What is a potential environmental hazard associated with de-icing fluids?

De-icing fluids, commonly used to prevent ice formation on aircraft and runways, can indeed pose a threat to the environment, particularly to aquatic life. Many of these fluids contain glycol-based compounds, which, when released into water bodies, can be harmful to fish and other aquatic organisms. The toxicity arises because these substances can disrupt the biological systems of aquatic life, leading to reduced growth rates, reproductive issues, and even mortality in sensitive species.

The correct answer highlights the importance of considering the ecological impact of de-icing operations. Effective management and treatment of runoff from de-icing activities are essential to minimize these negative effects on local ecosystems, thereby protecting aquatic habitats and maintaining biodiversity.

Other choices, although they touch on important safety considerations, do not address the environmental aspects associated with de-icing fluids. While the potential for explosion or flammability is a concern in certain contexts, and the emission of harmful gases may also be relevant, the impact on aquatic life specifically draws attention to critical environmental issues related to the use of de-icing agents.