Which gases frequently found in water encourage corrosion?

The presence of oxygen and carbon dioxide in water can significantly contribute to corrosion processes. Oxygen, when dissolved in water, can lead to oxidation reactions that promote the deterioration of metal surfaces. This is particularly evident in scenarios where metals are exposed to dynamic environments, such as in water pipes, where the presence of oxygen facilitates rust formation on iron and steel surfaces.

Carbon dioxide also plays a critical role in corrosion, especially in the form of carbonic acid when it dissolves in water. This weak acid can lower the pH of the water, making it more acidic and thereby increasing the corrosive potential against metals. When carbon dioxide concentrations are elevated, it can accelerate the leaching of metal ions from surfaces, further contributing to metal degradation in environments such as drinking water systems.

Understanding the corrosive effects of these gases is crucial for professionals in environmental health and sanitation, as it allows for better management and mitigation of corrosion-related issues in water supply systems.