Which statement about D&C Red No. 33's environmental impact is true?

Which statement about D&C Red No. 33's environmental impact is true?

• A. It is safe for aquatic systems and derived from natural sources.
• B. It is not produced from petroleum sources.
• C. It is toxic to aquatic systems and is produced from petroleum sources.
• D. It degrades instantly and leaves no residue.

Answer: (C)

D&C Red No. 33 is a synthetic cosmetic dye derived from petrochemical feedstocks, so its environmental origin is petroleum-based. The chemical structures typical of synthetic dyes can interact with aquatic life, and many dyes have been shown to be toxic to fish and other aquatic organisms at certain concentrations, making aquatic toxicity a real concern in environmental contexts. They are often persistent and not readily biodegradable, meaning residues can remain in water bodies after discharge rather than degrading instantly. Because of these factors, the statement that it is toxic to aquatic systems and produced from petroleum sources accurately reflects its potential ecological hazard and petrochemical origin. The other options misstate either its origin or its environmental behavior, ignoring the chemical nature and persistence of synthetic dyes.

D&C Red No. 33 is a synthetic cosmetic dye derived from petrochemical feedstocks, so its environmental origin is petroleum-based. The chemical structures typical of synthetic dyes can interact with aquatic life, and many dyes have been shown to be toxic to fish and other aquatic organisms at certain concentrations, making aquatic toxicity a real concern in environmental contexts. They are often persistent and not readily biodegradable, meaning residues can remain in water bodies after discharge rather than degrading instantly. Because of these factors, the statement that it is toxic to aquatic systems and produced from petroleum sources accurately reflects its potential ecological hazard and petrochemical origin. The other options misstate either its origin or its environmental behavior, ignoring the chemical nature and persistence of synthetic dyes.