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Dangerous asbestos dust pollutes the air around a worker in Zhangye.

Author: Michael Yamashita

Photo size: 12.3 Mpixels (35.1 MB uncompressed) - 4286x2860 pixels (14.3x9.5 in / 36.3x24.2 cm at 300 ppi)

Photo keywords: Marco Polo, China, Silk Road, harmful, labor, asbestosis, face mask, occupational, health and safety, worker, labor, Zhangye, challenge, danger