organization

Thames21

Dataset summary

Sample locations

Contributing from 1 March 2020 → 24 October 2026

Displaying locations 21 - 40 of 396 in total

Lea Guardians
17 observations May 31 2026 → Oct 18 2026
13 parameters tested ▾

ammonia, clarity, colour, current weather, current weather description, odour, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

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Lea Guardians
23 observations Mar 08 2025 → Oct 17 2026
21 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Lea Guardians
21 observations Mar 08 2025 → Oct 17 2026
21 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Lea Guardians
21 observations Mar 08 2025 → Oct 17 2026
21 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Lea Guardians
18 observations Jul 14 2025 → Oct 16 2026
19 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, turbidity, water flow, water level, water temperature, water use

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Lea Guardians
74 observations Mar 23 2025 → Oct 16 2026
14 parameters tested ▾

algae, ammonia, clarity, colour, conductivity, current weather, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, water flow, water level, water temperature

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Lea Guardians
18 observations Jul 01 2023 → Oct 15 2026
21 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
32 observations Feb 09 2024 → Oct 15 2026
20 parameters tested ▾

algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
32 observations Feb 09 2024 → Oct 15 2026
21 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
3 observations Aug 05 2026 → Oct 14 2026
19 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, turbidity, water flow, water level, water temperature, water use

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Lea Guardians
16 observations Feb 26 2025 → Oct 14 2026
21 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Lea Guardians
7 observations Apr 19 2026 → Oct 14 2026
21 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, oxygen, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
12 observations Oct 05 2025 → Oct 13 2026
25 parameters tested ▾

ice on, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, outfall aesthetics, outfall flow, phosphate, pollution signs, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), total dissolved solids (tds), turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
14 observations Feb 15 2024 → Oct 13 2026
24 parameters tested ▾

ice on, air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, outfall aesthetics, outfall flow, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
13 observations Oct 05 2025 → Oct 13 2026
25 parameters tested ▾

ice on, air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, outfall aesthetics, outfall flow, phosphate, pollution signs, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
13 observations Oct 05 2025 → Oct 13 2026
25 parameters tested ▾

ice on, air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, outfall aesthetics, outfall flow, phosphate, pollution signs, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature, water use

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Marsh Dykes & Thamesmead Water Quality Group
21 observations Apr 25 2024 → Oct 11 2026
23 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, nitrate, odour, water surface, oxygen, phosphate, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), total dissolved solids (tds), total suspended solids (tss), turbidity, water depth, water flow, water level, water temperature

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Ravensbourne Catchment Improvement Group's Water Quality Working Group
30 observations May 28 2024 → Oct 11 2026
17 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, oxygen, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

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