Скачать или смотреть Pollution is decaying the Taj Mahal. But where is it coming from?

One of the seven Wonders of the World, the Taj Mahal, is threatened by pollution. https://india.mongabay.com/2021/11/po...

Yamuna pollution was identified as a threat to the Taj five years ago, blaming the formation of phosphorous in the river water for the breeding of insects whose excreta was leaving patches on the marbles. For over three decades, sulphur dioxide from industries was also considered to be the main reason for the marble's decay.

Now, a new study offers a different perspective, identifying hydrogen sulphide emitted from the polluted Yamuna as more corrosive than sulphur dioxide.

While this study to identify the principal corrosion agent was conducted on exposed metals in Taj premises over four years, the authors recommended similar experimentation on marbles for a 10-year-period for a definitive understanding.

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