One of the most vital resources for our planet is water. With an ever-growing population, it is essential that we monitor water quality in the environment so that we can detect changes and take action when needed.

To evaluate the suitability of water for living plants and animal organisms there is pH. If water has become too acidic or too basic due to natural or man-made pollutants, there can be a profound negative effect on aquatic life.

The concentration of dissolved oxygen (DO) in water is extremely important in nature and in the human environment. In oceans, lakes, rivers and other surface water bodies, dissolved oxygen is essential for the growth and development of aquatic life.