A new study has identified the pollutants that are causing the marble of India’s iconic Taj Mahal to turn yellow. The discoloration of the white marble has long been a concern, but the latest study could help in drawing up more targeted measures to protect the 360-year-old famed monument of love.
Researchers Study Pollutants Turning Taj Mahal Yellow

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This close-up image shows the contrast between cleaned and discolored marble in the Taj Mahal complex. New research shows that the brownish discoloration is caused by particles of carbon, and dust.