The urbanization process through which large urban centers have been passing has drastically affected the availability and especially the quality of water. The Cachoeirinha Invernada Watershed (CIW), located in the municipality of Guarulhos (State of São Paulo, Brazil), includes areas with different land use classes. This paper aims to correlate the spatial and temporal effects of land use and land cover on the water quality of the Cachoeirinha Invernada Watershed. In a period of 12 months and at six sampling points along the watershed, the physicochemical parameters temperature (T), pH, turbidity (TU), total solids (TS), electrical conductivity (EC), total phosphorus (TP), biochemical oxygen demand (BOD), as well as microbiological analysis (E. coli) were measured. Water quality was assessed using a modified version (WQIM) of the Water Quality Index (WQI) and the Trophic State Index (TSI). The areas surrounded by urban development presented a marked worsening in water quality, with the downstream point most affected and ranked as 'POOR'. From the evaluated parameters, what contributed most to water quality degradation of the Cachoeirinha Invernada Watershed (CIW) was E. coli, followed by BOD, and TP, all parameters related to the presence of sewage in the water. The need for the construction of sewerage and waste treatment, protection and recovery of riparian forests, and environmental education regarding waste disposal are necessary to significantly improve the environmental quality of the Cachoeirinha Invernada Watershed. correlacionar os efeitos espaciais e temporais do uso da terra e da cobertura do solo na qualidade da água dessa bacia hidrográfica.. Foram analisados, em um período de 12 meses e em seis pontos de amostragem na área da bacia hidrográfica, parâmetros físico-químicos como a temperatura (T), pH, turbidez (TU), sólidos totais (ST), condutividade elétrica (CE), fósforo total (FT), demanda bioquímica de oxigênio (DBO), bem como análise microbiológica (E. coli). A qualidade da água foi avaliada usando uma versão modificada (WQIM) do Índice de Qualidade da Água (IQA) e do Índice do Estado Trófico (IET). As áreas cercadas pelo desenvolvimento urbano apresentaram um acentuado agravamento na qualidade da água, com o ponto a jusante mais afetado e classificado como 'POBRE'. A partir dos parâmetros avaliados, o que mais contribuiu para a degradação da qualidade da água da BHCI foi E. coli, seguido de DBO e FT, parâmetros esses relacionados à presença de esgoto na água. A necessidade de construção de esgoto e tratamento de resíduos, proteção e recuperação de matas ciliares e educação ambiental com foco na eliminação de resíduos são necessárias para melhorar significativamente a qualidade ambiental da bacia hidrográfica Cachoeirinha Invernada.Palavras-chave: degradação ambiental, eutrofização, águas urbanas, poluição da água.

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<p>Among the functions of a university there are Teaching, Research and Extension. In order to collaborate in the extension of actions within the week of Conscious Consumption, 2016, Master in Geoenvironmental Analysis at the UNG Universidade suggested the questionnaire on the Ecological Footprint, an instrument that was developed and widely publicized by the WWF-Brazil (World Wide Fund for Nature - Brazil). The shares were held in the three campuses in the University: Center, Dutra and Itaquaquecetuba, covering about 1,000 students. Students answered the questionnaire with 18 questions and after the addition of the points, these might be classified according to the amount of renewable natural resources to maintain their standard of living and how many planets would be needed to keep this consumption if all people on the planet I had the same level of consumption. With the result of the application of this questionnaire, we can see that the students of the UNG Universidade need, on average, 2.8 planets to maintain its consumption of life, higher than the national average which is 1.6 and very close to average the UK is 3.0. When it comes to Conscious Consumption it is important each person doing the exercise to quantify and reflect on their lifestyle. Thus, this extension activity fulfilled its objectives, since the discussion on consumption was noticeable by observing the students talking and checking how are consumerist and Consumer Awareness is not limited to “shopping” but also housing, food, waste and transportation.</p>

The water resources managing unit 11 (UGRHI-11), Ribeira de Iguape river Drainage Basin and São Paulo State Southern Coast, presents advances in the management of solid waste, but there are still municipalities deprived of adequate landfills. The objectives of this work are: to indicate possible suitable areas for construction of landfills for municipal solid waste, according to technical and environmental norms, that can be used by more than one municipality, according to Law 12300, which encourages cooperation among municipalities in order to solve problems of solid waste disposal, and to upgrade the knowledge about the actual conditions of final waste destination in UGRHI-11. A field survey of sites of final waste disposal revealed that the conditions of several of them were worse than those reported by the LQI (Landfill Quality Index) of CETESB. The IDRISI Andes system modules (version 15.01), Weighted Linear Combination (WLC) and Ordered Weighted Average (OWA), were used in multi-criteria GIS analysis. Initially, the WLC was used to combine slope, geology, soils, vegetation cover, environmental protection areas, road network, river system and urban areas maps, resulting in a combined suitability map. In a second moment, the OWA was applied to restrict the search, with a more complex ordering of weights. After OWA, using the Network Analyst extension of the ArcGIS system, a logistical study was carried out to classify the suitable areas, considering the distance of waste sources, roads and size, aiming at finding sites usable by more than one municipality. According to NBR 13896 (June 1997), the life span of a sanitary landfill must be at least 10 years. The possible sites were classified according to the size of landfills that could be built in, also considering the possibility of population growth until 2020. Suitable areas for sanitary landfills were located at all municipalities considering individual needs. Then the search area and the size of acceptable areas were increased, locating sites that may attend to more than one municipality, ranked by size and distances to urban areas. The GIS techniques employed were considered adequate. for solid waste management studies, allowing to take into account different factors and saving costs by discarding in early stages unsuitable areas, and to rank sites by suitability to larger landfills. Finding suitable areas for collective landfills can support political negotiations to an efficient management of municipal solid waste.