Another name for marble cancer
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Marble Cancer refers to the corrosion of buildings and statues made up of marbles by the action of sulfuric acid and nitric acid.SO2 and NO2 present in the air as pollution, get deposited in these buildings. These oxides absorb moisture from the air and convert it into respective oxides and cause corrosion. At the time of rain, the oxides of sulphur and nitrogen react with it and form acid rain. When such rain falls on monuments by dissolving the calcium present in it to make salt. Mable cancer causes disintegration and yellowing of building or statue. Taj Mahal is losing its white shine because of marble cancer.
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