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.
The red contour indicates the highly ventilated region (70th–100th percentiles) and the green contour indicates the poorly ventilated region (0–30th percentiles). The dose >5 Gy is shown.
