What role do subsurface zones play in environmental health?

Subsurface zones are crucial in environmental health primarily because they play a significant role in filtering and transmitting groundwater. This process is vital for maintaining the quality and availability of freshwater resources. The subsurface zones consist of soil and rock layers that can effectively act as natural filters, removing contaminants and impurities from water as it percolates through these layers. This filtration process is essential for protecting public health, as groundwater is a common source of drinking water.

Additionally, the ability of subsurface zones to transmit groundwater contributes to the hydrological cycle, ensuring that aquifers are replenished and that ecosystems receive the necessary water supply. Contaminated groundwater can lead to a range of health issues, making the role of these subsurface zones even more critical in environmental health contexts. Understanding the function and importance of subsurface zones helps professionals in environmental health assess risks related to water quality and public health.