ATP assay

Definition

A rapid test that measures total biological energy as adenosine triphosphate to estimate microbial activity within minutes.

The ATP assay is fast and field-ready, giving results in minutes, but provides no species identification. It measures the water column unless a surface swab is taken. Like other bulk tests it indicates planktonic activity rather than biofilm on surfaces.

Related concepts

Reconnaissance and monitoring · Dip slides · Heterotrophic plate count (HPC)

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Part of The Blueprint of Water · 📏 measurement