Which type of recreation is most likely to be affected by water contamination?

Swimming is most likely to be affected by water contamination due to the direct exposure of individuals to the water. Contaminated water can harbor pathogens, chemicals, or toxins that can lead to health issues such as skin infections, gastrointestinal illnesses, and other serious diseases. Swimmers are at risk of ingesting contaminated water or having their skin come into contact with harmful substances, making water quality a paramount concern for this activity.

In contrast, while fishing involves being close to water, the activity may not necessarily entail direct contact with or consumption of the water itself. Hiking and cycling, which occur away from the water, are less affected by water quality. Therefore, swimming is uniquely vulnerable to the risks posed by contaminated water bodies, highlighting the importance of monitoring and maintaining safe water quality for recreational activities.