Table 3 Water wells (site number 62–77) and seepage water (site number 9) with the presence of illudane glycosides and/or corresponding pterosins
From: Occurrence of carcinogenic illudane glycosides in drinking water wells
Site number | 9 | 62 | 66 | 68a | 68b | 69a | 69b | 70 | 75 | 77 |
|---|---|---|---|---|---|---|---|---|---|---|
Country | DK | DK | SE | SE | SE | SE | SE | SE | ES | ES |
Sampling date | 07.08 | 05.07 | 13.10 | 01.08 | 13.10 | 01.08 | 13.10 | 15.08 | 01.10 | 01.10 |
Distance to bracken (m) | 4 | 5 | 1 | 1 | 1 | 3 | 3 | 3 | 2 | 2 |
Well depth (m) | – | 8 | n.a | 40 | 40 | 10 | 10 | 20 | n.a | n.a |
Water pH | 5.9 | 7 | 7.1 | n.a | 7.2 | n.a | 6.4 | 6.8 | 7.1 | 7.3 |
EC (µS cm−1) | 171 | 320 | 467 | n.a | 310 | n.a | 121 | 487 | 812 | 737 |
Rain event (day b.s.) | 1 | 1 | 1 | 1 | 2 | 1 | 2 | n.a | n.a | n.a |
Soil type [42] | CS | SC | BR | BR | BR | n.a | n.a | n.a | SS | SS |
Groundwater purpose | Seep | Tech | Drink | Drink | Drink | Drink | Drink | Drink | Drink | Drink |
PTA (µg L-1) | 1.27 ± 0.08 | – | 0.27 ± 0.02 | – | – | – | – | – | trace | trace |
PtB (µg L−1) | 0.08 ± 0.03 | – | – | – | – | 0.05 ± 0.00 | – | – | – | 0.003 ± 0.00 |
CAU (µg L−1) | 0.28 ± 0.01 | Trace | – | 0.59 ± 0.05 | – | – | – | 0.75 ± 0.04 | – | – |
PtA (µg L−1) | 0.01 ± 0.01 | 0.03 ± 0.00 | 0.01 ± 0.05 | 0.01 ± 0.01 | 0.01 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.00 | 0.003± 0.00 | 0.01 ± 0.00 | - |
PTE (µg L−1) | – | – | – | – | – | – | – | – | – | – |
PtG (µg L−1) | – | – | 0.28 ± 0.04 | trace | – | – | 0.02 ± 0.02 | – | – | – |