Application #1, Human Impacts on the Environment
The article that I read about is based around the affects the Canadian coal mines have on the Elk River ecosystem in British Columbia. However, as they continue to do more research, they are learning that the contamination is affecting the communities farther downstream where it is contaminating drinking water. They have also learned it has spread into the United States. The chemical that is affecting all of this stuff is selenium. The problem is being created by the coal miners. When they dig into the sides of these mountains the piles that they make often have selenium in them. When it is exposed to water or air it starts to seep out of the rock. Once it gets into the river it can spread very easily because algae and invertebrates collect it and then other animals feed off them and other animals off them and so on. It is bad enough now that it is giving fish and some other animals reproductive issues. It was estimated that this problem killed around 180,00...