There has been many air quality tradegies through the years that had many deaths and affected a lot of people. There was one in Meuse Valley, Belgium 1930. Coke ovens, steel mills, blast furnaces, zinc smelters, glass factories and sulfuric acid plants produced an estimated SO₂ concentration of 8 ppm. It was estimated that the SO₂ concentration was reached to 22,600 ug/m³. With in a few days, 600 people feell ill and 63 people died from it. In Donora, PA 1948 Effluents from a number of industries such as a sulfuric acid plant, a steel mill, and a zinc production plant became trapped in a shallow valley inversion to produce an unbreathable mixture of fog and pollution.6,000 became ill and there were 20 deaths. In London, England

Air pollution comes from many different sources. Natural processes that affect air quality include volcanoes, which include sulfur, chlorine, and ash. Many forms of pollution are human-made. Industrial plants, power plants and vehicles with internal combustion engines produce nitrogen oxides, VOCs, carbon monoxide, carbon dioxide, sulfur dioxide and particulates. In cities, cars are the main source pollutant. Other human-made sources include aerosol sprays and leaky refrigerators, as well as fumes from paint, varnish, and other solvents. One thing about air pollution is that it doesnt stay in one place.Winds and weather flow the pollution around locally.

Al Gore was concerned about pollution in the water. He was also concerned about global warming. He wants to clean up lakes and also wants to keep proctecting the Ozone layer.

There is Grarbage in the ocean. There is also an island in the ocean of garbage. One of them is the Great Pacific Garbage Patch. The reason that they won't clean up the garbage because animals live in it. People do not want to effect the wildlife. The garbage stretches hundreds of miles across the north pacific ocean