Better Life Laboratories, Inc. is a nonprofit organization. It conducts scientific research and provides technical expertise, equipment, and training to help needy people around the world.
Figure 11. Graph of arsenic concentration (mg/L) versus oxidation-reduction (mV).
If Hypothesis #2 is correct and arsenic is being released into groundwater by dissolution in a reducing environment, the concentration of arsenic should increase as
oxidation-reduction potential decreases, as shown in Figure 11.
The relationships between arsenic and sulfide, arsenic and sulfate, arsenic and total sulfur, and arsenic and oxidation-reduction potential suggest that arsenic is being
released into groundwater by dissolution in a reducing environment, not by the oxidation of iron/sulfur minerals.
Therefore, the use of groundwater for irrigation should NOT be stopped in this famine-prone country.
E-mail the President of Better Life Laboratories, Seth H. Frisbie, Ph.D. (shf3@cornell.edu).
Write us at Better Life Laboratories, 293 George Rd., East Calais, VT 05650, USA.
