Practice Questions

TLS Online TPP Program

#Question id: 11995

You are working for the Environmental Protection Agency and researching the effect of a potentially toxic chemical in drinking water. There is no documented scientific evidence showing that the chemical is toxic, but many suspect it to be a health hazard. Using the precautionary principle, what would be a reasonable environmental policy?

#Unit 10. Ecological Principles

Establish no regulations until there are conclusive scientific studies.
Set the acceptable levels of the chemical conservatively low, and keep them there unless future studies show that they can be safely raised.
Set the acceptable levels at the highest levels encountered, and keep them there unless future studies demonstrate negative health effects.
Caution individuals to use their own judgment in deciding whether to drink water from a potentially contaminated area