Just a few decades ago, almost no one would have thought that simple carbon dioxide would be considered a major pollutant. After all, it's important to nearly all life in some way. However, this extremely common gas is also thought to be a major contributor to global warming. It's not alone in the possible contaminants of our air, too. All kinds of air pollution keep occurring, and some of these pollutants are showing up more often.
Clean air is extremely important, with air pollution acting as a major threat to everyone and everything. Air pollution in some areas kills more people yearly than automobile accidents. In China, over sixty-five thousand people die each year due to air pollution, and there's actually a visible brown cloud in the atmosphere above parts of Asia. Air pollution is a real problem, and it's affecting plants, animals, humans, agriculture, and even the weather. Let's take a look at some of the major types and sources of air pollution and the problems they cause.
Nitrogen Dioxide - One of the most common pollutants in the air, this is a reddish brown gas with a sharp smell and toxic by inhalation. It's produced primarily by vehicles, and can ...