What happens when the concentration of Benzene in the air exceeds its LEL?

When the concentration of Benzene in the air exceeds its Lower Explosive Limit (LEL), the risk of explosion significantly increases. The LEL refers to the minimum concentration of a vapor in the air that can ignite and cause an explosion if an ignition source is present. When the concentration surpasses this threshold, the air-vapor mixture is capable of sustaining combustion, meaning that any spark or ignition source can trigger an explosive reaction.

This understanding is crucial for safety protocols in environments where Benzene or similar flammable substances are used or stored, as exceeding the LEL requires immediate attention to ventilation, monitoring, and hazard mitigation to prevent potential disasters.

The other options do not address the explosive risks associated with high concentrations of Benzene, focusing instead on different effects or properties of the substance. Thus, recognizing the implications of surpassing the LEL is vital for ensuring safe handling and storage practices in the context of flammable materials.