Measuring Nitrate In Water

Because of this contamination, environmental scientists often measure the concentration of nitrate, NO3-, in water.

Testing kits measure nitrogen in various forms. Nitrogen from nitrate is referred to as nitrate nitrogen, NO3-–N. This helps differentiate it from nitrogen found in other compounds, such as ammonium nitrogen, NH4+–N.

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Animated illustration of measuring nitrate in water.
Animated illustration of measuring nitrate in water.