How do pollutants get stored in glaciers?

Pollutants can be deposited onto glaciers through atmospheric processes, such as precipitation and atmospheric deposition, where airborne contaminants settle on snow and ice. As glaciers accumulate snow over time, these pollutants become trapped within the ice layers. When glaciers melt, these stored pollutants can be released back into the environment, potentially contaminating water sources and ecosystems downstream. This process highlights the long-term impact of human activities on remote and pristine environments.