What happened at Subic Naval Base that involved asbestos?

• A. A chemical spill occurred
• B. Workers were exposed due to asbestos in facilities
• C. A fire occurred in the barracks
• D. Water contamination event occurred

Answer: (B)

Asbestos exposure is the key issue here. At many older naval bases, including Subic Bay, asbestos was used widely in insulation, fireproofing, and various building materials. When maintenance, renovation, or demolition work happens in facilities that contain asbestos, fibers can be released into the air and inhaled by workers. That exposure is a health risk and has led to illnesses such as asbestosis, mesothelioma, and lung cancer over time.

This is why the scenario describing workers being exposed due to asbestos in facilities is the best fit. The other events—chemical spills, fires, or water contamination—describe different kinds of hazards and do not specifically capture the asbestos exposure issue that affected people at Subic Bay.