Figure 2.
Contribution of lead in air on blood lead levels at each age. The 5-year slope of air lead on blood lead was significantly higher than the 1-year slope.
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.