ExpertGlossary

• Total dry weight of all living organisms that can be supported at each tropic level in a food chain. Also, materials that are biological in origin, including organic material (both living and dead) from above and below ground, for example, trees, crops, grasses, tree litter, roots, and animals and animal waste.
  EPA - Cite This Source - This Definition
• Total dry weight of all living organisms that can be supported at each tropic level in a food chain. Also, materials that are biological in origin, including organic material (both living and dead) from above and below ground, for example, trees, crops, grasses, tree litter, roots, and animals and animal waste.
  EPA - Cite This Source - This Definition
• Browse Related Terms: Bacteria, Decomposition, Septic tank, Sewage treatment (primary), Sludge, Wastewater

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