Impenetrable security systems at museums and galleries don’t stave off the sly attack of one culprit. Air-pollution damage to artworks may accumulate more stealthily than conservationists had thought. A new study could give art exhibitors incentive to step up protection against harm wrought by dirty air.
As a high school student in Pasadena, Calif., Leon M. Bellan began working with researchers at the California Institute of Technology in Pasadena to assess the visibility of dirt on art.
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