dissolved organic matter

Dissolved organic matter (DOM) refers to tiny organic molecules and compounds that are dissolved in water, often originating from decaying plants, algae, and other natural sources. These substances are too small to be seen and can influence water quality and ecosystems by providing nutrients for microorganisms, affecting the water's chemistry, and playing a role in the transport of pollutants. DOM is common in lakes, rivers, and oceans and is an important component of the natural carbon cycle, helping to sustain aquatic life and influence the clarity and color of water.