Summary of quantitative results
Guidelines for exceedances are based on:
United Kingdom
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Chemistry tests
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Gallions Lake in Greenwich
Gallions Lake Wetland Outlet has data for on_the_water_s_surface, current_weather_description, previous_weather_description, clarity, water_flow, water_level, ammonia, phosphates, conductivity, air_temperature, water_temperature, turbidity, current_weather, previous_weather, odour, pollution_sources, algae, water_use, colour, total_dissolved_solids_tds, ph, oxygen, total_suspended_solids_tss, nitrates, and phosphate_phosphorus from 25 January 2023 to 26 November 2025.