| The United States Environmental Protection Agency (USEPA) recently lowered the Maximum Contaminant Level (MCL) for arsenic in drinking water from 50 μg/L down to 10 μg/L. As a result, approximately 4000 water utilities nationwide will be impacted and most will need to install new processes for removal of arsenic. In order to optimize treatment and comply with the new MCL, water utilities will need to accurately measure arsenic concentrations in their raw and treated water.; The goal of this project was to develop a field method to accurately measure arsenic in drinking water samples. The method generated arsine gas from water samples by implementing previous studies for optimal arsine generation and then utilized existing technology for the detection of arsine gas. The result is a method that is capable of detecting arsenic in water samples at levels below the microgram per liter level. |
