Monday, August 6, 2012

The use of mercury in gold mining stirs controversy in the Brazil

Gold mine in the continuation of the State allowed the use of mercury scientists in Brazil, have fun, they say new regulations state of Amazonas State of many eco-friendly choices expressed the concern.


Using the money from other mineral bound mercury, mercury from burning mercury extraction merger process, primarily the small 'artisan' mining.


In developed countries is steadily increase increase in gold prices in recent years between Africa and Latin America.


But there are irreversible effects, strong toxic mercury man. Symptoms of mental problems, loss of memory, gingival inflammation, kidney problems, muscle tremors and death even.


The first mercury mining 2005 use the Amazonas State Government claim in the mercury currently artisan miners for the only affordable option.


But are assumed releases new regulations to tighten use by the State of Amazonas Environmental Council mid June Daniel Nava, Amazonas Secretary mines and geological diversity and water resources, said.


He said "free to use it, mercury regulation of mining activity and look at is not".


According to the authors, includes the steps to mitigate the effects of the use of mercury to new regulations. For example, you use simple equipment such as crucibles, retort reduce the emission of mercury into the atmosphere. Is required in the regulation of good environmental practices course all miners.


To release the Brazil scientists say mercury mining environment can continue, "a giant step backwards", according to OLAF Malm, who in mercury pollution, is the Rio de Janeiro Federal University study.


MALM SciDev.Net told him to avoid appropriate mercury disposal, worldview prevalent release i.e., environment for it.


Says that cyanide, a poison many scientists support the alternatives such as using.


"Cyanidation, the extraction of gold from low-grade ores metallurgy technology, as well as industrial processes and operational risks to humans and the environment very detrimental to a must. However, take measures to manage and mitigate these risks should the user responsible for the "said Giorgio de Tomi, Sao Paulo University of mining and technology researchers.


In particular, he added that "a simple post-reform sum cyanide for industry, widely used and well known, and eliminates the risk of operational processes"


-De Tomi SciDev.Net is said to help in this process and change the body miners working in the Amazon region for the public use, all large enterprises, non-governmental organizations, University, and other mercury-free way.


"My opinion is, no results of this mine a careless attitude. The mercury process know they work only one. Go to mercury-free technology to support them, "-said de Tomi.

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