CDOM-fDOM

Chromophoric Dissolved Organic Matter or Colored Dissolved Organic Matter (CDOM): Both refer to organic matter in water that absorbs strongly in the ultraviolet (UV) spectrum. Fluorescent Dissolved Organic Matter (fDOM) refers to the fraction of CDOM that fluoresces.  fDOM is a surrogate for CDOM, and a fast and easy means of tracking DOM in natural waters.

Measuring CDOM/fDOM is important because concentrations of CDOM affect submerged aquatic vegetation, coral reefs and other benthic communities.

Other fDOM applications include:

  • Continuous monitoring of wastewater discharge. fDOM fluorescence corresponds to total organic carbon (TOC), which is an indicator of discharge water quality.
  • fDOM concentration can indicate the dispersion, transport and mixing of a water mass.
  • Hydrology studies demonstrate connection between flow/discharge and fDOM concentrations in rivers and floodplains.

YSI Webinar | A Closer Look at fDOM Measurement

Listen to an informative webinar about measuring dissolved organic matter in surface water using YSI's newest smart sensor, fDOM.

Featured CDOM-fDOM Products

EXO1 Multiparameter Sonde

4-port Water Quality Sonde

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EXO2 Anti-Fouling Guard

Copper-alloy guard

$880.00

EXO fDOM Smart Sensor

Fluorescent Dissolved Organic Matter

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EXO Handheld Display

For use with EXO Sondes

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EXO2 Multiparameter Sonde

6-port Water Quality Sonde with Anti-fouling Wiper

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