Dissolved oxygen (DO) refers to the amount of oxygen gas dissolved in a liquid, typically water. It is an essential parameter for assessing water quality and the health of aquatic ecosystems.

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The availability of dissolved oxygen in water is crucial for the survival of aquatic organisms, as they rely on oxygen for respiration. The primary source of dissolved oxygen in water is atmospheric oxygen that dissolves into the water through various processes such as diffusion and aeration. Photosynthesis by aquatic plants and algae also contributes to the production of dissolved oxygen during daylight hours.

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Dissolved oxygen levels in water can vary based on factors such as temperature, salinity, and pressure. Warmer water temperatures and higher levels of atmospheric pressure tend to decrease the dissolved oxygen capacity, while colder water temperatures and increased pressure can enhance it. Conversely, pollution, organic matter decomposition, and excessive algal growth can deplete dissolved oxygen levels, leading to hypoxic or anoxic conditions that can be detrimental to aquatic life.

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Measurement of dissolved oxygen is typically done using a dissolved oxygen meter or probe, which detects and quantifies the concentration of dissolved oxygen in water. This measurement is expressed in units such as milligrams per liter (mg/L) or parts per million (ppm).

Monitoring dissolved oxygen is crucial for various applications, including environmental monitoring, wastewater treatment,

aquaculture, and scientific research. It helps in assessing water quality, identifying areas of low oxygen or potential pollution, and guiding management practices to maintain healthy aquatic ecosystems.

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Metron Mena offers a range of high-quality dissolved oxygen meters and probes designed for accurate and reliable measurement of dissolved oxygen in water. Our instruments are suitable for diverse applications and provide the necessary tools to assess and monitor water quality effectively. Contact us today to learn more about our dissolved oxygen measurement solutions and how they can support your specific needs.