Ключевые слова: active, asia, asian, caldera, close up, cloud, crater, detail, fumaroles, fume, gas, ijen, indonesia, indonesian, industry, javanese, kawah ijen, mine, mineral, mines, mining, mountain, natural, nature, nobody, outdoor, outside, pipe, smog, smoke, smoking, southeast asia, sulfur, sulphur, toxic, volcanic, volcanic gas, volcano, yellow,