Common drinking water standards, guidelines, and public health goals for total arsenic (As) in micrograms per liter (μg/L), the detection limits for total As in μg/L by inductively coupled plasma-mass spectrometry (ICP-MS), inductively coupled plasma-tandem mass spectrometry (ICP-MS/MS), and hydride generation-gas chromatography-photoionization detection (HG-GC-PID), and the estimated cancer risks at these concentrations (Eqs 1, 2, 3, 4, 5 and 6).

These cancer risks are in bold font and rounded to 2 figures.