This allows for color compensation due to absorption 45.The Orion Method AQ4500 uses ratiometric, nephelometric technology to measure turbidity. To remain compliant with the EPA, the Orion Method AQ4500 has a limited range of 0.06-40 NTU 46. If a sample reads over this limit...
and deplete oxygen, which can adversely affect aquatic life. Higher levels of solids also slow down photosynthesis by aquatic plants by reducing light transfer. Concentrations of TDS that are too high or too low may limit aquatic plants growth and may lead to the death of many marine organisms...