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Back view portrait of worker wearing hardhat checking pressure systems while working at modern plant, copy space
Globally Harmonized System of Classification and Labeling of Chemicals or GHS Combustion
Erlenmeyer flask with Violet liquid and chemical hazard warning symbols labels (serious health hazard sign) on white background.
Barricades and a danger sign warn people to keep away on the Asbury Park boardwalk. Photo taken on April 9, 2013 - just over six months after Hurricane Sandy hit New Jersey.
Yellow hazard warning sign with a falling person in the driving gear
Radioactive halftone raster pictogram. Illustration style is dotted iconic Radioactive icon symbol on a white background. Halftone pattern is circle items.

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