More Smooth Volcanic Ash, More Danger

                  Volcanic ash by the eruption of Mount Merapi in Yogyakarta and surrounding areas plied increasingly thickened. This is clearly a serious threat to residents who live there. According to the World Health Organization (WHO), exposure to volcanic ash is very harmful to people who mengirupnya. The threat is the most common respiratory disorders. Based on the WHO exposure during the eruption of Mount Eyjafjallajökull in Iceland ago, volcanic ash particles are generally composed of fine rock fragments, minerals, and glass with strong character, abrasive,...

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