Weathering release occurs of Ca and other ions into surface waters. Rainfall is acidic because atmospheric carbon dioxide dissolves in the rainwater producing weak carbonic acid. In unpolluted environments, the rainfall pH is around 5.6. Acid rain occurs when gases such as sulfur dioxide and nitrogen oxides are present in the atmosphere. These oxides react in the rain water to produce stronger acids and can lower the pH to 4.5 or even 3.0. Sulfur dioxide, SO, comes from volcanic eruptions or from fossil fuels, can become sulfuric acid within rainwater, which can cause solution weathering to the rocks on which it
Air pollution in the United States bill originally helped prevent coal mining from polluting waterways. Burning coal produces air pollutants such as nitrogen oxides (NO), sulfur dioxide (SO), particulate matter (PM), Black carbon, and smog. Increase of coal usage would greatly increase air pollution especially in areas surrounding the facilities many of which are located in communities of color and low-income. Environmental Health Education The education status here does not merely refer to the educational background or the highest degree people have earned, but more importantly, the environmental health education. Generally, the population with less education are more likely to be exposed to the impact of