The IRC and EPA have mapped the continental United States by county and identified areas where there is a high risk of exposure to ____.

Question

Quizplus · Accepted Answer

The question mentions that the IRC and EPA have mapped the continental United States by county to identify high-risk areas of exposure to a certain substance. Among the options listed, radon is the only substance that is commonly mapped by county in the United States. Radon is a colorless, odorless gas that occurs naturally in the soil and can seep into homes through cracks and other openings. It is a known carcinogen and can pose a significant health risk if levels are elevated. Therefore, the correct answer is C) radon.

The IRC and EPA Have Mapped the Continental United States