Question

7._______ is the metal that is found in the

atmosphere of roads with heavy traffic.​

Answer 1

Explanation:

The metals in focus are cadmium (Cd), chromium (Cr), Cu, nickel (Ni), Pb, Sb and Zn. Cadmium, Cr, Ni, Pb and Zn were chosen as they are well documented traffic derived metals and Cu and Sb were selected as they have shown a rapidly increased accumulation rate around roads during the last decades.