23. What is marble cancer? Describe it by giving some suggestions to prevent it ?
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What is marble cancer ?
By GK Planet Team Friday, 23 February 2018
Marble Cancer
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.
1.After a report saying pollution is turning the Taj Mahal yellow, authorities have taken a number of steps to cut emissions in the area.
2. Vehicles have been banned within a half-mile radius. The report said the white marble structure is gradually turning yellow from pollution from gas powered vehicles.
3. Authorities have also set up pollution monitoring stations around the Taj Mahal.
4. The Taj Mahal is considered one of the seven wonders of the world. It was built by a mongol emperor as a mausoleum for his wife. It was completed in 1648 after 17 years of labor by 20,000 workers.
By GK Planet Team Friday, 23 February 2018
Marble Cancer
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.
1.After a report saying pollution is turning the Taj Mahal yellow, authorities have taken a number of steps to cut emissions in the area.
2. Vehicles have been banned within a half-mile radius. The report said the white marble structure is gradually turning yellow from pollution from gas powered vehicles.
3. Authorities have also set up pollution monitoring stations around the Taj Mahal.
4. The Taj Mahal is considered one of the seven wonders of the world. It was built by a mongol emperor as a mausoleum for his wife. It was completed in 1648 after 17 years of labor by 20,000 workers.
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