receive exposure in conjunction with medical diagnosis and treatment.
Again, the choice is yours.

At ground zero, Trinitite, the green, glassy substance found in the
area, is still radioactive and must not be picked up.


Typical radiation exposures for Americans
Per The National Council on Radiation Protection

On hour at ground zero = 1/2 mrem

Cosmic rays from space = 40 mrem at sea level per year

Radioactive minerals in rocks and soil = 55 mrems per year

Radioactivity from air, water, and food = anywhere from 20 to 400 mrem
per year

About 22 mrem per chest X-ray and 900 mrem for whole-mouth dental X-
rays

Smoking one pack of cigarettes a day for one year = 40 mrem

Miscellaneous such as watch dials and smoke detectors = 2 mrem per
year



How to Get to Trinity Site