Variable Definition: 
Nitrogen, nitrate (NO3); Nitrate (NO3) Nitrogen
Variable Description: 

Nitrate
detection limit 3-10
Nitrate Nitrogen (up to 1989 by automated colorimetric analysis (Cd-Cu reduction); after 1989 by liquid chromatography with UV or conductivity detection) in ug N/L

Unit: 
parts per billion; Concentration ppb
Value Type: 
Average
Data Type: 
real
Attribute or Value: 
Variable
Data Sets using this Variable: