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Previous studies in the largest coal mining region of Brazil showed the strong influence of the coal-fired power plant in spatial distribution of As, especially in prevailing wind direction. However, it was not evaluated the risk of As on the local population. Thus, this study aims to assess the human health risk of As in a region under influence of atmospheric deposition of As from the coal-fired power plant. The human health risk assessment model was based on established by the U.S. Environmental Protection Agency (USEPA). It estimate the average daily dose (ADD), non-carcinogenic (HQ) and carcinogenic risk by in oral, dermal and inhalation exposure routes, as well as, the contribution of each via to ADD, HQ and carcinogenic risk to soil and air. Separately, both air and soil exposure pathways show HQ and HI below the risk threshold (

The canola constitutes an excellent option for cultivation in winter in Brazil, besides being an alternative for the production of biodiesel. The aim of this study was to evaluate the phenological characteristics of hybrid canola sown at different dates in Vicosa, MG. The experiment was conducted in the experimental area of Horta Velha, belonging to the Federal University of Vicosa (UFV). Seeds of four hybrids of canola: Hyola 432, 433, 401 and 61 were used. From 26 May, 2009 was held the first sowing date and the other every 15 days, a total of four sowing dates. Seedling emergence (%), duration of the vegetative phase (days), duration of flowering stage (days), number of days to the end of flowering, number of days from emergence to maturity (total cycle), bedding plants (%) and disease reaction (%) were evaluated. The experimental design was a randomized block in factorial arrangement with four replications. Data were subjected to analysis of variance and means were compared by Tukey test (p