← EA monitoring
Environment Agency monitoring point
RIVER YEALM AT HELE CROSS
EA sampling point SW-81020186 · Upper River Yealm · 1,000 samples · 9 determinands · latest 2026-05-22
Ammoniacal Nitrogen as N (MILLIGRAM PER LITRE) over time
Samples — Ammoniacal Nitrogen as N
| Date | Result | Unit | Purpose |
|---|---|---|---|
| 2026-05-22 12:27 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-05-12 12:31 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-05-05 12:38 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-04-23 12:37 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-04-13 14:26 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-04-08 11:19 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-04-01 13:18 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-03-27 12:07 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-03-19 13:19 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-03-09 11:51 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-03-03 13:51 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-02-25 12:50 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-02-17 13:20 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-02-11 13:32 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-02-03 13:38 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-01-26 11:50 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-01-19 12:51 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-01-16 12:43 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2026-01-08 13:11 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-12-22 11:50 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-12-17 12:45 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-12-10 13:02 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-12-04 13:29 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-11-24 11:22 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-11-19 13:26 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-11-13 11:47 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-11-06 13:08 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-10-28 13:54 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-10-20 13:03 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-10-15 12:38 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-10-10 12:22 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-10-02 12:33 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-09-24 12:50 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-09-17 12:05 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-09-10 13:52 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-09-05 10:55 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-08-27 12:34 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-08-19 12:54 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-08-14 11:33 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-08-04 13:39 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-07-23 13:33 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-07-16 12:42 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-07-09 10:01 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-07-03 12:35 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-06-27 14:03 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-06-18 12:19 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-06-10 13:39 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-06-02 10:05 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-05-27 13:22 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-05-21 11:04 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-05-14 11:37 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-05-09 13:59 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-05-01 13:12 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-04-23 11:58 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-04-15 10:57 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-04-10 15:30 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-04-01 13:40 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-03-24 14:42 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-03-17 12:44 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-03-13 12:49 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-03-05 12:58 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-02-28 10:45 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-02-19 14:03 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-02-13 12:44 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-02-06 13:51 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-01-29 13:15 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-01-22 12:46 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-01-14 12:39 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-01-10 13:14 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2025-01-02 13:49 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-12-18 13:06 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-12-11 10:07 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-12-04 12:45 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-11-29 14:03 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-11-18 12:52 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-11-13 12:58 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-11-05 14:11 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-10-29 14:25 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-10-21 13:28 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-10-18 13:24 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-10-10 13:38 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-10-04 13:43 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-09-25 14:15 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-09-18 14:59 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-09-13 12:17 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-09-02 11:38 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-08-29 12:27 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-08-21 14:22 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-08-16 16:42 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-08-08 12:20 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-07-30 14:15 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-07-23 13:26 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-07-17 14:13 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-07-08 11:10 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-07-05 11:31 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-06-27 13:10 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-06-20 12:22 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-06-12 11:14 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-06-06 11:56 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-05-28 12:27 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-05-20 12:37 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-05-14 14:26 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-05-09 11:49 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-05-01 10:24 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-04-23 12:14 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-04-17 14:11 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2024-04-17 14:10 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-04-09 13:05 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-04-03 12:53 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-03-20 14:01 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-03-08 12:11 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-02-23 11:15 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-02-01 10:17 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-01-15 12:12 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2024-01-02 13:23 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-12-04 11:14 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-11-21 12:30 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-11-03 11:45 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-10-20 11:49 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-10-04 12:36 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-07-18 13:56 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-07-05 11:31 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-06-16 11:18 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-03-24 10:19 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-03-15 12:57 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-03-07 10:12 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-03-01 11:58 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-02-21 10:35 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-02-14 12:06 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-02-09 11:36 | 0.031 | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-02-02 11:50 | 0.063 | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2023-01-23 11:25 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-12-13 12:44 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-12-06 12:32 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-11-28 10:34 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-11-23 10:15 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-11-17 11:30 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-11-08 12:17 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-11-04 12:33 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-10-28 11:31 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-10-18 12:25 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-10-05 12:32 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-09-26 11:33 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-09-22 10:35 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-09-14 10:28 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-09-08 09:55 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-08-31 11:40 | 0.047 | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-08-25 12:56 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-08-16 11:19 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-08-12 10:49 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-08-01 10:47 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-07-25 11:05 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-07-18 12:30 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-07-13 11:27 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-07-05 10:23 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-06-21 11:12 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-06-09 12:21 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-05-23 11:28 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-05-16 11:27 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-05-11 10:06 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-05-03 12:36 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-04-28 10:26 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-04-22 11:26 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-04-13 12:59 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-04-08 12:30 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-03-28 12:41 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-03-21 12:20 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-03-17 11:19 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-03-10 12:56 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-02-25 11:51 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-02-15 10:17 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-02-11 13:46 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-02-03 09:49 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-01-26 10:26 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-01-17 12:40 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-01-12 12:08 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2022-01-06 12:43 | — | MILLIGRAM PER LITRE | MONITORING (UK GOVT POLICY - NOT GQA OR RE) |
| 2021-12-02 08:35 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-11-01 11:18 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-10-18 12:32 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-10-01 09:26 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-08-16 14:03 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-07-09 11:31 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-06-03 13:52 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-05-12 12:15 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-04-26 09:49 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-03-11 10:32 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-02-18 13:33 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
| 2021-01-13 14:58 | — | MILLIGRAM PER LITRE | MONITORING (NATIONAL AGENCY POLICY) |
Source: Environment Agency Water Quality Archive (per-sample observations), Open Government Licence. Regulator monitoring — complements Friends of the Dart’s citizen sampling.