Aire at Cononley
EA name: AIRE AT CONONLEY
Environment Agency sampling point NE-49400718 · Freshwater - rivers · listed as open (“open” does not mean it is sampled now)
These are samples taken on a date, not live readings of the river. Results reach the Environment Agency's archive days to months after the sample is taken, so the newest here may be weeks or months old. FloodRadar does not grade them.
Where and when
- Last sampled
- 12 Oct 2026, 13:2713 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 16 since 12 Jan 2024 Imported periods: 1 Oct 2023 – 25 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives) · results completed 14 Oct 2026
- Where
- National Grid 399532, 446772As published, to the nearest 1 m. Open in a map
- River, by its own name
- Aire
- River, by the map
- River AirePlaced on the river its name gives, 6 m from the line.
- Next gauge downstream
- Kildwick On the River Aire · 2.9 km along the river
- Nearest gauge upstream
- Cononley On the River Aire · 0.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (9 samples)
Environmental monitoring statutory (EU directives) (7 samples)
Results here were completed a median of 13 days after the sample was taken (2 to 49 days, 7 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
89.9%
Sampled 12 Oct 2026, 13 days ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | 89.9 | 89.9% |
| 16 Sep 2026, 10:49 | 78.5 | 78.5% |
| 10 Sep 2026, 10:47 | 92.2 | 92.2% |
| 12 Aug 2026, 10:03 | 80.5 | 80.5% |
| 12 Aug 2026, 10:02 | 80.5 | 80.5% |
| 8 Jul 2026, 12:28 | 84.7 | 84.7% |
| 1 Jul 2026, 11:50 | 88.8 | 88.8% |
| 4 Jun 2026, 11:02 | 86.4 | 86.4% |
| 15 May 2026, 09:24 | 98.2 | 98.2% |
| 1 Apr 2026, 14:47 | 97.4 | 97.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.2 mg/l
Sampled 12 Oct 2026, 13 days ago · 7 results banked
Every result (7)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | 10.2 | 10.2 mg/l |
| 10 Sep 2026, 10:47 | 9.76 | 9.76 mg/l |
| 12 Aug 2026, 10:03 | 7.55 | 7.55 mg/l |
| 1 Jul 2026, 11:50 | 8.27 | 8.27 mg/l |
| 4 Jun 2026, 11:02 | 8.86 | 8.86 mg/l |
| 15 May 2026, 09:24 | 11.8 | 11.8 mg/l |
| 1 Apr 2026, 14:47 | 11.2 | 11.2 mg/l |
Water temperature
code 0076 · °C
9.7 °C
Sampled 12 Oct 2026, 13 days ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | 9.7 | 9.7 °C |
| 16 Sep 2026, 10:49 | 15.7 | 15.7 °C |
| 10 Sep 2026, 10:47 | 12.7 | 12.7 °C |
| 12 Aug 2026, 10:03 | 18.3 | 18.3 °C |
| 12 Aug 2026, 10:02 | 18.3 | 18.3 °C |
| 8 Jul 2026, 12:28 | 18.9 | 18.9 °C |
| 1 Jul 2026, 11:50 | 18.7 | 18.7 °C |
| 4 Jun 2026, 11:02 | 14.1 | 14.1 °C |
| 15 May 2026, 09:24 | 7.3 | 7.3 °C |
| 1 Apr 2026, 14:47 | 9.2 | 9.2 °C |
