Environmental Hazard Warning Sign

Here's a widely recognized warning sign, presented as a black pictogram on a bright yellow triangle with a bold black border. The imagery, depicting a withered tree and a dead fish, clearly conveys a message of environmental danger. It specifically warns about substances or situations that could cause significant harm to natural ecosystems, affecting both plant and aquatic life.

warning sign - environmental hazard - pollution - ecological damage - danger - safety - dead fish - dead tree - ecosystem