Take for instance the Volks Wagon ad.
When you look at a car ad, you do not often find a paragraph or some sort of warning of the emissions the engines and exhausts of those cars produce. The exhaust lets off many different toxins that most are not even aware of. One main concern is the hydrocarbons that engines produce. Another production of cars is carbon dioxide; many do not realize the long term affects that CO2 can incur. Finally, a third hydrocarbon pollutant transpires through fuel evaporation in multiple ways. There are many new technologies that are being incorporated into car manufacturing everyday that in the not to distant future we wont have as much to worry about as far as pollution goes especially if the electric car becomes more prominent and reliable. In addition to that carpooling and taking the bus are two extremely effective ways of transpiration; if your legs don't work that is.
Most pollution that is released by cars comes from the exhaust, mainly in the form of hydrocarbons. Hydrocarbons are organic compounds, a combination of two or more elements, which contain only carbon and hydrogen. Hydrocarbons are released when fuel in the engine burns partially. When hydrocarbons come in contact with sunlight they form ground level ozone. Ground level ozone is a major ingredient in the formation of smog. Ground level ozone is responsible for irritating eyes, damaging lungs, and it complicating respiratory problems. Hydrocarbons aren't the only pollutants released through car exhaust. Two more pollutants released through car exhaust are carbon monoxide and nitrogen oxide. The first reduces the flow of oxygen to the bloodstream, and could harm people with heart disease. Nitrogen oxide is formed when a car engine gets hot. It contains chemicals that aid in the formation of ground level ozone as well as acid rain.1 Acid rain destroys the outsides of buildings, statues, etc.