- Air pollution – coal plants put toxic smoke into the atmosphere
- Consuming fish – coal plants put toxic smoke into the atmosphere, absorbed into the ocean water, consumed by fish. Larger ocean fish can contain high levels of mercury because they eat smaller fish that contain mercury and it builds up in their body. Larger fish have higher levels of mercury.
- Vaccines – -for many years vaccines contained thimerosal as a preservative, which is mercury and this is still found in some vaccines today
- Dental Fillings – mercury exposure through dental amalgams
