A Worker Cleans Particles at the Taj Mahal (image) Georgia Institute of Technology Share Print E-Mail Caption A worker cleans a portion of the Taj Mahal complex. Marble on the right shows brownish discoloration caused by particles of carbon, and dust. Credit Credit: Mike Bergin Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.