Police authorities had validated suspicions that some small-scale miners were using industrial-grade cyanide, which may have been illegally acquired, in the processing of gold ore they mine from mining areas in Zamboanga del Sur.
Senior Supt. Edgar Danao, chief of the police’s Criminal Investigation and Detection Group (CIDG) in Western Mindanao, said on Oct. 10, they stumbled on a large stock of cyanide, nearly 500 kilograms, during a raid on a structure owned by Julieto Monding.....................
There are many different types of cyanides, including those that some bacteria produce and those normally occurring in plants in minute levels.
But the toxic kind, being used in industries and mining, is a highly-regulated substance in the Philippines.
Medical journals said that ingestion of a small quantity of solid cyanide or a cyanide solution as little as 200 milligrams, or inhalation of just 270 parts per million of hydrogen cyanide is sufficient to cause death within minutes.
http://newsinfo.inquirer.net/290040/small-scale-miners-in-zamboanga-del-sur-use-illegally-acquired-cyanide-police
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