Which scientific product design change was directly influenced by the discovery of bioaccumulation of toxic substances in the food chain?

Throughout history, many scientific instruments and products have undergone dramatic design changes based on research discoveries and technological advancement. These transformations often reflect our deepening understanding of science itself. This trivia question explores a fascinating case of how scientific knowledge influenced product design in a way that significantly improved both function and safety.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The replacement of mercury thermometers with digital and alcohol-based alternatives in consumer and medical settings
The switch from glass to plastic petri dishes in laboratory settings
The transition from film to digital imaging in X-ray technology
The development of reusable rocket components in space exploration