What does a pH reading below 6.5 typically indicate about water quality?

A pH reading below 6.5 typically indicates that water is acidic. The pH scale ranges from 0 to 14, with 7 being neutral. Values below 7 signify increasing acidity, with lower values pointing to a stronger acidic condition. Water with a pH lower than 6.5 can affect aquatic life, as many organisms thrive in more neutral or slightly alkaline conditions. Additionally, acidic water can lead to increased solubility of heavy metals, which is a concern for both environmental health and human consumption.

Acidic water quality may result from various factors, including natural processes like the breakdown of organic matter, or human activities, such as industrial discharges and agricultural runoff. Monitoring pH is crucial for assessing overall water quality and ensuring that it is safe for ecosystems and human use.