Which hazard is associated with the Skull and Crossbones pictogram?

The Skull and Crossbones pictogram is specifically associated with acute toxicity, indicating that the substance can cause severe health effects, potentially leading to fatality or toxic reactions. This pictogram is designed to convey a clear and immediate warning about the presence of substances that pose serious hazards if inhaled, ingested, or absorbed through the skin.

In the context of Hazard Communication, this pictogram plays a vital role in ensuring that employees and handlers are aware of the dangers posed by these toxic substances and can take appropriate precautions to protect themselves. It emphasizes the importance of recognizing and responding to hazardous materials in a workplace setting to prevent severe health outcomes.

While the other options relate to different types of hazards—such as environmental impacts, long-term health effects, or explosive substances—they do not specifically align with the meaning of the Skull and Crossbones pictogram, which focuses solely on acute toxicity.