Related by context. Frequent words. (Click for all words.) 55 Zijin 49 zinc smelting 47 tailings dam 45 Sulfuric acid 44 bauxite ore 44 sulfuric acid 44 Tailings 44 Semirara 43 manganese 43 Maoling 43 tailings 43 Palabora 43 polluting groundwater 43 Newmont 43 Barapukuria 43 Leaching 42 smelting 42 Morococha 42 sulfuric 42 Kolwezi 42 tailings dams 42 electrowinning 42 Kingking 41 Sumbawa 41 Lapindo Brantas 41 mining 41 ferromanganese 41 Rapu Rapu 41 Sulphate 41 Batu Hijau mine 41 smelter 41 PT Inco 41 Masbate Gold 41 Porgera 41 Sulfur dioxide 41 Hexavalent chromium 40 alluvial diamonds 40 tailings disposal 40 Walhi 40 ammonia nitrogen 40 Elandsrand 40 Hydrochloric acid 40 liquid ammonia 40 borate 39 aromatic hydrocarbons 39 Bromine 39 Caustic Soda 39 Piedras Verdes 39 Sinazongwe 39 Lapindo 39 mine tailings 39 potassium sulphate 39 Chambishi 39 red sludge 39 hydrofluoric acid 39 alluvial mining 39 nitric acid 39 Grasberg mine 39 Buzwagi 39 Rostekhnadzor 38 fracking fluid 38 Raspadskaya 38 Unimin 38 acid leach 38 Phenol 38 Chromite 38 Pacific Adventurer 38 sulfur dioxide 38 feldspar 38 ammonia nitrate 38 Kansanshi 38 Bojonegoro 38 methylene chloride 38 Tricastin 38 Beijing AsiaNews Agencies 38 Ammonium 38 spillage 37 copper cathodes 37 molten aluminum 37 benzene toluene 37 hydrochloric acid 37 Kuan Yin Taiwan 37 Munali 37 Sidoarjo 37 tailing ponds 37 spillages 37 Phulbari 37 Sayano Shushenskaya plant 37 Konkola Copper Mines 37 copper 37 Wouterspan 37 opencast mine 37 tailings impoundment 37 toxic sludge 37 Adaro 37 hydroxide 37 corrosive liquid 37 Didipio 37 Vaal River 37 Filipino crewmen 37 caustic soda