cliparts/e/5/7/7/clipart-danger-for-environment-e577.svg image/svg+xml Open Clip Art Library danger for environment 2008-01-09T20:03:12 http://openclipart.org/detail/10904/danger-for-environment-by-yves_guillou-10904 yves_guillou clip art clipart danger danger hazard hazard image media png public domain risk risk sign sign svg