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description: Half-life of NO3-N in the aquifer
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# hl\_no3n

Nitrate nitrogen in the aquifer may be removed through uptake by bacteria present in the aquifer or through chemical conversion to other compounds in regions of the aquifer that are depleted of oxygen (reduced environment). The half-life is the time period required for the concentration of nitrate nitrogen to drop to half its original value. The reduction is a net reduction by all processes occurring in the aquifer.
