Table 1 Mean and range (in brackets) of PFC concentration in ng/l of stream water from 2012 to 2014 (HLNUG, the authors are in possession of this data)
Substance | Measuring point 69 (n = 6) | Measuring point 77 (n = 6) | Measuring point 119 (n = 6) |
|---|---|---|---|
Location near section 1 | Location near section 2 | Location near sections 3 and 4 | |
Perfluoropentanoic acid (PFPeA) | 2260 (2000–4200) | 453 (210–740) | 6 (1–12) |
Perfluorohexanoic acid (PFHxA) | 9933 (7000–13,000) | 1238 (670–2000) | 18 (11–32) |
Perfluoroheptanoic acid (PFHpA) | 1850 (1300–2900) | 150 (100–230) | 4 (3–5) |
Perfluorooctanoic acid (PFOA) | 1500 (1100–2200) | 171 (69–350) | 8 (2–10) |
Perfluorononanoic acid (PFNA) | < LOQa | < LOQ | < LOQ |
Perfluorodecanoic acid (PFDA) | < LOQ | < LOQ | < LOQ |
Perfluorobutane sulfonate (PFBS) | 41 (< LOQ–110) | 8 (6–10) | < LOQ |
Perfluorohexane sulfonate (PFHxS) | 0.5 (< LOQ–2) | < LOQ | < LOQ |
Perfluorooctane sulfonate (PFOS) | 0.5 (< LOQ–2) | < LOQ | < LOQ |