organization

Thames21

Dataset summary

Sample locations

Contributing from 1 March 2020 → 22 October 2026

Displaying locations 1 - 20 of 396 in total

Lea Guardians
112 observations Nov 16 2023 → Oct 22 2026
20 parameters tested ▾

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

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Lea Guardians
114 observations Jan 17 2024 → Oct 22 2026
19 parameters tested ▾

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

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Lea Guardians
56 observations Mar 21 2025 → Oct 22 2026
14 parameters tested ▾

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

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Lea Guardians
77 observations Dec 08 2023 → Oct 22 2026
17 parameters tested ▾

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

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Lea Guardians
78 observations Dec 15 2023 → Oct 22 2026
16 parameters tested ▾

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

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Lea Guardians
57 observations Mar 21 2025 → Oct 22 2026
14 parameters tested ▾

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

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Lea Guardians
89 observations Nov 05 2024 → Oct 21 2026
14 parameters tested ▾

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

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Lea Guardians
106 observations Dec 08 2023 → Oct 21 2026
17 parameters tested ▾

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

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Ravensbourne Catchment Improvement Group's Water Quality Working Group
3 observations Aug 25 2026 → Oct 19 2026
19 parameters tested ▾

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

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Brent Catchment Water Quality Working Group
9 observations Oct 30 2025 → Oct 19 2026
22 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 depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
8 observations Oct 30 2025 → Oct 19 2026
23 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, nitrites, 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 depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
44 observations May 21 2023 → Oct 19 2026
20 parameters tested ▾

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

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Brent Catchment Water Quality Working Group
8 observations Feb 24 2026 → Oct 19 2026
22 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, nitrites, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, 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
44 observations May 21 2023 → Oct 19 2026
17 parameters tested ▾

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

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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
73 observations Mar 14 2025 → Oct 17 2026
15 parameters tested ▾

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

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Lea Guardians
72 observations Mar 14 2025 → Oct 17 2026
15 parameters tested ▾

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

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