![labor day crowds temporarily impact local streams](https://utterbuzz.com/wp-content/uploads/2024/08/labor-day-crowds-temporarily-impact-local-streams-640x427.jpg)
Crowds flocking to rivers and streams over Labor Day weekend temporarily introduce chemicals and microscopic organisms into their local waterways. The research is the first holistic assessment of how recreation impacts streams. Findings also provide insight into the compounds and chemicals people splash around in when their favorite swimming spots are packed.