Coal ash is the leftover ash that is created from burning coal for energy. When coal is burned, it releases harmful substances into the air such as sulfur dioxide and nitrogen oxide. These, along with other chemicals, combine with the ash to create coal ash.
When coal ash is released into the environment, it can have negative health effects on people and animals. The fine particles in coal ash can be inhaled, which can cause respiratory problems such as asthma or bronchitis. The metals in coal ash, such as lead or arsenic, can also be absorbed into the bloodstream and cause problems such as kidney damage or even cancer.
If coal ash gets into the water, it can also harm aquatic life and make it unsafe for humans to drink or swim. This can happen if coal ash is stored in unlined ponds or landfills, where it can seep into the ground and contaminate nearby water sources.
So, to summarize, coal ash is the leftover ash from burning coal that can have harmful metals and fine particles that can cause respiratory problems, kidney damage, or even cancer. It can also harm aquatic life and make water unsafe for humans to drink or swim in.