Figure 1.
Regression lines of Pb concentration in the soil and grass, and Pb transfer percentage from soil to grass, grass to milk and soil to milk.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.