Oxyanions are negatively charged ions (anions) that contain oxygen atoms bonded to one or more other elements. These ions are common in the natural environment and can be found in various sources. The presence of oxyanions is linked to the chemical composition and geochemical processes that occur in the Earth’s crust, atmosphere, and hydrosphere
The presence of oxyanions in the environment can have both beneficial and detrimental effects. For example, they are essential nutrients for plant growth, but in excess, they can contribute to water pollution and ecosystem disruption. Monitoring and managing oxyanions in natural and human-altered environments are critical for maintaining water quality, protecting ecosystems, and ensuring public health.