Estimation of arsenic contamination in groundwater by the passive flux meter

Monitoring arsenic in the subsurface is a necessity today. This research evaluated the ability of the passive flux meter (PFM) to estimate arsenic in groundwater. Activated alumina, which displayed a Freundlich adsorption isotherm with respect to arsenic in solution, was evaluated as the internal sorbent for the PFM. A model aquifer incorporating PFMs estimated arsenic recovery of 87.33-99.08% in the wells. Arsenic mass recovery from extraction of the activated alumina ranged from 89.26 to 89.29%. The PFM calculated mass flux to within 4% of theoretically computed aquifer mass flux. Results indicate that PFM is a promising device for assessing arsenic in groundwater.