US Long-Term Ecological Research Network
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Column Definition Unit
lakeid ltreb lakeid lake which is sampled
sta station at which sample or observation was collected/made
sampledate date sample was collected
P_total total phosphorus milligramsPerLiter
N_total total nitrogen milligramsPerLiter
NO3_NO2 nitrate and nitrite milligramsPerLiter
NH4 ammonium milligramsPerLiter
Ortho_P orthophosphate (soluble reactive phosphorus) milligramsPerLiter
SiO2 silica milligramsPerLiter
DR_Si dissolved reactive silicon milligramsPerLiter
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