O2vraag
O2vraag is a Dutch term that translates to "oxygen demand" or "oxygen question." It is commonly used in the context of environmental science and water quality management. Specifically, it refers to the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic matter. This process is crucial for maintaining a healthy aquatic ecosystem.
There are two main types of oxygen demand: biochemical oxygen demand (BOD) and chemical oxygen demand (COD).
High oxygen demand in water bodies can lead to a depletion of dissolved oxygen, a condition known