Hazardous Materials Emergency Response Flashcards

A building occupant reports an unknown chemical spill with a strong odor on the 7th floor, and several people feel nauseous. What is the Fire and Life Safety Director's IMMEDIATE response?

Answer: Call 911 to report a possible hazardous materials incident, begin evacuation of the affected floor, and prevent others from entering the area

A chemical spill with symptoms (nausea, strong odor) is a potential hazmat emergency requiring immediate 911 notification. Evacuating the affected floor and isolating the area prevents additional exposure. Increasing HVAC flow can spread contaminated air to other floors; sending an unprotected warden into an unknown chemical environment is dangerous.

During a hazardous materials incident on an upper floor, the FDNY HAZMAT unit advises that the chemical poses an outdoor air risk. What occupant protection strategy should the FLSD implement?

Answer: Shelter-in-place: direct occupants to move to interior spaces, seal gaps under doors, and shut down HVAC systems drawing outside air

When the hazard is outside the building (or when outdoor air is compromised), shelter-in-place is safer than evacuation. Occupants move to interior rooms, gaps are sealed, and outside-air HVAC intake is shut off to prevent contaminated air from entering. The FLSD implements this strategy at FDNY's direction.

What is a Safety Data Sheet (SDS), and why is it relevant to the Fire and Life Safety Director?

Answer: A document that identifies hazardous chemicals stored in the building, their properties, health risks, and emergency response procedures

Safety Data Sheets (formerly MSDS) are required for all hazardous chemicals and provide critical information including the chemical's identity, health and fire hazards, exposure limits, and emergency response procedures. The FLSD should know what hazardous materials are in the building and where SDS documents are kept so responders can access them during an incident.

A gas line is suspected to be leaking in the building's basement. Which action should the Fire and Life Safety Director take FIRST?

Answer: Call 911 and Con Edison (the utility), evacuate areas near the suspected leak, and prohibit use of electrical switches or open flames

A suspected gas leak requires immediate 911 and utility notification, evacuation of the area, and elimination of all ignition sources — including electrical switches, which can spark. Entering the basement to manually shut valves exposes the FLSD to explosion risk; activating fans could spread gas or create ignition through motor sparks.

After a hazardous materials incident is resolved by FDNY HAZMAT, what must the Fire and Life Safety Director do before allowing occupants to re-enter the affected area?

Answer: Obtain explicit clearance from FDNY HAZMAT or other authority having jurisdiction before authorizing re-entry

Re-entry after a hazmat incident must be authorized by the authority having jurisdiction — FDNY HAZMAT or the relevant agency. Residual contamination may not be visible or detectable without instruments. The FLSD cannot self-declare an area safe; doing so before official clearance creates serious liability and endangers occupants.

Which of the following is the Fire and Life Safety Director's best preventive measure regarding hazardous materials in the building?

Answer: Conduct periodic surveys of tenant spaces to verify that hazardous materials are properly labeled, stored, and that SDS documents are accessible

The FLSD's preventive role includes knowing what hazardous materials exist in the building through periodic surveys, confirming proper labeling and storage, and ensuring SDS documents are accessible for emergency responders. Blanket prohibition is unrealistic (many cleaning and office chemicals are needed); annual tenant reporting to FDNY is not a standard FLSD requirement.