Updated: 2026-04-25 05:01 CEST
| Date of start | Date of end | Instrument type | Instrument number | Note |
|---|---|---|---|---|
| 1991-10-01 | 1996-12-31 | sampling by capture in solution (guajacol method) | 5 |
| Date of start | Date of end | Instrument type | Instrument number | Note |
|---|---|---|---|---|
| 1991-10-01 | 1996-12-31 | sampling by capture in solution (guajacol method) | 5 |