environmental_hazard_symbol
A pictogram indicating certain chemicals that are hazardous to the environment, toxic to aquatic life, or being persistent organic pollutant. It consists of a bare tree and dead fish.
Other hazard symbols
* biohazard symbol* corrosive symbol
* flammable symbol
* laser symbol
* lightning bolt symbol
* non-ionizing radiation symbol
* radiation symbol
* skull and crossbones (acute toxicity)
* warning sign (harmful/irritant)