Hazards Of Cyanide In Mining

The use of cyanide in the mining process of metalsWorkers at gold mining operations can be exposed
such as gold and silver, leads to severe environmentalto cyanide during the heap leaching or tank extraction
risks. The use of cyanide in gold mining has led toprocess. Cyanide is very harmful to human being as it
environmental disasters in many countries across theacts as a poison to the human body. Severe
world such as the United States, Canada, China,breathing difficulties develop when cyanide is inhaled,
Guyana, Bolivia, Zimbabwe, Philippines and Ghana.swallowed or absorbed through the skin. Cyanide
Recently, Community groups and NGOs in Europe andblocks the absorption of oxygen by cells, making the
the United States issued a report which exposed thevictim to suffocate. Exposure to concentrated levels
danger of unregulated cyanide compound releasesof cyanide can be fatal to the human beings.
from mines around the world.Exposure to very low concentration of cyanide may
Cyanide is deadly for human beings as well as thecause cancer in people or animals.
environment. The main risks associated with the useWe are not certain about the presence and
of cyanide in mining process are exposure ofconcentration of numerous cyanide compounds in
workers to concentrated hydrogen cyanide gas,mining wastes. We are also not sure about the
leaking of cyanide into the environment and exposurepresence, persistence, and toxicity of cyanide and
of surrounding communities to cyanide due torelated compounds in the environment. But as the
accidental releases. During the mining process, theeffects of cyanide are getting more obvious, the
release of cyanide along with other toxic chemicalsopposition to cyanide leaching in gold mining is also
such as arsenic, lead, cadmium and mercury, leads toincreasing.
harmful effects and permanent damage to someThe use of cyanide in mining causes an unreasonable
species of animals, plants and human beings. It mayrisk to the health of people, wildlife, and fish. As the
also result in deforestation, soil erosion, land slides,hazards of cyanide in mining process are very much
and contamination of underground water.obvious, it is the responsibility of the Government
The release of arsenic and other poisonous chemicalsand mining companies to take essential steps. The
during the cyanide leaching process is very dangerous.International Cyanide Management Code provides
The cyanide-leach wastes of mining process have thedirection and guidance on how to manage cyanide to
potential to negatively impact municipal sewage andensure protection of workers, the environment and
water treatment procedures. It also potentiallythe communities adjacent to mining operations. Mining
increases the human intake of several toxicwaste should be regulated in the same manner as
substances. All the cyanide-containing water bodiesother chemical or industrial waste. The public needs
formed during gold mining milling operations areenough awareness about mining hazards. The
hazardous to wild animals and migratory birds suchgovernment should ban mining projects that result in
waterfowl and bats, if not managed properly. Evenenvironmental hazards in order to prevent ecological
accidental leaking of cyanide solutions into rivers anddisasters. Citizens must also oppose such mining
streams will kill fish and other aquatic animalsprojects. Many organizations in countries such as
massively. Especially, freshwater fish are the mostUnited States, Canada and Turkey have started
cyanide-sensitive aquatic organisms.associations for banning cyanide leaching in mining.