Alkalinity FAQs:


Q: Is alkalinity the name given to the quantitative capacity of an aqueous solution to neutralize an acid?

A: Yes.

Q: Is alkalinity equal to the stoichiometric sum of the bases in solution?

A: Yes.

Q: Is alkalinity measured with respect to the CO2 equivalence point?

A: Yes, and the dissolution of CO2, although it adds acid and dissolved inorganic carbon, does not change the alkalinity.

Q: Is alkalinity a concentration value?

A: Yes, and increasing the volume would theoretically serve to decrease AT.

Q: Is alkalinity important in determining a stream's ability to neutralize acidic pollution from rainfall or wastewater?

A: Yes.

Q: Is alkalinity measured by adding a strong acid until all the anions listed above are converted to uncharged species?

A: Yes.

Q: Is alkalinity typically reported as mg/L as CaCO3?

A: Yes.

Q: Is alkalinity relatively stable, so significant changes can only occur over long time scales?

A: Yes, As a result, seasonal and annual variability is generally very low.

Q: Is alkalinity modeled and quantified with respect to the CO2 equivalence point?

A: Yes.

Q: Is alkalinity sometimes incorrectly used interchangeably with basicity?

A: Yes.