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The natural world. Looking pretty for 3.5b years.

Acid Lakes

Acid Lakes

Author: Hugh Bollinger/Wednesday, November 14, 2018/Categories: natural history, space science, environment, adventure

                Blue Fire Crater with Fumarole, Kawah Ijen volcano, Java  (credit: Wiki-commons)

There's nothing more relaxing after a long hike than swimming in a mountain lake. It rejuvenates the body. However, some lakes are as toxic as battery acid. According to NASA, the Blue Fire Crater lake inside Kawah Ijen Volcano in Java: "has a pH of less than 0.3 on a scale of 0 to 14 with 7 being neutral. Lemon juice has a pH of 2 and battery acid has a pH of 1, by comparison".

A recent Landsat 8 photograph captures the turquoise blue of the acid lake that comes from chemicals dissolved in the water, including hydrochloric and sulfuric acids. Pure sulfur is mined at the crater's shore where steaming sulfuric vents (fumaroles) erupt from the active volcano.

Kawah Ijen volcano, Java  (credit: Landsat 8 )
Blue Fire Crater is definitely not a place for a relaxing skinny-dip or a swimming of any sort.



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