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.

Essential fDOM Posts on the Blog

Southeastern Estuarine Research Society Meeting fDOM Sensor Research

YSI Expert Tip 1 of 7 - Get Your Water Quality Sonde Field Ready

How Does Real-Time Data Save You Time?

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

Multiparameter Water Quality Sonde with 4 sensor ports

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EXO2 / EXO3 Anti-Fouling Guard

Copper-alloy guard

$899.00

EXO fDOM Smart Sensor

EXO Fluorescent Dissolved Organic Matter Digital Smart Sensor

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EXO Handheld Display

Enhanced interface for the EXO platform.

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EXO2 Multiparameter Sonde

Multiparameter Water Quality Sonde with 7 sensor ports (including a central wiper port)

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