The objective of this research was to map and evaluate nitrate contamination in an urban area on the Brazil / Bolivia border. The evaluation of the groundwater table occurred in the water of cacimbas wells or Amazonian wells with an average depth of 10 meters in the city of Nova Mamoré, in the State of Rondônia, located in the southern region of Western Amazonia bordering the Republic of Bolivia. METHODS: Eighty (80) water samples were collected in the city's urban center, defined and evaluated for nitrate (NO3 -) in a proportion above or below the values defined by Ministry of Health Ordinance No. 2.914/2011, which governs standards of water standardization and potability in Brazil. From the data obtained, maps with georeferenced information were made to locate the areas with the highest and lowest contamination potential. The use of geostatistics assisted in the accomplishment of the spatialization of the samples and in the analysis of the spatial patterns allowing a higher quality of the generated data. Results: Sixty-two and a half percent

The struggle for a fair distribution of land consolidated social movements and put pressure on the Brazilian government to carry out agrarian reform. The government allocated rural workers to the settlements and created programs to strengthen family farming. The global concern with the sustainability of the planet has led scholars to think that family farming is an alternative for the reduction of poverty and for the preservation of the environment. Based on this principle, the objective of this study was to analyze whether family farming used in the family units of the Joana Darc III settlement in Rondônia contributes to sustainable development. Materials and methods: The research is characterized as descriptive and a case study. We use an instrument developed by Anjos17, semi-structured, divided into 6 blocks: Identification of the profile of farmers; Characterization of the production unit; Characterization of crop production; Production commercialization; Financing and infrastructure and, Life conditions. The sample granted for accessibility was a group formed by 30 (26.3%) rural farmers from the Joana Darc III settlement who cultivate different crops, harvested from a population of 114 farmers. For the sample size, the systematic sampling formula presented by Barbetta26 was used. The research project considers the ethical aspect and is in accordance with CNS Resolution 196/96. Results: The results showed that the settlers received financing from Pronaf for investments in increasing production and technical assistance from EMATER. However, the production system adopted is traditional, with the use of pesticides in crops and the use of pesticides in animals and they practice burning to clean the land. This practice goes against the principles of clean agriculture, which aims to preserve the environment. It was also found that the settled farmers sell their products below the market price, reducing their profit margin. However, all were unanimous in ensuring that they would have better living conditions compared to the life before the settlement and believe in improvements in the future. Conclusions: It was rejected the hypothesis that family farming used in the family units of the Joana Darc III settlement in Rondônia contributes to sustainable development.

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Objective: to analyze the socio-environmental responsibility of commercial companies in the wholesale, retail, wholesale-retail and wholesale-retail sectors within the scope of the free trade area of Guajará-Mirim, Rondônia, Brazil / Bolivia border. Method: the Social and Environmental Responsibility Performance Index -IDRSA was calculated according to the Factor Analysis techniques presented by Hair et al 13, Santana 14,15 and Cavalcante 16. A questionnaire (created by Cavalcante and Siqueira 17) was applied to 32 companies in the ALCGM economic sector, based on a set of social, environmental, economic and free question variables. Results:The average of the results found for each of the analyzed parameters (social, environmental and economic) reaches the performance index of socio-environmental responsibility of the companies for each of the economic sectors surveyed in the free trade area of Guajará-Mirim. The wholesale-retail sector had the best performance among all sectors with an index (IDRSA 0.561), considered "regular" performance. The sector of retail and wholesale (IDRSA 0.470) and the retail sector (IDRSA 0.420) also display rankings with regular performance indexes. The wholesale sector (IDRSA 0.374) was classified as "bad".

Objective: describe the monitoring of the mortality of wild animals on a state road located in the municipality of Cacaulândia, state of Rondônia, Western Amazon, caused by the hit of vehicles. Method: the methodological procedure follows that recommended in the manual of the Brazilian Center for Road Ecology Studies CBEE). Result: in the 19-month study period, the identification of animals run over and killed by vehicles reaches 2.57 animals per day, corresponding to an average of 77.1 animals per month and totaling 1,464.9 animals. This value corresponds to 0.073 animals killed per km traveled. The most victimized animal class was that of reptiles with a relative frequency of 51%, followed by mammals with 26.5%, birds with 14.3% and amphibians with 8.2%. Conclusions: peak deaths of wild animals occur on rainy days in the Amazon region. However, in the warm season and in the period of forest fires in the region, wildlife mortality rates remain quite high. What is expected is that this study will serve as an elementary basis so that managers of public policies of the infrastructure service in which the road component of the state of Rondônia is a part can adopt mitigating measures consecrated with the effectiveness in reducing / mitigating impacts in different biological groups, in the specific case of wildlife mortality.