About this organization
Thames21's water monitoring programme relies on citizen scientists to collect crucial data on river health, focusing on water quality
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View all ›21 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, oxygen, ph, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), water depth, water flow, water level, water temperature, water use
View form & equipment18 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
View form & equipment19 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, turbidity, water flow, water level, water temperature, water use
View form & equipment17 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
View form & equipment21 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, oxygen, ph, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), water depth, water flow, water level, water temperature, water use
View form & equipment21 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, oxygen, ph, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, secchi depth (clarity), water depth, water flow, water level, water temperature, water use
View form & equipmentRecent photos
View more photos ›-
Colchester Rd Bend, 10 July 2026
Dataset: Brent Catchment Water Quality Working Group -
Folly pre confluence, 12 July 2026
Dataset: Brent Catchment Water Quality Working Group -
Folly pre confluence, 12 July 2026
Dataset: Brent Catchment Water Quality Working Group -
Folly pre confluence, 12 July 2026
Dataset: Brent Catchment Water Quality Working Group