Which hazardous substances are prohibited in fire extinguishers according to California regulations?

The correct choice identifies carbon tetrachloride, chlorobromethane, and methyl bromide as hazardous substances prohibited in fire extinguishers under California regulations. These substances are classified as toxic and pose significant health risks to humans and the environment.

Carbon tetrachloride is known to cause liver damage and is a suspected carcinogen. Chlorobromethane can affect the central nervous system and is also an ozone-depleting substance. Methyl bromide is highly toxic and has been widely restricted due to its detrimental effects on both human health and the environment. Given these hazards, California regulations have specifically prohibited the use of such chemicals in fire extinguishers to ensure safety and compliance with environmental protections.

In contrast, water and foam are common and approved extinguishing agents used for various types of fires, making them safe for use. Halons, once widely used, are heavily regulated but not completely prohibited in certain specialized applications due to their effectiveness, although newer alternatives are encouraged. Hydrogen and nitrogen, while not typical agents in fire extinguishers, are not prohibited substances; instead, they are often components in various fire-fighting systems or technologies.