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. Author manuscript; available in PMC: 2022 Feb 5.
Published in final edited form as: J Org Chem. 2021 Jan 21;86(3):2037–2057. doi: 10.1021/acs.joc.0c02774

Table 1.

EPA Method 521 LODs186 and Corresponding EPA Screening Levels for Residential Tap Water182

N-nitrosamine Method 521 LOD (ng/L) screening level (ng/L)
N-nitrosodimethylamine (NDMA) 0.28 0.11
N-nitrosodiethylamine (NDEA) 0.26 0.17
N-nitrosomethylethylamine (NMEA) 0.28 0.71
N-nitrosodi-n-propylamine (NDPA) 0.32 11
N-nitrosodi-n-butylamine (NDBA) 0.36 2.7
N-nitrosopyrrolidine (NPYR) 0.35 37
N-nitrosopiperidine (NPIP) 0.66 8.2