Table 1.
Compound | MRL (μg/L) | Advisory or State Standard (ng/L)1 | Source |
---|---|---|---|
Perfluoroheptanoate (PFHpA) | 0.01 | 702 | CTDPH |
Perfluorooctanoate (PFOA) | 0.02 | 702, 703, 202, 14 | LHA, CTDPH, VTDOH, NJDWQI |
Perfluorononanoate (PFNA) | 0.02 | 702, 10 | CTDPH, NJ |
Perfluorobutane sulfonate (PFBS) | 0.09 | – | – |
Perfluorohexane sulfonate (PFHxS) | 0.03 | 702 | CTDPH |
Perfluorooctane sulfonate (PFOS) | 0.04 | 702, 202 | LHA, VTDOH |
Notes: CTDPH = Connecticut Department of Public Health, LHA = USEPA lifetime health advisory, VTDOH = Vermont Department of Health, NJDWQI = New Jersey Drinking Water Quality Institute. (1) Includes only regulatory limits used in this study to evaluate the UCMR3 data set and is not a comprehensive review of U.S. state-level PFAS regulatory limits. It should be noted that regulatory limits are subject to change. (2) Regulatory limit applies to the sum of PFHpA, PFOA, PFNA, PFHxS, and PFOS (3) Regulatory limit applies to the sum of PFOS and PFOA because their reference doses are numerically identical and based on similar developmental effects (USEPA 2016b, 2016a).