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Mining Coal Ini Kalteng

Mining Coal Ini Kalteng

Dec 17 2015nbsp018332In South Kalimantan province a 2014 Greenpeace study of surface and wastewater samples collected in coalmining areas reported levels of iron and manganese in creeks and rivers that were consistently above Indonesias legal limit and noted that 7 of 29 samples had pH readings below 3 a level of acidity found in vinegar

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