Uranium in the Surrounding of San Marcos-Sacramento River Environment (Chihuahua, Mexico)

Table 8

Activity concentrations, their uncertainties of uranium, and corresponding AR (²³⁴U/²³⁸U) in the plant sample taken near to the San Marcos River (point 5). Sampling was carried out in August of 2005.

Plant	^238U (Bq/kg)	^234U (Bq/Kg)	^234U/^238U
Root	1.7±0.1	1.9±0.1	1.1±0.09
leaf	5.3±0.1	5.8±0.1	1.1±0.03
Stem	1.1±0.03	1.1±0.03	1±0.04