What is one consequence of untreated wastewater entering water bodies?

Untreated wastewater entering water bodies poses significant public health risks due to the presence of pathogens. This wastewater can contain bacteria, viruses, and parasites that may lead to waterborne diseases, affecting individuals who come into contact with contaminated water through activities such as swimming, fishing, or drinking.

When pathogens proliferate in water bodies, the risk of transmission increases, especially for vulnerable populations, including children, the elderly, and those with weakened immune systems. The introduction of untreated sewage not only degrades water quality but also compromises the safety of recreational activities and drinking water sources, leading to broader public health concerns.

In contrast, the other options are misleading; untreated wastewater does not enhance recreational opportunities or aquatic biodiversity. Instead, it often results in ecological degradation and harm to both human health and the environment. While some microbes can be beneficial, the overall impact of introducing untreated wastewater is detrimental, further underscoring the importance of proper wastewater treatment and management.