Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

21 July 2026

East Finchley Allotments - East Stream

18 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, water flow, water level, water temperature, water use

21 July 2026

East Finchley Allotments - West Stream

18 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, water flow, water level, water temperature, water use

21 July 2026

Beech Hall Crescent CSO

12 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

21 July 2026

Beech Hall

12 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

21 July 2026

Hatch Roundabout - Downstream

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

21 July 2026

Hatch Roundabout - Upstream

13 parameters tested

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

21 July 2026

Arnos Park Growing Space (downstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

21 July 2026

Arnos Park Growing Space (upstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

21 July 2026

Waterfall Walk 2 (Downstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

21 July 2026

Waterfall Walk 1 (Upstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

19 July 2026

Brookfield Meadow

4 parameters tested

ammonia, current weather, phosphate, weather in the past 24hrs

19 July 2026

Folly Lane EA monitoring point

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

19 July 2026

Whitehall Outfall 5b

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

19 July 2026

Whitehall Outfall 5a

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

18 July 2026

Newgate Street

13 parameters tested

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

18 July 2026

D/S Whitehall Rd

12 parameters tested

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

18 July 2026

Whitehall Outfalls

13 parameters tested

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

17 July 2026

Whitehall Plain

14 parameters tested

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

17 July 2026

Footbridge near Rangers Road

11 parameters tested

algae, current weather, current weather description, flow, odour, water surface, weather in the past 24hrs, weather in the past 24hrs description, water depth, water flow, water level

17 July 2026

Downstream of Connaught Water

11 parameters tested

algae, current weather, current weather description, flow, odour, water surface, weather in the past 24hrs, weather in the past 24hrs description, water depth, water flow, water level