of the art and the state of prevailing practices in the design of PPE�s, which main consequences affect the health of workers who use PPE in agriculture activities. The results of this study identified legal constraints of this occurrence, involving the validation of PPE designed for isolate agents, without the analysis of relevant activities and without prototypes experiments in more frequent use situation.

[Pesticides: economic efficiency and social and environmental injustice].

This study analyzed the inverse relationship between economic efficiency and social and environmental justice in the use of pesticides. The use of pesticides tends to improve economic efficiency by increasing agricultural productivity, however, it can also increase social and environmental injustice. This inverse relationship was inferred since the economic efficiency gained with the use of pesticides is [usually] associated with some kind of social and environmental injustice.

[Pesticide pollution in water systems in a small rural community in Southeast Brazil].

Recent advances in analytical techniques allow identifying pesticide pollution in water systems. In small rural communities, the negative effects of pesticide pollution can be aggravated by the lack of infrastructure and adverse socioeconomic conditions. This study investigated pesticide pollution in potential water supply sources in a tomato growing area in Paty do Alferes, Rio de Janeiro State, Brazil.

Hospital waste operational procedures: a case study in Brazil.

This study analysed the hospital waste management practices and their implications to public health in the city of Belo Horizonte, south eastern Brazil. Belo Horizonte is a regional capital city located 300 miles from the famous city of Rio de Janeiro, Brazil. It is only 100 years old and is the first city planned in Brazil.