|navigate by keyword : accident active air background black chemical contaminate contamination core danger dangerous death disaster electric electricity emergency energy environment fall fallout fusion gamma hazard hazardous japan label light materials melt meltdown nuclear out placard plant plutonium power protect protection radiation radio radioactive rail ray rays reactor risk road salvage science sea sign substances symbol symbols transport uranium vector waste white yellow
|Safety placard - warning sign for radioactive substances (class 7) and materials. One of the official signs for transport.
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