pH
code 0061
8.01
Sampled 12 Oct 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | 8.01 | 8.01 |
| 16 Sep 2026, 10:49 | 8 | 8 |
| 10 Sep 2026, 10:47 | 7.94 | 7.94 |
| 12 Aug 2026, 10:03 | 7.81 | 7.81 |
| 12 Aug 2026, 10:02 | 8 | 8 |
| 8 Jul 2026, 12:28 | 8.1 | 8.1 |
| 1 Jul 2026, 11:50 | 7.97 | 7.97 |
| 4 Jun 2026, 11:02 | 8.07 | 8.07 |
| 15 May 2026, 09:24 | 7.99 | 7.99 |
| 1 Apr 2026, 14:47 | 8.02 | 8.02 |
| 27 Mar 2024, 13:02 | 8.05 | 8.05 |
| 12 Mar 2024, 12:14 | 8.12 | 8.12 |
| 23 Feb 2024, 12:05 | 7.93 | 7.93 |
| 7 Feb 2024, 13:04 | 7.94 | 7.94 |
| 22 Jan 2024, 12:38 | 7.82 | 7.82 |
| 12 Jan 2024, 12:00 | 7.96 | 7.96 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 12 Oct 2026, 13 days ago · 7 results banked
Every result (7)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Sep 2026, 10:47 | 0.13 | 0.13 mg/l |
| 12 Aug 2026, 10:03 | 0.19 | 0.19 mg/l |
| 1 Jul 2026, 11:50 | 0.32 | 0.32 mg/l |
| 4 Jun 2026, 11:02 | 0.11 | 0.11 mg/l |
| 15 May 2026, 09:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Apr 2026, 14:47 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.49 mg/l
Sampled 12 Oct 2026, 13 days ago · 7 results banked
Every result (7)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | 1.49 | 1.49 mg/l |
| 10 Sep 2026, 10:47 | 1.77 | 1.77 mg/l |
| 12 Aug 2026, 10:03 | 4.49 | 4.49 mg/l |
| 1 Jul 2026, 11:50 | 4.31 | 4.31 mg/l |
| 4 Jun 2026, 11:02 | 1.67 | 1.67 mg/l |
| 15 May 2026, 09:24 | 1.3 | 1.3 mg/l |
| 1 Apr 2026, 14:47 | 1.99 | 1.99 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.032 mg/l
Sampled 12 Oct 2026, 13 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | 0.032 | 0.032 mg/l |
| 10 Sep 2026, 10:47 | 0.046 | 0.046 mg/l |
| 1 Jul 2026, 11:50 | 0.067 | 0.067 mg/l |
| 4 Jun 2026, 11:02 | 0.046 | 0.046 mg/l |
| 15 May 2026, 09:24 | 0.026 | 0.026 mg/l |
| 1 Apr 2026, 14:47 | 0.022 | 0.022 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
358 µS/cm
Sampled 12 Oct 2026, 13 days ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 Oct 2026, 13:27 | 358 | 358 µS/cm |
| 16 Sep 2026, 10:49 | 406 | 406 µS/cm |
| 10 Sep 2026, 10:47 | 374 | 374 µS/cm |
| 12 Aug 2026, 10:03 | 444 | 444 µS/cm |
| 12 Aug 2026, 10:02 | 444 | 444 µS/cm |
| 8 Jul 2026, 12:28 | 425 | 425 µS/cm |
| 1 Jul 2026, 11:50 | 430 | 430 µS/cm |
| 4 Jun 2026, 11:02 | 390 | 390 µS/cm |
| 15 May 2026, 09:24 | 400 | 400 µS/cm |
| 1 Apr 2026, 14:47 | 411 | 411 µS/cm |
Everything measured here
39 determinands, each kept by its code, unit and sample material: results in different units or on different materials are never mixed. A “below” result is under the laboratory's detection limit, not zero.
