Which is not a recommended action to take in the event of a fire involving pesticides?

In the event of a fire involving pesticides, using water jets to extinguish the fire is not a recommended action. Pesticides can react dangerously with water, potentially causing the fire to spread or generating harmful run-off that can contaminate the environment. Water may also create a situation where flammable vapors or gases from the pesticide are released, which can exacerbate the fire or expose individuals to toxic substances.

Evacuating the area immediately is crucial for ensuring the safety of individuals near the fire, and using a fire extinguisher specifically rated for chemical fires is important for safely extinguishing the flames without further risk. Additionally, contacting emergency services right away ensures that trained professionals can respond to the situation appropriately. Therefore, avoiding water as an extinguishing agent is essential in managing a fire that involves pesticides safely.