Arsenic, dissolved
Overview
Arsenic is a nonmetallic element that commonly is found at small concentrations in surface waters, but larger concentrations can be found in ground water because of increased solubility in the absence of oxygen. Arsenic is found included in sulfide minerals, such as pyrite, in association with iron hydroxides, associated with burning of coals, and as a pesticide or pesticide additive.
Stations That Measure or Compute Continuous Arsenic
Click a station to view measurements of arsenic.