Show all 39 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 10 | Apr 2026 – Oct 2026 | 89.9% 12 Oct 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 7 | Apr 2026 – Oct 2026 | 10.2 mg/l 12 Oct 2026 |
| Temperature of Water 0076 | River water | 10 | Apr 2026 – Oct 2026 | 9.7 °C 12 Oct 2026 |
| pH 0061 | River water | 16 | Jan 2024 – Oct 2026 | 8.01 12 Oct 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 7 | Apr 2026 – Oct 2026 | below 0.03 mg/l 12 Oct 2026 |
| Nitrate as N 0117 | River water | 7 | Apr 2026 – Oct 2026 | 1.49 mg/l 12 Oct 2026 |
| Orthophosphate, reactive as P 0180 | River water | 6 | Apr 2026 – Oct 2026 | 0.032 mg/l 12 Oct 2026 |
| Conductivity at 25 C 0077 | River water | 10 | Apr 2026 – Oct 2026 | 358 µS/cm 12 Oct 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 7 | Apr 2026 – Oct 2026 | 150 mg/l 12 Oct 2026 |
| Aluminium, Dissolved 6037 | River water | 6 | Jan 2024 – Mar 2024 | 22 µg/l 27 Mar 2024 |
| Ammonia un-ionised as N 0119 | River water | 7 | Apr 2026 – Oct 2026 | below 0.00054 mg/l 12 Oct 2026 |
| Barium, Dissolved 9446 | River water | 3 | Jul 2026 – Sep 2026 | 49 µg/l 16 Sep 2026 |
| Boron, Dissolved 9447 | River water | 3 | Jul 2026 – Sep 2026 | below 100 µg/l 16 Sep 2026 |
| Cadmium 0108 | River water | 3 | Jul 2026 – Sep 2026 | below 0.1 µg/l 16 Sep 2026 |
| Cadmium, Dissolved 0106 | River water | 9 | Jan 2024 – Sep 2026 | below 0.1 µg/l 16 Sep 2026 |
| Calcium, Dissolved 0239 | River water | 9 | Jan 2024 – Sep 2026 | 60 mg/l 16 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 9 | Jan 2024 – Sep 2026 | 4.7 mg/l 16 Sep 2026 |
| Chromium, Dissolved 3409 | River water | 6 | Jan 2024 – Mar 2024 | below 0.5 µg/l 27 Mar 2024 |
| Copper 6452 | River water | 3 | Jul 2026 – Sep 2026 | 1.8 µg/l 16 Sep 2026 |
| Copper, Dissolved 6450 | River water | 9 | Jan 2024 – Sep 2026 | 1.4 µg/l 16 Sep 2026 |
| Hardness, Total as CaCO3 0158 | River water | 9 | Jan 2024 – Sep 2026 | 166 mg/l 16 Sep 2026 |
| Iron, Dissolved 6460 | River water | 3 | Jul 2026 – Sep 2026 | 120 µg/l 16 Sep 2026 |
| Lead 0050 | River water | 3 | Jul 2026 – Sep 2026 | below 2 µg/l 16 Sep 2026 |
| Lead, Dissolved 0052 | River water | 9 | Jan 2024 – Sep 2026 | below 2 µg/l 16 Sep 2026 |
| Lithium, Dissolved 4201 | River water | 3 | Jul 2026 – Sep 2026 | below 100 µg/l 16 Sep 2026 |
| Magnesium, Dissolved 0235 | River water | 9 | Jan 2024 – Sep 2026 | 3.9 mg/l 16 Sep 2026 |
| Manganese, Dissolved 6458 | River water | 3 | Jul 2026 – Sep 2026 | 30 µg/l 16 Sep 2026 |
| Nickel 6462 | River water | 3 | Jul 2026 – Sep 2026 | 1.5 µg/l 16 Sep 2026 |
| Nickel, Dissolved 3410 | River water | 9 | Jan 2024 – Sep 2026 | 1.3 µg/l 16 Sep 2026 |
| Nitrite as N 0118 | River water | 7 | Apr 2026 – Oct 2026 | 0.0073 mg/l 12 Oct 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 7 | Apr 2026 – Oct 2026 | 1.5 mg/l 12 Oct 2026 |
| pH : In Situ 3169 | River water | 3 | Jul 2026 – Sep 2026 | 7.93 16 Sep 2026 |
| Potassium, Dissolved 0209 | River water | 3 | Jul 2026 – Sep 2026 | 3.3 mg/l 16 Sep 2026 |
| Sodium, Dissolved 0205 | River water | 3 | Jul 2026 – Sep 2026 | 15 mg/l 16 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 3 | Jul 2026 – Sep 2026 | 11 mg/l 16 Sep 2026 |
| Strontium, Filtered 6693 | River water | 3 | Jul 2026 – Sep 2026 | 150 µg/l 16 Sep 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 3 | Jul 2026 – Sep 2026 | 23 mg/l 16 Sep 2026 |
| Zinc 6455 | River water | 3 | Jul 2026 – Sep 2026 | 6.4 µg/l 16 Sep 2026 |
| Zinc, Dissolved 3408 | River water | 9 | Jan 2024 – Sep 2026 | below 5 µg/l 16 Sep 2026 |
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.