[{"name":"Nitrate as N (mg/l)","color":"#b2df8a","description":"Nitrate (NO3-) is a naturally occurring nutrient ion in water but is also found in fertiliser and sewage. Too much nitrate can cause harmful algal blooms.","datasets":[{"code":"ea_water_quality","id":"0117"},{"code":"ea_wq_sonde","id":"nitrate"},{"code":"freshwater_watch","id":"chemical_nitrate"}],"dataset":{"code":"freshwater_watch","id":"chemical_nitrate"}},{"name":"Orthophosphate, reactive as P (mg/l)","color":"#ff7f00","description":"Phosphate (PO43-) is a plant nutrient ion and is found in sewage and fertiliser. High phosphate levels can cause harmful algal blooms.","datasets":[{"code":"ea_water_quality","id":"0180"},{"code":"freshwater_watch","id":"chemical_phosphate"},{"code":"thames_initiative","id":"Soluble reactive phosphorus (μg/L)"}],"thresholds":[{"value":0.05,"name":">= 'Moderate' phosphate/orthophosphate threshold","visible":"legendonly"},{"value":0.1,"name":">= 'Poor' phosphate/orthophosphate threshold","visible":"legendonly"}],"dataset":{"code":"freshwater_watch","id":"chemical_phosphate"}},{"name":"Secchi Tube: Turbidity (NTU)","color":"royalblue","description":"Turbidity means how cloudy the water is. Higher turbidity means there are more particles in the water, which can reduce the light available for aquatic plants and harm fish.","datasets":[{"code":"ea_wq_sonde","id":"turbidity"},{"code":"freshwater_watch","id":"optical_secchi_turbidity"}],"thresholds":[{"value":100,"name":">= 'Poor' turbidity threshold","visible":"legendonly"}],"dataset":{"code":"freshwater_watch","id":"optical_secchi_turbidity"}}]