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Vatican Unveils High-tech Antidote for Sistine Chapel Pollution
November 2, 2014

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Two years after complaining about the high number of tourists at the famed Sistine Chapel, the Vatican has employed modern technology to combat degradation of the chapel's frescoes brought on by air pollution.

Some of the most famous frescos in the world are inside Vatican City's famed Sistine Chapel, including the famous Ceiling painted by Michelangelo.

The chapel's walls are not exactly airtight, and a combination of carbon dioxide and large amounts of tourist traffic have created condensation in the very walls. As a result, the Vatican has installed a very, very modern ventilation system, which monitors the feeds from three cameras that estimate the number of people in the chapel at any one time and then adjusts the temperature and humidity accordingly. The ideal temperature range is between 20 degrees Celsius and 25 degrees Celsius, and the ideal humidity range is between 50 percent and 60 percent.

Vatican officials are hopeful that visitor numbers will continue to be about nearly six million a year.

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