scholarly journals A Framework for Ranking the Environmental Risk of Abandoned Mines in the State of Minas Gerais/Brazil

2021 ◽  
Vol 13 (24) ◽  
pp. 13874
Author(s):  
Patrícia Rocha Maciel Fernandes ◽  
Hernani Mota de Lima

Abandoned mines are a major mining liability for the state of Minas Gerais, Brazil. The impacts and risks of abandoned mines are specific to the location and type of ore, but they cover social, economic, and cultural aspects. A central element of an abandoned mine management policy is the definition of a methodology to identify and rank characteristics of abandoned mines that pose a risk to the environment and society. This article presents a methodology for the ranking of environmental risks for abandoned mines in the state of Minas Gerais based on different evaluation factors of their external effects on the environment, safety, the population and surrounding areas, heritage and the landscape. The environmental risk of the abandoned mine area was generated to establish the “Abandoned Mine Area Environmental Risk Hierarchy”. To achieve this a multi-criteria analysis (using the Analytical Hierarchy Process (AHP)) was adopted with each preponderant factor being compared and measured. The results show that the use this framework can support in the decision-making process of an environmental agency for developing the intervention aimed at situations of greater gravity, which, ultimately, may require the use of public resources to reduce risks.

Zootaxa ◽  
2017 ◽  
Vol 4291 (3) ◽  
pp. 563
Author(s):  
MAÍSA DE CARVALHO GONÇALVES ◽  
MARCOS CARNEIRO NOVAES ◽  
FREDERICO FALCÃO SALLES

Specimens of Gripopterygidae (Plecoptera) from Espírito Santo State and surrounding areas in the state of Minas Gerais, southeastern Brazil, were studied. A new species, Gripopteryx caparao n. sp. is described. The female of Paragripopteryx intervalensis Bispo & Lecci 2011 is described and recorded for a new site. Comments on G. garbei Navás 1936 are presented. New state records are provided for G. cancellata (Pictet 1841), G. reticulata (Brauer 1866), G. juetah Froehlich 1990, G. pilosa Froehlich 1990, P. egena Froehlich 1994, P. intervalensis Bispo & Lecci 2011, P. klapaleki Enderlein 1909, and Tupiperla gracilis (Burmeister 1839). 


Author(s):  
Laís de Sousa Abreu Soares ◽  
Filipe Mendes Dalboni ◽  
Evandro Camargos Teixeira
Keyword(s):  

2016 ◽  
Vol 210 (1-2) ◽  
pp. 50-54 ◽  
Author(s):  
Diego H. Macedo ◽  
Armando Menezes-Neto ◽  
Jeronimo M. Rugani ◽  
Ana C. Rocha ◽  
Soraia O. Silva ◽  
...  

1992 ◽  
Vol 37 (sup2) ◽  
pp. 13-13
Author(s):  
Alexandre Soares Leal ◽  
Allan Sostenis Hanke
Keyword(s):  

2011 ◽  
Vol 7 (1) ◽  
pp. 68 ◽  
Author(s):  
Alessandro S Guimarães ◽  
Filipe B Carmo ◽  
Marcos B Heinemann ◽  
Ricardo WD Portela ◽  
Roberto Meyer ◽  
...  

Oryx ◽  
2014 ◽  
Vol 49 (1) ◽  
pp. 60-63 ◽  
Author(s):  
Guilherme Braga Ferreira ◽  
Marcelo Juliano Rabelo Oliveira ◽  
Rogério Cunha de Paula ◽  
Flávio Henrique Guimarães Rodrigues ◽  
Érica Daniele Cunha Carmo

AbstractThe bush dog Speothos venaticus, a rare Near Threatened South American canid that lives in packs, was thought to be extinct in Minas Gerais state, south-eastern Brazil, until recently. Here, we report four recent records of the species in Minas Gerais, the first in the state since the description of the species in 1842. All records are from the Cerrado ecosystem in the north and north-west of the state; two are from animals found dead, one from footprints and another from a camera trap. Three of the records were inside or close (< 10 km) to strict protected areas, in a region recognized as the Protected Areas Mosaic Sertão Veredas–Peruaçu, where we expect any new records of the bush dog to be found. We discuss the low probability of detecting the bush dog and the main regional threats to the species, and emphasize the need to protect large and interconnected natural areas and keep them free of domestic dogs to avoid the extinction of the bush dog in Minas Gerais.


2021 ◽  
Author(s):  
Gaetana Ganci ◽  
Annalisa Cappello ◽  
Giuseppe Bilotta ◽  
Giuseppe Pollicino ◽  
Luigi Lodato

&lt;p&gt;The application of remote sensing for monitoring, detecting and analysing the spatial and extents and temporal changes of waste dumping sites and landfills could become a cost-effective and powerful solution. Multi-spectral satellite images, especially in the thermal infrared, can be exploited to characterize the state of activity of a landfill.&amp;#160; Indeed, waste disposal sites, during the period of activity, can show differences in surface temperature (LST, Land Surface Temperature), state of vegetation (estimated through NDVI, Normalized Difference Vegetation Index) or soil moisture (estimated through NDWI, Normalized Difference Water Index) compared to neighboring areas. Landfills with organic waste typically show higher temperatures than surrounding areas due to exothermic decomposition activities. In fact, the biogas, in the absence or in case of inefficiency of the conveying plants, rises through the layers of organic matter and earth (landfill body) until it reaches the surface at a temperature of over 40 &amp;#176; C. Moreover, in some cases, leachate contamination of the aquifers can be identified by analyzing the soil moisture, through the estimate of the NDWI, and the state of suffering of the vegetation surrounding the site, through the estimate of the NDVI. This latter can also be an indicator of soil contamination due to the presence of toxic and potentially dangerous waste when buried or present nearby. To take into account these facts, we combine the LST, NDVI and NDWI indices of the dump site and surrounding areas in order to characterize waste disposal sites. Preliminary results show how this approach can bring out the area and level of activity of known landfill sites. This could prove particularly useful for the definition of intervention priorities in landfill remediation works.&lt;/p&gt;


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