What action should be taken when a hazardous smell is detected?

When a hazardous smell is detected, the most appropriate action is to keep people away from touching or breathing the substance. This is crucial because some hazardous materials can pose immediate health risks through inhalation or skin contact. By maintaining a safe distance, individuals can minimize their exposure to potentially harmful chemicals or gases, which could cause various health issues ranging from irritation to more severe reactions.

Additionally, while ventilating the area is important in some situations, it should be done with caution and typically after ensuring that everyone is safe and away from the source. Examining the source of the smell or ignoring it can lead to dangerous situations, such as uncontrolled exposure to hazardous materials. Keeping people safe should always be the top priority in these circumstances.