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 ›25 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, nitrate, odour, water surface, oxygen, ph, phosphate-phosphorus, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total dissolved solids (tds), total suspended solids (tss), turbidity, water flow, water level, water temperature, water use
View form & equipment22 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, nitrate, odour, water surface, oxygen, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total suspended solids (tss), turbidity, water flow, water level, water temperature, water use
View form & equipment13 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
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 & equipmentRecent photos
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Gallions Lake Wetland Outlet, 7 September 2026
Dataset: Marsh Dykes & Thamesmead Water Quality Group -
Gallions Lake Wetland Outlet, 7 September 2026
Dataset: Marsh Dykes & Thamesmead Water Quality Group -
Gallions Lake Wetland Outlet, 7 September 2026
Dataset: Marsh Dykes & Thamesmead Water Quality Group -
Gallions Lake Wetland Outlet, 7 September 2026
Dataset: Marsh Dykes & Thamesmead Water Quality Group