About this organization
Thames21's water monitoring programme relies on citizen scientists to collect crucial data on river health, focusing on water quality
Read moreRecent locations
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Dataset: Brent Catchment Water Quality Working Group
Outfall at RMI Site - Dollis Brook
140 datapoints on 8 dates (June 15 2025 → December 10 2025)
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Dataset: Brent Catchment Water Quality Working Group
Riverside Park (Upstream) - Dollis Brook
284 datapoints on 29 dates (May 20 2023 → December 10 2025)
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Dataset: Lea Guardians
Hatch Roundabout - Downstream - The Ching
255 datapoints on 20 dates (March 21 2025 → December 10 2025)
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Dataset: Lea Guardians
Hatch Roundabout - Upstream - The Ching
255 datapoints on 20 dates (March 21 2025 → December 10 2025)
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Dataset: Lea Guardians
Beech Hall Crescent CSO - River Ching
637 datapoints on 50 dates (November 05 2024 → December 09 2025)
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Dataset: Lea Guardians
Beech Hall - The Ching
664 datapoints on 65 dates (December 08 2023 → December 09 2025)
