← EA monitoring
Environment Agency monitoring point
RIVER DART AT TOTNES WEIR
EA sampling point SW-70720104 · 1,000 samples · 48 determinands · latest 2026-06-08
Mercury (MICROGRAM PER LITRE) over time
Samples — Mercury
| Date | Result | Unit | Purpose |
|---|---|---|---|
| 2026-04-15 10:25 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-03-04 11:11 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-02-03 09:19 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-01-12 12:18 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-12-12 10:26 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-11-28 13:07 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-10-20 13:33 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-09-15 11:57 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-08-05 14:22 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-07-15 13:37 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-06-26 12:05 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-05-13 09:56 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-04-23 10:18 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-03-10 10:03 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-02-10 12:01 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-01-23 10:10 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-12-02 09:51 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-11-22 14:07 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-10-28 10:55 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-09-20 13:04 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-08-23 08:10 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-07-22 11:13 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-06-24 11:31 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-05-17 13:02 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-04-15 09:36 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-03-22 09:32 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-02-21 12:19 | 0.014 | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-01-15 13:45 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-12-05 10:13 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-11-20 10:27 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-10-18 13:50 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-09-28 11:08 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-07-17 11:08 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-06-29 12:09 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-06-27 09:05 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-04-26 10:46 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-05-12 09:29 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-04-06 10:13 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-03-11 10:30 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-02-04 09:04 | — | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-01-21 11:46 | 0.012 | MICROGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
Source: Environment Agency Water Quality Archive (per-sample observations), Open Government Licence. Regulator monitoring — complements Friends of the Dart’s citizen sampling.