Uranium in the Surrounding of San Marcos-Sacramento River Environment (Chihuahua, Mexico)
Figure 2
Uranium contents in underground water; (a) 238U activity concentration (Bq/L), (b) 234U/ 238U activity ratio. Note: water from wells 1 and 2 was sampled in 2005; water from wells 3 to 17 was sampled in 2007.